Response–1 Market Response Modeling G Response Modeling Basics.
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Transcript of Response–1 Market Response Modeling G Response Modeling Basics.
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Response–1
Market Response Modeling
Response Modeling Basics
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Response–2
Response Models
Aggregate response models
Individual response models
Shared-experience models
Qualitative response models
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Response–3
The Concept of a Response Model
Idea:
Market
Selling effort Advertising spending Promotional spending
Marketing Inputs:
Sales Share Profit Awareness, etc.
Marketing Outputs:
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Response–4
Input-Output Model
Marketing ActionsInputs
Competitive ActionsObserved Market
Outputs
MarketResponse
Model
Environmental Conditions
Objectives
Product design Price
AdvertisingSelling effort
etc.
Awareness levelPreference level
Sales Level
Evaluation
(5)
Control Adaption
(6)
(1) (4)
(2)
(3)
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Response–5
Response Function
CurrentSales
Response Function
Min
Max
Current Effort
Sales Response
Effort Level
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Response–6
A Simple Model
Y (Sales Level)} b (slope of the sales line)
}1
X (Advertising)
a(sales level whenadvertising = 0)
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Response–8
Phenomena
P1: Through Origin
P4: SaturationP3:Decreasing Returns
(concave)
P2: Linear
Y
X
Y
X
Y
X
Q—
Y
X
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Response–9
Phenomena
P5:Increasing Returns(convex)
P8: Super-saturationP7: Threshold
P6: S-shape
Y
X
Y
X
Y
X
Y
X
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Response–10
Aggregate Response Models:Linear Model
Y = a + bX
Linear/through origin
Saturation and threshold (in ranges)
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Response–11
Aggregate Response Models:Fractional Root Model
Y = a + bXc
c can be interpreted as elasticity when a = 0.
Linear, increasing or decreasing returns (depends on c).
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Response–12
Aggregate Response Models:Exponential Model
Y = aebx; x > 0
Increasing or decreasing returns (depends on b).
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Response–13
Aggregate Response Models:Modified Exponential Model
Y = a (1 – e–bx) + c
Decreasing returns and saturation.
Widely used in marketing.
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Response–14
Aggregate Response Models:Adbudg Function
Y = b + (a–b)
S-shaped and concave; saturation effect.
Widely used.
Amenable to judgmental calibration.
Xc
d + Xc
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Response–15
Aggregate Response Models:Multiple Instruments
Additive model for handling multiple marketing instruments
Y = af (X1) + bg (X2)
Easy to estimate using linear regression.
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Response–16
Aggregate Response Models:Multiple Instruments cont’d
Multiplicative model for handling multiple marketing instruments
Y = aXb Xc
b and c are elasticities.
Widely used in marketing.
Can be estimated by linear regression.
1 2
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Response–17
Dynamic Effects
1. Marketing Efforte.g., sales promotion
Spending Level
Time
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Response–18
Dynamic Effects
2. Conventional “delayed response” and “customer holdout” effects
Sales Response
Time
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Response–19
Dynamic Effects
3. “Hysteresis” effect
Sales Response
Time
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Response–20
Dynamic Effects
4. “New trier”“wear out” effect
Sales Response
Time
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Response–21
Dynamic Effects
5. “Stocking” effect
Sales Response
Time
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Response–22
Aggregate Response Models:Dynamics
Dynamic response model
Yt = a0 + a1 Xt + Yt–1
Easy to estimate.
currenteffect
carry-overeffect
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Response–23
Aggregate Response Models:Market Share
Market share (attraction) models
AiMi = ––––––––––––––––––
A1 + A2 + . . . + An
Ai = attractiveness of brand i.
Satisfies sum (market shares sum to 1.0) and range constraints (brand share is between 0.0 and 1.0)
Has “proportional draw” property.
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Response–24
Individual-Level Response Models:Requirements
Satisfies sum and range constraints.
Is consistent with the “random utility” model.
Has the “proportional draw” property.
Widely used in marketing.
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Response–25
Individual-Level Response ModelsMNL
Multinomial logit model to represent “probability of choice.” The individual’s probability of choosing brand 1 is:
eA1
Pi1 = –––– eAj
j
where Aj = wk bijk k
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Response–26
Logit Model Implications . . .
Marginal Impact of a Marketing
Action
Probability of Choosing the Alternative
0.0 0.5 1.0
Low
High
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Response–27
Attribute Ratings per Store
Parking Store Variety Quality for Money Value
1 0.7 0.5 0.7 0.7
2 0.3 0.4 0.2 0.
3 0.6 0.8 0.7 0.4
4 (new) 0.6 0.4 0.8 0.5
ImportanceWeight 2.0 1.7 1.3 2.2
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Response–28
Shares per Store
(a) (b) (c) (d) (e)
Share Shareestimate estimatewithout with Draw
Store Ai = wk bjk eiA new store new store (c)–(d)
1 4.70 109.9 0.512 0.407 0.105
2 3.30 27.1 0.126 0.100 0.026
3 4.35 77.5 0.362 0.287 0.075
New 4.02 55.7 0.206
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Response–29
Objectives
Profit(= Sales Margin – Costs)
Sales
ROI
Market share
Maximization over time
Dealing with uncertainty
Multiple goals
Multiple points of view
Others ??
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Response–30
Shared Experience Models
Base the response model on behavior observed at other leading firms:
Advisor model
PIMS model
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Response–31
Qualitative Response Models
Rules to capture qualitative response:
The retailer will accept the trade deal, but what he does with it is based on coop advertising dollars. If the deal includes coop money, the retailer will accept the deal and pass on all of the discount to the consumer. If the discount is greater than 30 percent, he will put up a big display. Otherwise, the retailer leaves the item at regular price and does not use an ad feature or a display.
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