A review of temporal perspective of service encounter

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    Chair of Service Operations Management

    Prof. Dr. Cornelia Schn

    Supervisor: Fabian Strohm

    Seminar Thesis

    Perspectives on Temporal Aspects of ServiceEncounters: A Review of the Literature

    Candidate in the Master of Science program

    Dang, Viet Linh

    Windmuhlstr. 2

    68165 Mannheim

    E-Mail [email protected]

    Phone 015757805211

    Matr. No. 1438955

    Place, handover date

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    Table of Contents

    List of Figures .......................................................................................................... III

    1 Introduction ....................................................................................................... 1

    1.1 Background............................................................................................................... 1

    1.2 Motivation and purpose.......................................................................................... 1

    2 Impacts of service duration on customer behaviors ...................................... 2

    2.1 Moderating mechanisms........................................................................................ 2

    2.2 During service encounter....................................................................................... 3

    2.3 After service encounter........................................................................................... 4

    3 A review on temporal aspects of service encounters .................................... 5

    3.1 The waiting-profit chain ........................................................................................... 5

    3.1.1 Environmental moderators ........................................................................ 5

    3.1.2 Personal moderators ................................................................................ 6

    3.2 Service duration and behaviors during service encounter................................ 7

    3.2.1 Balking behavior.............................................................................................. 7

    3.2.2 Reneging behavior.......................................................................................... 9

    3.2.3 Propensity to purchase................................................................................. 10

    3.3

    Service duration and behaviors after service encounters............................... 11

    3.3.1 Gestalt characteristics................................................................................... 11

    3.3.2 The role of duration....................................................................................... 13

    3.3.3 Cohesiveness and purpose of evaluation.................................................. 15

    4 Conclusions ..................................................................................................... 18

    4.1 Theoretical implications........................................................................................ 18

    4.2 Directions for further research............................................................................. 19

    4

    List of ReferencesPublication bibliography .................................................. XX

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    III

    List of Figures

    Figure 1 The Waiting-Profit chain....................................................................................................... 2

    Figure 2 Hypothetical Service Encounter Satisfaction Profile..................................................... 12

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    1 Introduction

    1.1 Background

    In spite of the fact that most of the service encounter lasts more than a few minutes,

    previous studies have only focused on short transaction where they neglected the long

    and extensive service experience (Price et al. 1995). The temporal aspects of service

    encounter refer to the periods during and after interacting with the service. Each of the

    interaction has been shown to influence the customers behaviors differently(Bitran et

    al. 2008), thus, there are numbers of ways to increase customers satisfaction by

    studying how they behave during and after a service encounter.

    As an important aspect of a service encounter, service duration is manipulated in

    different ways to achieve managers goal. Some might want to shorten the duration to

    increase turnover rate, others might want to lengthen the service time to increase

    added value. In short, it depends on the nature of business and the customer segments

    that the service provider targets.

    By outlining the effect of duration in temporal aspects of service encounter, it is argued

    that service duration in each period can account for the array of customer behaviors in

    retrospective evaluations. Although recent studies have paid attention to waiting time,

    the links between customer behaviors and service duration have not received sufficient

    focus. Thus, there is a need for more researches on developing a suitable framework

    for studying customer behaviors under aspect of time.

    1.2 Motivation and purpose

    The review is crtically based on the article Managing Customer Perspectives:

    Temporal Aspects of Service Encounter by Bitran et al. (2008). The purpose of this

    review is to give a broader understanding of the current connection between behavioral

    sciences and operational management, and to appraise the existing research on

    temporal aspects of service encounters. This paper also aims to show evolution of thearguments in recent years and identifies major topics in online, and offline queueing

    theory by providing different perspectives of major arguments in the last two decades.

    Nonetheless, this review does not intend to achieve new findings in the related field

    and only contributes as a summary of the literature for academic readers who have

    interest in the fields of behavioral sciences and operational management.

    The following chapter starts with a brief summary of the current literature based on the

    original conceptual framework. Next, chapter 3 criticizes the key arguments including

    the impacts of duration on behaviors during and after service encounter. Moreover, this

    chapter also examines future development of the above connections by shedding new

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    light from recent findings on this area. Finally, the review is concluded with theoretical

    implications as well as open questions for further research in this area.

    2 Impacts of service duration on customer behaviors

    2.1 Moderating mechanisms

    According to A theory of the allocation of time(Becker 1965), longer service time is

    perceived as being more expensive. Since time is a valuable resource, managers are

    endeavoring to reduce the service duration and distract customers from their actual

    service time. However, each customer perceives duration differently and may exhibit

    undesired behaviors during and after the encounter if the service providers do not pay

    necessary attention to them. Therefore,it is necessary to find the connection between

    service duration and profit under temporal aspects. The conceptual framework

    described in Figure 1 comprises the links that connect operational policies to duration

    and ultimately, profitability. Among these chains of effect, environmental and personal

    moderators indirectly affect behaviors during and after service encounter. By inducing

    overall evaluation and behavioral intentions, these moderators can somehow increase

    customer satisfaction and reduce the negative effects (if any) of the experience.

    Figure 1 The Waiting-Profit chain

    Source: Bitran et al. 2008 p.64

    Within environmental moderators, Bitran et al. (2008, p. 64) noted that the effects of

    ambient conditions together ( music, color, lighting, temperature) are undeniable but

    insisted on researching individually. In the meantime, the space/function is long known

    to have impact to behaviors apparently with a various examples from previous studies

    (comfortable furniture, visually materialized layouts). Meanwhile, signs, symbols, and

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    artifacts are carefully researched in physical and virtual environments. The personal

    moderators includes personality, situation, culture, attribution, and experience.

    Personalityis thearousal-seeking tendency, ability to screen environmental stimuli. On

    the other hand, situation is themomentary mood, plans and purposes for being in the

    servicescape. Within culturalaspect, Westerners are more impatient than those from

    the East are. Finally, the effect of experience of customer to duration showed

    controversial findings, which contradicted each other in different settings. Hence, it

    required further research to clarify the psychology behind the contradictory

    phenomena. The remainder of this section will explain the behavioral intention during

    and after service encounter under the influence of service duration and waiting time.

    2.2 During service encounter

    There are three behaviors observed during the service encounter, which are balking,

    reneging, and likelihood to purchase. While balking refers to the abandonment of

    queue when customers observe the queue, reneging is the situation when customers

    are already in the queue but abandon before being served.Clearly, balking and

    reneging lead to loss sales and lower customer satisfaction. The reason behind these

    issues is the diversity of customers patience level since patience is greatly based on

    customers expectations regarding the waiting time in the system. On the other hand,

    Leclerc et al. (1995, p. 117) pointed out that consumers do not value time as a

    constant, rather it depends on the situation. Additionally, cost of time is hard to

    estimate since customers do not have consistent number of their opportunity cost of

    time. However, people are risk averse with time than with money and perhaps, they

    value time more than money.

    A correlation between longer waiting times and a decrease in the propensity to spend

    was found by Jones, Dent (1994, p. 54) where they claimed that the longer the early

    stage of service encounter, the lower the amount of money spent during service

    encounter, though it is not universally hold. Additionally, as customers move closer totheir customer service representatives/service provider, their moods will increase

    regardless of the queue structure. On the other hand, large queue further puts a lot of

    stress on the employees and therefore deteriorate the quality of the service. Similarly,

    employees are forced to make tradeoff between full-service but longer line and partial

    services but shorter lines. Hence, long queue negatively influences the employees and

    ultimately, the experience of the service encounter.

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    2.3 After service encounter

    Future behaviors of customers after service encounter such as repurchasing and

    Word-of-Mouth are considered as long-term effect of service duration. Two questions

    challenge the service providers in improving sales and profit: How likely is the customer

    to return and choose the same service? How will service duration affect what

    customers tell the others? In the end, the answers to these problems depend on how

    customers summarize their experience since they are not able to recall all the details of

    an experience. Bitran et al. (2008, p. 72) has identified four factors, from which

    customers can formulate their retrospective summarized experience.

    First, gestalt features of a service encountered are defined as the components of the

    experience on which customers focus when making their summary evaluations. This

    includes rate & trend, peaks & troughs, and end effects. Rate of outcome change is the

    determining factor for overall evaluations. Trend is the overall change from the

    beginning to the end. Meanwhile, end effect, the final level of customer satisfaction in a

    service encounter, is likely to be given higher weight in evaluations.

    Second, duration neglect is the overall evaluations of experiences, being based solely

    on the gestalt features and not influenced by the passage of time. However, if there is

    salient feature of the experience, customer behavior will not exhibit duration neglect.

    Meanwhile, perception of duration can vary compared to actual duration and haveimpact to evaluations of experiences despite the absence of duration neglect. It is

    noted that any improvement in reducing duration should be emphasized on customers,

    rather than assume that the customers will observe the change.

    Third, future behaviors of customers depend on the perception of service encounter as

    a whole unit (cohesive) or a sequence of event (partitioned). The more cohesive the

    experience is, the better the evaluation of an improving experience is. Finally, if the

    purpose of evaluation is to decide whether to return to the service, there is stronger

    sensitivity to duration than if the purpose is to communicate.

    Because personal moderators cannot be changed, managers can affect overall

    evaluations and behavioral intentions by controlling the duration or the environmental

    moderators. This perception management framework includes providing information of

    the queue number, estimated waiting time, and guarantee time with high stake. In

    conclusion, the managerial implication is to select the most influential moderators of the

    service setting and based on that, a relevant implementation strategy is formulated.

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    3 A review on temporal aspects of service encounters

    3.1 The waiting-profit chain

    The waiting profit chain proposed by Bitran et al. (2008, p. 64) in Figure 1 summarized

    the series of effects that show how duration in operational policies influence customer

    behaviors and eventually, profitability. After operational policies of the queueing system

    are installed, attentions are given to duration of the service encounters, which are

    determined and affected by several factors, notably environmental and personal

    moderators. Environmental moderators can be controlled and shaped by managers to

    match supply with demand (Bitran, Mondschein 1997, p. 526) or influence customers

    time perception and behavior (Gorn et al. 2004, p. 222). Meanwhile, personal

    moderators contain a more subtle factor and are not simply manipulated according to

    managers wish.These following sections will delve into detail two moderators of thelinks connecting duration to customer behaviors.

    3.1.1 Environmental moderators

    With regard to servicescape of environmental moderators, Orth and Wirtz (2014,

    p. 297), published a paper studying consumer processing of interior service

    environment. This study introduced a new concept called fluency, which is the ease

    and speed of information processing or the ability to perceive the complexity of an

    environment. Processing fluency can explain how visual complexity can reduce

    attractiveness of service environment while visually less complex and more fluent

    interiors increase positive feeling of customers. Prior study by Baker and Cameron

    (1996, p. 343) likewise had suggested that customers desire spatial layout where they

    can observe the progress of the queue. Nevertheless, the response from customers

    will base on their perceptual style and specific shopping goal. The study by Orth and

    Wirtz (2014, p. 305) further proposed that unfavorable experience of complex

    environments is more significant for a more field-dependent visitors who know what to

    buy beforehand. The authors suggested several ways to reduce complexity by using

    less variety of objects, colors, textures complementing with organized layout and

    uniformly oriented pattern. Yet, the decision should be in line with the primary target

    segments where different characteristics and behaviors show significant impact on the

    success of the business.

    In a paper published in 1990, Alpert and Alpert (p. 128) studied the influences of music

    on mood and customers purchase intentions. The authors found that sad music is

    more effective in influencing buying intention than happy music and silence were.

    Though the ability of music to influence mood seems possible, the extent of impact and

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    the preferable direction may vary in other contexts. For instance, while happy music is

    suitable in amusement park, sad music as in the ads song Feelings from AT&T

    evoked a nostalgia, which positively increases the likelihood of purchase

    In addition to 3 dimensions of servicescape described by Bitner (1992, p. 65), socialelements, i.e., the interaction of individuals in the service encounter, are highly

    significant, especially in restaurant business (Tombs, McColl-Kennedy 2003, p. 448).

    Lin and Liang (2011, p. 364) made a focus on staffs emotions as a potential

    environmental moderator and studied its effect. The findings exhibited a positive

    correlation between employees emotion and customers, which substantiates the

    emotional contagion theory. Moreover, the results suggested customer climate is

    bounded together in emotions and satisfactory. In particular, positive experience of a

    customer is likely to spread to others and creates a pleasant shared experience.

    With a similar approach to Lin and Liangs previous study, Fowler and Bridges (2012,

    p. 179) s paper examined the potential effect of service providers mood as a

    moderator of the relationship between customer satisfaction and service environment.

    Specifically, the use of positive atmospherics (specifically ambient scent) resulted in

    better employee attitudes, yet not better customer satisfaction, which is consistent with

    the findings of Ellen and Bone (1998, p. 36). The results from an empirical study in

    1998 suggested that customer attitude is remarkably influenced with the existence of

    incompatible scent. On the other hand, ambient scent stimulated the courtesy,

    politeness, and friendliness of customers. More importantly, the provided scent could

    cause an overall overestimation of service duration, which distorts the perception of

    time and greatly reduces the negative feeling of waiting. Last but not least, Fowler and

    Bridges (2012, p. 177) found a correlation between service providers negative mood

    and declining customer satisfaction in the presence of ambient scent. It was suggested

    that the scent is likely to boost service providers self perception of behavior while

    decreases customer perception of that behavior. Hence, when the service providersare calm, ambient scent has no effect; on the other hand, aversive mood from service

    providers triggers a decline of customer satisfaction.

    3.1.2 Personal moderators

    Bitran et al. (2008, p. 65) has identified five major personal factors that control the

    temporal effect on the customers satisfaction: personality traits, situational factors,

    attributional moderators, cultural factors, and experience. Prior research such as

    Larson (1987, p. 904) had argued that psychological and sociological factors could be

    major influences in the area. He suggested that time is worth more to some groups of

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    customers than to others, which means their personality traits or cultures dictate their

    valuations of time. In addition, the study recalled a situation in which customers prefer

    long queue than shorter one in the economic crisis because customers feel more

    secured and better off with the majority. Therefore, psychological and sociological

    factors do play a role in defining customers attitude toward waiting time.

    With regard to cultural difference, Winsted (1997, p. 353) s study demonstratedthe

    distinction of civility dimensions. Negative behaviors are considered the same in US

    and Japan while dimensions regarding positive behaviors shows remarkable

    differences. In US, individual demeanor is appreciated while empathy and concern are

    immensely given to customer in Japan. This distinction reflects the consistency of US

    individualism and Japanese collectivism. Along this line, a more recent study by Chen

    et al. (2005, p. 299) emphasized the impatience of Westerners compared to people

    from the East in the context of waiting for delivery.

    The impact of experience to customer attitudes is still disputable. If customers

    experienced delays in the service, they would sympathize with the service providers or

    otherwise, they would be more enraged by the setback (Sarel, Marmorstein 1999,

    p. 291). In contrast, a paper from Bogomolova (2011, p. 806) examining Australian

    market, provided evidences that support the claim of Zohar et al. (2002, p. 576) that

    solely loyal customers are more adapted to delays than customers using several

    services. The claim was further substantiated by the consistent results collected from

    several studies such as Barlow (2002, p. 401) s paper examining hospital queueing.

    One possible explanation is the fact that loyal customers are not able to compare their

    experience in other providers while customers who go to others are able to do.

    The following sections will discuss the impact of the duration to customers behaviors

    during and after service encounters. During service encounters, waiting for their turns

    might evoke a hesitation to join the queue or abandon the wait if they feel the service is

    not worth waiting for. Meanwhile, after the encounter, if they are very satisfied with the

    services, they may choose to return or even refer the services to their relatives.

    3.2 Service duration and behaviors during service encounter

    3.2.1 Balking behavior

    Since matching supply and demand is an inherent problem that every service providers

    face, queueing for the service is typical thing that customers undergo as part of their

    valuation of the services. Yet, if the queue is perceived as too long, the customers are

    highly to balk and seek similar services from others. A study of Xu et al. (2007, p. 989)

    posed another angle in queueing problem in which queue is managed by ticket

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    consulting time with physician since customer satisfaction negatively correlates with the

    waiting time.

    3.2.2 Reneging behavior

    While balking customers make their decision before entering the queue, renegingcustomers have to make a harder choice since they have committed their time already

    in the queue. The following paragraphs will examine the influence of service duration to

    reneging behavior in call centers, website environment, and physical queue.

    With the growth of service industry, many companies are in the need of call center

    service to increase customers satisfaction. Call centers customers often receive delay

    announcement and decide to balk or wait for the service. Munichor and Rafaeli (2007,

    p. 516), in a study of customers reactions to telephone waiting fillers, found that by

    announcing delay time rather than playing music or apologies, reneging rate will be

    lower. However, the delay time is not usually the actual time customers have to wait.

    Hence, if the actual waiting time is larger than the announced, customers are likely to

    renege from the system. Jouini et al. (2011, p. 546) later confirmed that reliable delay

    announcement is more crucial when customer reaction level is high and when system

    congestion is high.

    In online settings, waiting for the website to load, transaction to complete are typical

    burdens that customers have to endure. Three years after publishing nine factors that

    influence customers willingness to wait in online settings, Ryan and Valverde (2006,

    p. 197) continued to improve and identified four conceptual categories to examine how

    e-customers respond to waiting on the internet. The majority of the factors falls into

    individual factors, which are defined by the users themselves. Time pressure and fill

    the wait are two factors determined by individuals but changing in every situation.

    While previous study noted the difference between users response to pre-process and

    in-process wait (Maister 1985, p. 116; Weinberg 2000, p. 36), the examination of users

    logs showed no significant distinction between the two position of waits (Ryan,

    Valverde 2006, p. 200). One possible explanation could be the salience of the waits

    was unsteady that users were not aware or conscious of. Next, the author introduced

    website-related factors, which consists of elements that pertain to the specific website

    currently in use. Finally, task-related factors (importance, availability of alternatives )

    are those belong to the distinct tasks being carried out. The results of the qualitative

    study also implied a focus of websites functionality when users achievement of

    objective is more crucial than their online time.

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    Although queueing in physical lines is very daunting to customers, perhaps they feel

    less discouraged when there are people suffering with them. A paper published by

    Zhou and Soman (2003, p. 523) suggested that the more people behind a customer,

    her mood is more positive and her reneging rate is lower. This was explained by the

    observable factors which make social comparisons possible and people tend to derive

    value from their past achievement (Bem 1972, p. 41). Continuing this line of work, Koo

    and Fishbach (2010, p. 721) confirmed the theory after conducting a study in a US

    university experiment. The authors further emphasized on the importance of the

    presence of people behind in the physical lines, where they found that the value of

    services/ goods increase (vs. decrease) if there is the presence (vs. absence) of

    people behind. These findings were also the subject of analysis of Tombs and McColl-

    Kennedy (2010, p. 129), who, in the context of coffee shop, found that the presence of

    other customers increases the patience level of customers. This resulted into higher

    endurance against wait and lower reneging rate.

    3.2.3 Propensity to purchase

    After long queue of wait in discouragement, customers still have to decide whether to

    purchase or not. The final phase of the transaction is the most crucial for the service

    provider. Successfully ending the checkout and managing service operation around

    this phase can deliver considerable benefits. If the wait is dissatisfied, consumers may

    decrease their intention to purchase or purchase less lucrative service. The following

    paragraphs discuss the potential effects of waiting on customers tendency to

    purchase.

    Rafaeli et al. (2002, p. 127) conducted a study in laboratory to find the effect of queue

    structure on customers attitudes. The authors found that as customers progress closer

    to service providers, customers mood would get better. Though the previous study by

    Jones and Dent (1994, p. 54) showed that longer waiting times correlate with lower

    purchase during service encounter, the inconsistent results of both analyses can beexplained by the uncontrolled personal and environmental moderators during service

    encounter. On the other hand, Allard C.R. van et al. (2012, p. 159) suggested that

    instead of reducing waiting time, perception management is more appropriate and

    flexible for service providers to implement. For instance, by offering customers

    engagement opportunities to distract them from the wait, service providers can

    decrease negative attitude of customers (Tom, Lucey 1995, p. 25).

    In a positive side, waiting can be seen as a signal of services/ products quality.

    Giebelhausen et al. (2011, p. 901) claimed that waiting is the additional benefit of

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    products/ services that increases customerssatisfaction. Generally, if the

    products/services evaluation are complex, customers might need more time to observe

    and assess their likelihood to purchase. Moreover, consumers are affected by actions

    of other people before them as indicated in social influence theory (Latan 1981,

    p. 343). Nonetheless, price sensitive consumers consider waiting as an extra cost and

    might be unwilling to wait to purchase better-quality products/services.

    3.3 Service duration and behaviors after service encounters

    After a service encounter, customers often face two questions, which are formed by

    their memories and retrospective summaries: Should they recommend the services to

    their friends? Should they continue to purchase from the services? Many studies have

    supported the theory that customers cannot remember whole experience, but rather,

    the salient parts of it (Ariely et al. 2000; Ariely, Zakay 2001). In addition, it is not only

    what happened, but also when it happened during the service encounter that

    constitutes the memory of customers (Hsee 1996, p. 255).

    Ensuring customers satisfied during the service encounter is not sufficient to increase

    sales and profitability. The service providers need those customers to be back and

    more new customers to come. The study by Eisingerich et al. (2014, p. 48) confirmed

    this theory and introduced another behavior, called customer participation, in which,

    customers are encouraged to give constructive feedbacks and continue spending fromthe service provider in the future. The participation of customer suggests a proactive

    effort to appreciate the services process and experience and to improve current

    offerings. Indeed, as a customer relationship strategy, customer participation is better

    than positive Word-of-Mouth referrals.

    Hence, the key to increase customer satisfaction is to identify which features are to be

    remembered and how much weight is given to each of them by the customers. Bitran et

    al. (2008, p. 72) has identified a list consisting of four subcategories: the role of gestalt

    features, the role of duration, role of perceptions of cohesiveness and objective of

    evaluation, which are further examined in the following sections.

    3.3.1 Gestalt characteristics

    Gestalt characteristics of a service encountered are defined as the components of the

    experience on which customers focus when making their summary evaluations. Ariely

    and Carmon (2000, p. 193) have classified three important sets of gestalt feature: rate

    and trend of customer satisfaction, the comfort level at peaks and the displeasure at

    troughs, and the enjoyment perceived at the end of the service encounter.

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    Mathematically, the rate of an event is the slope between the nearest peak and trough,

    and the trend is the linear interpretation of the overall service encounters satisfaction

    through time (see Figure 2). In another words, rate describes the relative change in a

    period of service encounter while trend measures the average satisfaction profile of the

    whole experience. Hence, the moderators described in Figure 1 collectively control the

    nature of the trend. Interestingly, Soman and Shi (2003, p. 1129) found that the

    consumer choice is driven by the perception of progress toward the goal which means

    satisfaction with a waiting experience increases or decreases over time depending on

    the customers perceptions of how much closer they are to the goal.

    Figure 2 Hypothetical Service Encounter Satisfaction Profile

    Source: Bitran et al. (p. 66, 2008)

    Next, peaks and troughs are the turning point of customers satisfaction. Using a

    memory-based framework, Montgomery and Unnava (2009, p. 91) attempted to explain

    why certain gestalt features (peaks, trend and end effect) influence service evaluation.

    They suggested that when one is asked his/her evaluation of a certain event containing

    many experiences, the factors making an experience unforgettable would cause them

    to be recalled. Moreover, those experiences that are recalled will influence the

    evaluation of overall event (p.84). The paper further reconciled the inconsistency

    between Ariely & Carmon (2000, p. 194) and Schreiber & Kahneman (2000, p. 35) in

    the effect of peak intensity. The 2009 paper emphasized the distinction of the peaks,

    which caused an effect to evaluation. Thus, since the peak moment described by Ariely

    and Carnon was not unique, they could not find the desirable effect to evaluation.

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    Last but not least, end effect is the final level of customer satisfaction in a service

    encounter. Carmon and Kahneman (1996, p. 6) found that customers are more inclined

    toward giving significant weight to the end outcome in a process-oriented service. This

    so-called end-rule is so strong that customers discount the significance of the long

    waiting time when the goal is achieved. Along this line, Dalakas (2006, p. 49) analyzed

    the video sequence to study the impact customers emotion in the beginning and end

    on service evaluation. The empirical findings suggested that the end-point of the

    experience has the highest impact on how the experience was evaluated. Moreover,

    the encounters with an increasing satisfaction rate towards the end are more favorable

    and positively evaluated than others. More strikingly, a negative, negative, positive

    event will be more desirable than a positive, positive, negative event.

    On the other hand, the findings of Verhoef et al. (2004, p. 61) showed contradictory

    results against the peak-end rule (not to be confused with end rule), where the peaks

    and the end of the service are showed to contribute mostly to the service evaluation

    (Fredrickson, Kahneman 1993, p. 50). They suggested that the overall trend of the

    satisfaction profile was the important predictor of customer satisfaction. Besides, they

    found a negative side of the end effect on customer satisfaction, which was

    inconsistent with many previous researches (Ariely, Carmon 2000, p. 195; Hansen,

    Danaher 1999, p. 233). The discrepancy was explained by the difference in

    methodology, nature of study and experimental subjects.

    3.3.2 The role of duration

    Duration can affect retrospective evaluations in two ways that must be differentiated.

    First, the effect of neglecting duration in service evaluation can turn a long, tiresome

    queue to an unnoticeable moment. Second, the perception of duration when it is not

    neglected anymore depends on how customers interpret the duration. Duration neglect

    theory holds that evaluations of experiences are based solely on the gestalt features.

    The retrospective memory reduces the time effect, based on the sequence of service.

    Evaluation appears to be determined by a weighted average of snapshot of actual

    experience. On the other hand, if the duration is too salient or notable, customers

    remember the salience and consider duration of evaluations. Yet, some companies try

    to show the competitive advantage where duration is the main attribute by making the

    duration salient to customers (public transport, fast-food..) (Ariely et al. 2000, p. 524).

    Ariely and Loewenstein (2000, p. 513) suggested that if people compare experiences

    that are similar on most dimensions other than duration; they will pay more attention to

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    duration. For instance, the more standardized the service is (fast food, spa...); the more

    attention to duration is paid.

    In coping with negative experience, Liersch and McKenzie (2009, p. 311) conducted

    experiments to prove the way evaluation information listed (graphical or numericallistings) removes duration neglects effect. Their findings showed that when making

    service evaluation, people use a combination of their hedonic moments (not just peaks

    and end), in which the way they combine is determined by the format presentation of

    the evaluation. In particular, graphical interpretation of the evaluation answer made

    perception of duration significant while numerical listings of evaluation showed strong

    presence of duration neglect. Under the equivalent aspects, Monga and Bagchi (2012,

    p. 195) showed the sensitivity of numerical format in duration neglects effect. When

    they presented the number in different measures (days and months), the observed

    result suggested a greater sensitivity to changes in duration when the unit was large

    (vs. small) was induced to concrete-mindset (vs. abstract) subjects.

    However, if duration is a significant feature, it will be perceived and noticed by

    customers. Yet, no customers perception is the same: customers perceive duration to

    be larger or smaller than actual duration. Hence, when duration is salient, it still can

    have no influence on evaluation if it is perceived to be shorter than it actually is.

    Perception of time spent waiting is better prediction than actual waiting time(Davis,

    Heineke 1998, p. 64)though it is not universally true. Burton et al. (2003, p. 299) noted

    that any improvement in reducing duration should be emphasized to customers, rather

    than assuming that the customer will observe the change. The authors implied that

    actual performance imposes on customers substantially than other factors that are only

    perceived by customers. By constrast, if actions taken to reduce service duration

    appeared to be more explicitly during the service, customers might perceive it longer

    than usual. Ahn et al. (2009, p. 514) proposed a theory of how customers measure

    duration of their experience. Their results showed that the memory of an experience

    was encoded and later is retrieved to recall the experience. In particular, the more

    features, intersections the service encounter contains, the longer the perceived

    duration is.

    Indeed, the gap between actual wait time and perceived wait time is an important factor

    that affects customer satisfaction.Jones and Peppiatt (1996, p. 60) concluded that in

    waits shorter than five minutes, customers overestimate their wait time by nearly 40%,

    decreasing their utility from the experience. Thus, closing the gap requires additional

    attention and resources. Taylor (1994, p. 66)found that the more waiting time is filled,

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    the higher hedonic level they get since they feel unoccupied time longer than occupied

    time (Maister 1985, p. 115). Musicals fillers, social interaction (group waiting) can also

    distract the perception of waiting in line, therefore, mentally decrease the time a

    consumer spends waiting (Krishna 2010, p. 128)

    Mantel and Kellaris (2003, p. 536) found that cognitive resources required in critical

    thinking and evaluation have influence to how people perceive duration. If cognitive

    resources are not enough (drunk, passed out, sleepy), people use heuristics so they

    remember very little from the event. On the other hand, sufficient cognitive resources

    available drive better cognitive thinking so people remember more precisely and easily.

    Similarly, Fasolo et al. (2009, p. 224) examined the cognitive thinking of consumers

    when making choice among a number of options. The results showed that people tend

    to overestimate duration if they choose from a small number of options while

    underestimate the time spent if the choice is drawn from a larger pool of selections.

    One possible explanation is that the cognitive resources required to remember the

    choice in second case surpass the resources available, as described in the theory of

    Mantel and Kellaris (2003, p. 532)

    Finally yet importantly, service duration serves as a key measurement of the service

    quality in process-oriented service. Chiou (2008, p. 1149) suggested customers use

    service duration as a criteria for service judgments. In particular, customers use

    heuristics to estimate the link of effectiveness and duration. Hence, consumers who

    think effectiveness correlates to duration will assume the reverse. Nonetheless, when

    they cannot match price vis--vis duration (i.e. they cannot use heuristics), the longer

    the better effect will be severely damaged.

    3.3.3 Cohesiveness and purpose of evaluation

    Cohesiveness of a service encounter refers to the structure of the encounter. Whether

    it is cohesive or fragmented into sequence of separate event will decide how customer

    perceive the encounter. The notion of partitioning refers to the action of dividing

    experience at strategic breaking points, hence, affecting the experience of the whole.

    Yet, to maximize the desirable effect, the structure (cohesive or partitioned) of the

    experience needs to be considered. An improving sequence will perform worse than a

    declining sequence if the improving sequence is partitioned (Ariely, Zauberman 2003,

    p. 130).

    Ariely and Zauberman (2003, p. 138) proposed four recommendations for service

    design in the condition of ceteris paribus. First, improving sequences are favorable to

    deteriorating ones. This notion was substantiated by Dalakas (2006, p. 49) who found

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    that a sequence of negative, negative, positive events is preferable to a positive,

    positive, negative events. Second, improving services should not be partitioned while

    declining services should be partitioned. In the same aspect, Beck (2009, p. 410) found

    that in a declining sequences, partitioning reduces the effect of overall negative trend

    and leads to equal weight for each segments, hence moderating the effect of declining

    services and improving the overall evaluation.Thirdly, partitioning at a high local point

    is preferable and should lead to higher evaluations. Finally, if there must be imposed

    partitioning, efforts to increase satisfaction should be better placed before breaking

    points.

    Along these lines, McKechnie et al. (2011, p. 160) suggested that breaking points

    should be placed in the intensive phase where simultaneous production and

    consumption happen. Because passengers pay more attention to this phase than to

    others, they easily neglect the negative effect of the previous experience. For instance,

    a letdown in check-in desk may be removed from customers service assessment as

    they progress into intensive phase (onboarding) (Chen, Chang 2005, p. 511).

    In a different context, Morewedge et al. (2007, p. 707) showed that people tend to

    segregate their positive experiences due to the diminishing marginal utility. Yet, when

    the hedonic experience is considered too small, the segregation does not maximize

    their utility. For instance, eating one biscuit every day is better than eating whole bags

    at once while receiving 1 cent every day for 10000 days is worse than receiving 100

    EUR instantly. Therefore, partitioning an improving service with appropriate number of

    breaking points can maximize customershedonic utility. On the other hand, it is easy

    to over-segregate theservice, leading to decrease the overall experiences.

    The role of cohesiveness of an experience is further supported by noting how objective

    of the evaluation affects the way the evaluation is formed. Two reasons to make

    summary evaluations proposed by Ariely and Loewenstein (2000, p. 511) are:

    communicating their experience to others and deciding whether to repeat the

    experience. The authors suggested that if the purpose is the latter, there is stronger

    sensitivity to duration than if the purpose is to communicate. Indeed, the perception of

    duration is unique among customers so including ones perception of duration will

    disturb the perception of others when communicating the experience (p. 512).

    In repeat-purchase situations, when customers do not know exactly the duration of the

    next experience or have no control over it, but assume it will be similar to the prior

    experience, they will consider duration in evaluations. However, if the customers know

    the duration or can control the duration, they will not encode duration into the

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    evaluations (Ariely, Loewenstein 2000, p. 521). On the other hand, in novel purchase

    settings, Rajesh Bhargave (2009, p. 122) found that an intense beginning of novel

    experience influences overall evaluation compared to that of conventional experience.

    Indeed, novelty evokes an orienting response and subjective arousal from customers

    who pay more attention to the more salient experience. In particular, a long exposure at

    the start of a new spa service will result in better evaluation compared to inducing the

    same duration in the beginning of a habituated service. Yet, the inconsistent effect of

    arousal on memory and the absence of neutral condition of prior experience may

    require further researches in novel purchase.

    Additionally, the way the questions are constructed and the objective of the evaluation

    will influence the extent to which customers take the duration of the wait into account

    (Ariely, Loewenstein 2000, p. 513). If the customers interpret the target of the question

    and because of that, they recall the duration of the encounter, it might not be that

    duration neglect does not take effect but rather the surveys objective let customers

    think so. Hence, managers should introduce the most salient parts of their services,

    which customers are likely to give the highest weight, into the evaluation form in order

    to attract these customers and their friends.

    Moreover, not all part of the experience is evaluated equally; some parts may be rated

    higher than others are, depending on the type of evaluation question and the structure

    of the survey. Zauberman et al. (2006, p. 208) found that in an improving experience,

    people favor ratings of feelings (hedonic tasks) to judgmental evaluations (informational

    tasks). Hedonic task evaluation is more likely to be influenced by rate of change and

    how experience develops (Ariely, Carmon 2000, p. 196) while informational task

    evaluation requires a formation of hypothesis from the beginning (Hogarth, Einhorn

    1992, p. 12), thus, putting more emphasis on the initial part of the experience.

    Consequently, a declining experience will lead to positive result in informational tasks

    while an increasing experience will cause a positive result in hedonic tasks.

    In the end, the managerial implications of duration perception in service encounter are

    to create positive ends and to partition the sequence when the final ending is negative.

    On the other hand, the structure of the survey as well as the nature of customers

    purchase will dictate the customers interpretation of the survey questions. The

    challenges remain for managers to turn those interpretations into their favors.

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    4 Conclusions

    4.1 Theoretical implications

    This review contributes to the understanding of how the duration of service encounters

    can affect profits by evaluating past literatures and identifying research gaps in this

    area. In this paper, inconsistency of the appearance of peak intensity from the previous

    studies (see 3.3.1)is reconciled while new discrepancy is found (see 3.2.2). The

    study by Bitran et al. (2008) have shaped and connected the links between duration

    and profitability. These links suggest a management approach to increase customers

    satisfaction by using perception management tool. In addition, the authors have shown

    a coherent writing style that connects every section and subsection together. The

    paper was structured with chapters that followed a conceptual framework describing

    the connections from duration to profitability. At the beginning of each section, anoverview of the content was given and from that start, arguments are developed with

    supporting evidences and contrasting research. Nevertheless, some arguments were

    mixed between three queue structures which rendered the paragraphs difficult to

    follow.

    The managements of environmental and personal moderators are crucial to the service

    providers. The usage of music, organized layouts, and friendly staffs can partly reduce

    the attention toward time. Meanwhile, personal attributes belong to customer cannot be

    easily affected so managers have to adapt to situations. During the wait, customers

    may balk or renege if they feel their reservation waiting time is exceeded. Hence,

    something should be done to change that perception. Informing estimated waiting time,

    complementing free coffee or playing music filler and even encouraging social

    interaction are suggested as a counter-measure to queue abandonment. Along with

    traditional physical queue, online queue, ticket queue, and tele-queue are mentioned

    and analyzed intensively. These queues exhibit distinguished characteristics and

    require different moderators to manage customers perception.

    In conclusion, customer behaviors are influenced by service duration and two

    moderators which can be seen Figure 1. The key of management is to control service

    duration and environmental moderators to influence overall evaluations and customer

    behavior in managers favor. Nonetheless, since people respond their environments

    holistically (Bitner 1992, p. 65), all implementation should be synergized and

    coordinated to target a customer segment successfully.

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    4.2 Directions for further research

    The past researches have explained the connection betwwen duration and profitability

    under the influence of time. Nonetheless, along the arguments, there still lack the

    guarantee of assumptions and an absence of knowledge in a number of important

    issues. First, it is important to examine temporal aspects of service encounter in

    different type of services. Different queue settings (online, offline) and service business

    (call center, hospital, restaurants) have their own characteristics. Hence, focusing on

    one type will enhance the significance of the findings and the importance of the queue

    characteristics that firms employ. Second, we need to find mathematical connection

    between the personal moderator and profitability under the effect of duration. Since a

    large research body has focused on qualitative study in these connections, a

    quantification of these studies will guarantee the profit from implementing the

    improvement. Moreover, quantifying psychological factor in scheduling and service

    segmentation leads to more efficient policies than conventional ways (Carmon et al.

    1995, p. 1813). Finally, how customers perceive the partitioning of the experience is

    currently unknown though cohesiveness of an experience plays a crucial role in

    evaluation. This requires more evidence in the connection between the psychological

    behaviors of customers and experience partitioning.

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