MBA Core Strategy Course Analysis - Harvard Business School

38
Copyright © President & Fellows of Harvard College MBA Core Strategy Course Analysis Juan Alcacer, David Collis, Daniel Gross, Raffaella Sadun, Thomaz Teodorovicz August 17 th , 2020

Transcript of MBA Core Strategy Course Analysis - Harvard Business School

Page 1: MBA Core Strategy Course Analysis - Harvard Business School

Copyright © President & Fellows of Harvard College

MBA Core Strategy Course AnalysisJuan Alcacer, David Collis, Daniel Gross, Raffaella Sadun, Thomaz Teodorovicz

August 17th, 2020

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• To benchmark the core/quasi-core MBA strategy courses across top-ranked business schools in the

United States and Europe

• This report summarizes the main findings

• All schools are anonymized and referred to as School 1, 2, 3, …, 20. The order was generated

randomly.

Objective

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• Collection and analysis of syllabi (2019-2020 academic year) from 20 top business schools around

the world

• 17 business schools in the United States and 3 business schools in Europe

• Information on content, faculty/staffing, pedagogy, and reading materials

• 19 1-hour interviews with faculty in charge of course to

• Corroborate/clarify syllabus information

• Obtain quantitative course information

• Understand context of course (positioning in MBA program, staffing, strengths and

weaknesses)

• Understand pedagogical approach

• Analysis and grouping of data in the following areas

• Context

• Faculty/Staffing

• Content

• Pedagogy/Grading

Methodology

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• Timing: the core strategy course is often a stand-alone course available in the 1st semester (80%) as

the content is useful for internship interviews

• Courses have either one of two structures: marathon (several weeks with short sessions) or sprints

(few weeks with long sessions)

• It is common for senior faculty to teach the course and to continue teaching it for long periods of time

• Relative homogeneity in the topics covered but heterogeneity in how topics are covered

• Most schools (14 + 3) follow classic tradition and/or value-based strategy

• Focus on core theoretical concepts of competitive strategy (e.g. price/cost strategies,

alignment, 5 forces, and alike) discussed verbally and through cases

• 3 of these schools have idiosyncrasies briefed in the report

• Other schools (3) adopt an economic-driven course

• Focus on game theory models of dynamic interaction (e.g. models of entry, price wars,

and alike) or on formal economic models about competitive strategy (e.g. Hoteling model

of diversification)

• Most schools use a mix of case method and lectures

Main Findings

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CONTEXT

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Status of strategy course in the MBA curriculum

6

20.0%

80.0%

Quasi-core Core

Course type within MBA curriculum

• Change of core status to

quasi-core (if any) is often

imposed by school

• Core: mandatory to all full-

time MBA students

• Quasi-core: within a selected

set of “menu” of courses

which students must choose

some from

• Even quasi-core courses are

popular amongst students• Enrollment rates between 60

and 75% of the cohort

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Timing of the main strategy course

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• Why does it concentrate in the 1st semester?

• Course covers concepts that will be important for internship interviews

78%

22%

50%

50%

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Position of other courses in relation to main

strategy course

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Course Before Concurrent After None

Microeconomics 2 16 0 2

Finance I 4 14 2 0

Accounting 5 14 1 0

Business Analytics 4 14 1 1

Marketing 4 10 6 0

OB 7 10 3 0

Operations Management 1 8 11 0

Macroeconomics 0 7 6 7

Ethics 2 3 2 13

Entrepreneurship 0 2 0 18

Large variation in courses

taught before and after

strategy due to:

(1) variation in when strategy

is taught; and

(2) variation in the structure of

the MBA program

Technical courses are taught

concurrently with strategy

Strategy is often the only

case-based course in the

semester in which it is taught

No evidence of coordination

across courses

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Schools vary in the length of the strategy course in

terms of weeks and in sessions

9

8.35

10

6

9

13

9

5

10

6

5

10

8

7

6

6

10

5

13

10

6

13

0 5 10 15Weeks

AverageSchool 20School 19School 18School 17School 16School 15School 14School 13School 12School 11School 10

School 9School 8School 7School 6School 5School 4School 3School 2School 1

Course length in weeks

14.5

20

12

24

13

15

12

14

12

9

10

14

14

12

12

10

8

26

20

12

21

0 5 10 15 20 25Sessions

AverageSchool 20School 19School 18School 17School 16School 15School 14School 13School 12School 11School 10

School 9School 8School 7School 6School 5School 4School 3School 2School 1

Course length in sessions

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Strategy courses can be “marathons” (extensive)

or “sprints” (intensive)

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Context: other notes

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• Most schools reported having experiences low student-evaluations in their

recent past that led to a revamp in the course

• Revamps punctuate periods of long stability with no changes in faculty

and modest changes in topics

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Summary of context

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• Strategy is mostly taught as a core course in 1st semester, often concurrently

with technical courses that do not use cases

• No reported overlap with other courses

• Two types of strategy courses:

• Sprints: long sessions in fewer weeks (most courses)

• Marathons: short sessions spread over many weeks

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FACULTY/STAFFING

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Staffing – More seniors, less juniors

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• In all schools but one, there is at least one senior faculty member teaching the

core class• In 10 schools, out of 19 interviewed, all teaching faculty are seniors

• Only 4 schools assign juniors automatically to core strategy• Most schools place juniors in undergrad course, part-time MBA course or elective

• Only these 4 schools have a process to rotate faculty in and out of the core class

• Only 3 schools reported to have some form of course head across sections

taught; most schools have only an informal coordination

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Staffing – other notes

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• Often the faculty teaching the core class do so for a long time • Schools reported having senior faculty teaching the same course for between 10

and 14 years

• When juniors start teaching the course, schools eventually report having some

mentoring process, though often informally

• 8 out of 19 schools use teaching assistants

• Schools rarely report formal coordination across faculty teaching different

sections of the same course

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Instructors typically teach 2 sections at a time

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• Higher faculty leverage

above that line, lower

faculty leverage below

that line

• Tradeoff between

teaching multiple times

for the same course for

short period of time vs.

teaching once for a long

period of timeSchool 1

Schools

3 and 18

School 4

School 5

School 6Schools

2 and 10

School 11

School 13

School 14

Schools 7, 8, 9,

12, and 16

School 17

School 19

School 20

Average

02

46

81

01

21

41

61

8N

um

ber

of

sec t

ion

s

0 1 2 3 4 5 6 7 8 9Number of faculty

Faculty load: annual sections x number of faculty teaching

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Faculty load also varies in terms of time and

students

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• The figure does not

adjust for time spent in

preparing the classes or

spent in elective courses

• Most schools stay close

to the mean

School 1

School 2

cSchool 3

School 4 School 5

School 6School 7

School 8

School 9

School 10

School 12

School 13

School 14

School 16

School 17

Schools 11 and 18 School 19

School 20

Average

20

00

25

00

30

00

35

00

400

04

50

0M

inu

tes

per

f acu

lty

( acro

ssal

ls e

cti

on

s)

50 100 150 200 250 300Students per faculty (across all sections)

Faculty load per time and per students Higher load

Lower load

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CONTENT

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What we did…

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• Characterize courses in multiple dimensions:

• Overall framing: • HBS classic (Porter, Ghemawat, Collis/Montgomery, Rivkin)

• Value-based strategy (Brandenburger/Stuart)

• Resource-based view (RBV) (Barney, Wernerfelt, Prahalad/Hamel)

• Economics (Spulber, Besanko, Cabral, Saloner)

• Behavioral strategy (Gavetti, Fang)

• Topic analysis:• Coverage of topic per school (extensive margin)

• Time intensity per topic (intensive margin)

• Clustering/Grouping of schools based on topic coverage

• Quantitative and formal orientation:• Use of numerical evidence to sustain case-discussion

• Use of formal models to explain concepts

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Five frameworks are often used to teach strategy

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• Classic Strategy

• E.g.: Porter, Ghemawat, Collis/Montgomery, Rivkin

• Value-based strategy

• E.g.: Brandenburger/Stuart

• Resource-based view

• E.g.: Barney, Wernerfelt, Prahalad/Hamel

• Economics

• E.g.: Spulber, Besanko, Cabral, Saloner

• Behavioral strategy

• E.g.: Gavetti, Fang

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Most schools follow a mix of approaches

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Classic

Strategy

Value-based

strategyRBV Economics

Behavioral

Strategy

School 1 ✔✔ ✔✔

School 2 ✔✔ ✔✔ ✔

School 3 ✔✔✔ ✔✔

School 4 ✔✔✔ ✔✔ ✔

School 5 ✔✔✔ ✔

School 6 ✔✔ ✔✔

School 7 ✔✔ ✔✔

School 8 ✔✔✔

School 9 ✔ ✔ ✔✔✔

School 10 ✔✔ ✔✔✔

School 11 ✔ ✔ ✔✔✔

School 12 ✔✔ ✔✔

School 13 ✔✔ ✔ ✔✔

School 14 ✔✔ ✔✔ ✔

School 15 - - - - -

School 16 ✔✔ ✔✔ ✔

School 17 ✔✔ ✔✔

School 18 ✔✔ ✔✔

School 19 ✔ ✔✔

School 20 ✔✔ ✔✔✔ ✔✔

• Checkmarks mean the intensity of each

approach within the course syllabus

• Value-based strategy is the most common

framework

• Often it supersedes traditional classic HBS

view

• Industry analysis is minimized in at least 2

schools

• 4 schools use economics to complement and

support Classic HBS and Value-based strategy

• Collis/Montgomery is still predominant framing

for corporate strategy

• Strategy is often a “stand-alone” course that

discusses its own concepts without necessarily

connecting them to a larger set of fields in

management (rather than “integrative” course

that connects management fields)

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Classifying course sessions into strategy topics

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• Started with common labels in syllabi

• Numerous trials of applying classification

to existing syllabi

• Consulted with colleagues and received

feedback

• Harmonized a refined version of the

labels

• Two independent raters evaluated each

syllabus and classified sections

according to their main topics

• Differences between classifications

resolved through discussions and

interviews

• Value Based Strategy

• Industry Analysis/External Forces

• Resources/Dynamic Capabilities

• Product Differentiation

• Cost Advantage

• Alignment

• Network Advantages

• Innovation/Technology

• Entrepreneurship

• Non-Market Strategy

• Strategy Implementation

• Strategy Design

• Sustainability/Change/Growth

• Competitive Dynamics

• Horizontal Diversification

• Vertical Diversification

• Geographic Diversification

• Structure/Governance

• Incentive Systems

• Microeconomics

• Contextually-driven topics

• Others- Introduction/summary/exam/presentation

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The most popular topics are still within competitive

strategy

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• Graph shows the count of schools

with at least one session about the

topic

• Industry analysis, cost advantage and

product differentiation still most

common topics

• Large divergence on how to

incorporate topics such as

ecosystems, platforms, networks

• Innovation/Technology topics mostly

covered through phenomenon-driven

sessions

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The most time is spent on topics within competitive

strategy

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• Course time is, on average, divided

across ~10 topics

• Competitive dynamics is skewed by

one school that uses 50% of the

course to cover the topic

• Several “sub-topics”: Entry,

Exit, Price Wars, etc.

• Nonetheless, 12 schools still

cover competitive dynamics

• Schools diversify in terms of other

topics

• This figure assumes that sessions

with multiple “core” topics divide their

time equally across topics

12.7

11.6

8.4

7.7

6.9

6.6

6.3

6.1

5.9

4.2

3.6

2.7

2.4

2.3

2.2

2.1

2.1

1.8

1.7

1.1

0.9

0.8

0 5 10 15

% of course time (w/o considering introduction/evaluation/simulations)

Competitive DynamicsIndustry Analysis

Product DifferentiationContextual Topics

Cost AdvantageValue-Based Strategy

Vertical DiversificationHorizontal Diversification

Sustainability/ Change/ GrowthStrategy Design

Network AdvantagesInnovation/Technology

MicroeconomicsResources/CapabilitiesGovernance Structure

OtherGeographic Diversification

AlignmentStrategy Implementation

EntrepreneurshipNon-Market Strategy

Incentive Systems

Average % of time spent on topic

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Schools vary in their pace in covering topics

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School 1

School 2

School 3School 4School 5

School 6

School 7

School 8 School 9

School 10

School 11

School 12

School 13

School 14

School 15

School 16

School 17

School 18

School 19 School 20

Average

60

100

140

180

220

Se s

sion

length

( min

ute

s)

1 1.5 2 2.5 3

Number of sessions for the average covered topic

Average pace per topic

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Schools vary in their orientation when covering

topics

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School 9

School 11

School 19School 16

School 7

School 18

School 14

School 6

School 2School 13

School 1

School 20

School 17

School 12

School 8

School 3

School 5

School 10

School 4

Fo

rma

l O

rie

nta

tio

n(u

se

of

form

al m

od

els

)

Quantitative orientation(e.g. use of financial indicators, support arguments with data)

HIGH

HIGHLOW

LOW

• Schools with

economics-trained

faculty favor a higher

formal orientation

• No clear driver of

quantitative

orientation

• Anecdotal evidence

that faculty would like

more quantitatively-

driven cases

• Two schools

reported

supplying their

own quantitative

materials

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Similarity of topics across strategy courses: high

overall

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• Schools 9, 10, and 14 are the most

dissimilar for different reasons:

• School 9’s course is heavily

econ-based focused on

competitive dynamics and game

theory

• School 10’s course is heavily

econ-based and a mix of

microeconomics/IO and strategy

• School 14’s course emphasizes

strategy design and

implementation

• Formal models about product

differentiation, cost advantage, and

competitive dynamics appear in a

few schools where the faculty’s

background is mostly economics

Measure: pairwise Euclidean similarity comparing vectors of share of course time spent on each topic.

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Clusters: classic-strategy schools (14 + 3) and

economics-based strategy schools (3)

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• 14 schools aligned around

classic HBS and value-based

strategy (and RBV)

• 3 classic but with different

paradigms

• School 14: innovative pedagogy,

focus on strategy design and

implementation

• School 8: strong formal

orientation and 100% value-

based

• School 20: blend of many

strategy ideas, with some

emphasis on value-based and

economics

• 3 heavily econ-driven schools

(schools 9, 10, 11)

School 9School 11School 10School 19

School 2School 4School 6

School 15School 3School 5

School 18School 1School 7

School 13School 16School 17School 12School 20

School 8School 14

0 .1 .2 .3 .4 .5Euclidean dissimilarity measure

(Dis)similarity measure: EuclidenClustering method: weighted average linkage

Hierarchical clustering of schools by composition of course

(similarity in share of course dedicated to topics)

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Summary of Content

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• Although there are not striking differences in topics covered

across schools, there are important differences in depth

• Strategy is often a stand-alone, self-contained, course without

clear connection with other MBA courses

• Most schools distribute time across topics relatively evenly, and

the average topic is covered by something between 1 and 2

sessions for all but one school

• Schools vary in terms of their pace

• Sprint through topics x deepen topics

• Few schools go through formal models

• More are starting to emphasize quantitative debates (e.g. reliance

on financial indicators)

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PEDAGOGY

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Traditional cases are most popular course material

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197

165

56

53

48

33

11

8

0 50 100 150 200Number of pieces

Case

General Media

Book chapter

Specialized Media

Note

Other/Undefined

Research Article

Book

Pooled number of readings in syllabi (across 20 schools)

• Cases are not

upgraded often. • Average case

year: 2008

• Non-case materials

are upgraded more

often• Average year of

news articles:

2012

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However, the intensity of case-use varies across

schools

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School 1

Schools 3, 6, and 14

School 4

School 5

School 8

School 9

School 10

School 11

School 12

Schools 2, 7, and 13

School 15

Schools 16 and 18

School 17

School 19

School 20

Average

0. 5

11

. 52

2. 5

Cas

es

per

wee

k

4 5 6 7 8 9 10 11 12 13 14Course length in weeks

Intensity of case use by course length

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Schools are increasingly using press articles as

“mini-cases”

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• Why?

• Complement/update

an existing case

• Substitute for a case

• Articles are often

used to cover topics

without good cases,

such as platforms,

ecosystems, network

effects

• Articles as examples

of concepts8.3

81

0

1

0

28

29

0

0

1

9

2

0

1

0

0

8

0

5

0

1

0 20 40 60 80Number of pieces

AverageSchool 20School 19School 18School 17School 16School 15School 14School 13School 12School 11School 10

School 9School 8School 7School 6School 5School 4School 3School 2School 1

Numbers of articles from general media in syllabus

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Cases and news articles (case-like materials)

constitute most of the teaching materials

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Conceptual material:

• No textbook is widely accepted

• Apart from Brandenburger (most popular

book), most books are textbooks in the

economics of organizations (e.g.

Besanko et al)

• Most popular source of conceptual

materials is magazine articles (e.g. HBR,

MIT Sloan)

• “What is strategy” by Porter is most

popular article

• Increasing number of school-specific

material

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On average, sessions are a mix of case-based

discussion and conceptual exposition

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• Lower case-led discussion

associated with either

formal orientation (3

schools) or longer class

sessions (2 schools)

• We did not have information

about school 15

• How many conceptual

slides per session?• 13 slides on average

• Large variation:

• Some schools with 0-

10; other schools with

20+ slides

61.8947

50

83

75

50

75

75

50

50

70

50

50

25

50

50

90

100

83

50

50

0 20 40 60 80 100% of class

AverageSchool 20School 19School 18School 17School 16School 15School 14School 13School 12School 11School 10

School 9School 8School 7School 6School 5School 4School 3School 2School 1

% case discussion in typical session

% of class minutes

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Grading and pedagogical tools vary across schools

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• Large variation in what is graded

• On average, 5 evaluation formats (max 7, min 2)

• Large diversity of exam formats

• Case-based exams are seldom used. Combination of small vignettes and conceptual

questions in different formats (multiple choice, free response questions).

• On average, 24% of final grade is associated with groupwork (e.g. group projects, simulations)

• Only two schools do not have a team-work activity composing the final grade

• Majority of schools have some version of experiential learning

• Most common type of experiential learning: group projects

• Only 4 schools do not have a team project

• Six schools have simulation as pedagogical tool; five of these use it in the final grade

• On average, 8% of the sessions are not used for case-discussion or lectures (i.e. for simulations,

exams, and presentations).

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Summary of Pedagogy

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• Although case-led discussion is still the backbone of strategy classes,

there are three relevant trends

• Schools rely either on HBS cases or, more recently, on own cases

• Schools are using news articles in addition to and instead of traditional

cases in discussion-led sessions

• Most schools are using other tools to teach strategy, especially

experiential learning to illustrate strategy design and implementation

• Few schools rely intensively on case-method teaching

• Often, schools complement cases with

• Lectures to cover concepts

• “Mini-cases” (newspaper articles)

• Almost no exam is entirely case-based

• Team activities and/or experiential learning are used in ~70% of courses

and included in students’ grade

Page 38: MBA Core Strategy Course Analysis - Harvard Business School

Copyright © President & Fellows of Harvard College

MBA Core Strategy Course AnalysisJuan Alcacer, David Collis, Daniel Gross, Raffaella Sadun, Thomaz Teodorovicz