350 likes | 1.62k Views
Case Study Research. Outline. What is a case?Why case study research?Designing case studiesExample 1: changes in the spatial organization of high growth start-upsExample 2: the decline of the Cambridgeshire high-tech clusterSummary. Case Study Research. What is a case?. Case Study Research. What is a case?.
E N D
1. Case Study Research Case Study ResearchManufacturing and Technology ManagementResearch Methodology Workshop 2008 Dr Erik Stam
University of Cambridge 12.15-13.15 hrs, 26 March 2008
Before:
- Working with industry
After:
- data analysis / survey
Interviewing
Background: economics (quantitative analysis of secondary data: econometrics), human geography (quantitative analysis of...; surveys)12.15-13.15 hrs, 26 March 2008
Before:
- Working with industry
After:
- data analysis / survey
Interviewing
Background: economics (quantitative analysis of secondary data: econometrics), human geography (quantitative analysis of...; surveys)
2. Case Study Research Outline What is a case?
Why case study research?
Designing case studies
Example 1: changes in the spatial organization of high growth start-ups
Example 2: the decline of the Cambridgeshire high-tech cluster
Summary
3. Case Study Research What is a case?
4. Case Study Research What is a case? A person: ….
A site: an organization – a country
An artefact: technology, product
Units of analysis in case studies:
Events, activities
5. Case Study Research A case study is an empirical enquiry that: Investigates a contemporary phenomenon within its real-life context; when
the boundaries between phenomenon and context are not clearly evident; and
multiple sources of evidence are used (Yin 2003:13-14).
6. Case Study Research Outline What is a case?
Why case study research?
Designing case studies
Example 1: changes in the spatial organization of high growth start-ups
Example 2: the decline of the Cambridgeshire high-tech cluster
Summary
7. Case Study Research Why case study research? Emphasis on (societal, historical) context
Trying to reach a full explanation of a phenomenon within a unit of analysis
Interpret events, uncovering processes (Mohr 1982)
‘how’ and ‘why’ questions
Problem solving: closeness to practitioners (<-> abstract variables in much quantitative research)
Working with Industry
8. Case Study Research Why case study research? Rule of thumb: more variables than cases (<-> survey research: more cases than variables)
Relevant mechanisms, variables are not yet clear
9. Case Study Research Why case study research? Three important uses:
Motivation of research (falsify theories)
Inspiration for new ideas (theory building)
Illustration: concrete examples of theoretical constructs, show how the causal relationships work
e.g. “dynamic capabilities”: Cisco (Mayer & Kenney 2004); IDEO (Hargadon & Sutton 1997)
10. Case Study Research Accusation:‘Case study research is a “convenience” research strategy’ ‘… this study used the case study-method because of the complexity of the phenomenon studied. We did in-depth interviews with key actors in the firm.’
‘Not much is known about X, hence we engage in theory building with case study research’
11. Case Study Research Three types of case study research
12. Case Study Research Theory building (Eisenhardt 1989) unchartered waters, research as a voyage of discovery
“grounded theory”: iterations between observations and emerging theory (Strauss & Corbin 1990)
13. Case Study Research Theory testing (Yin 2003) Social experiment
internal (causal connections) and
external validity (generalisability: stat-anal)
reliability (inter-subjectivity; protocols)
construct validity (operationalisation of concepts)
14. Case Study Research Problem solving (Van de Ven 2007) Practical problem central: engage with stakeholders
Working with Industry & Policy
15. Case Study Research
16. Case Study Research
17. Case Study Research Research in practice
18. Case Study Research Outline What is a case?
Why case study research?
Designing case studies
Example 1: changes in the spatial organization of high growth start-ups
Example 2: the decline of the Cambridgeshire high-tech cluster
Summary
19. Case Study Research Designing case studies How many cases?
1 (Dyer & Wilkins 1991): Talking pig (exceptional case)
Multiple (Eisenhardt 1989=4-10) Phineas Gage – Talking PigPhineas Gage – Talking Pig
20. Case Study Research Designing case studies Sampling:
Statistical generalization (cases are representative for a wider population: sample -> population)
Analytical generalization (adequacy of theoretical inferences): replication logic of sampling (multiple case studies)
Select contrasting cases (independent/dependent variables): counterfactual
Select similar cases: saturation
21. Case Study Research Accusation: ‘Case study research is unscientific because of limited generalizability’ Analytical generalization, not statistical generalization
Much statistical generalizations are still no universal generalizations (research done in the US (biotech), does not necessarily apply to Germany … (business services) )Analytical generalization, not statistical generalization
Much statistical generalizations are still no universal generalizations (research done in the US (biotech), does not necessarily apply to Germany … (business services) )
22. Case Study Research Designing case studies Timeframe:
Retrospective:
+: select on the dependent variable
+: compress time (history)
Longitudinal:
+: no ‘survival’ bias
+: measure the effect of designed interventions
23. Case Study Research Designing case studies Qualitative, quantitative data:
Triangulation in method
N: survey (>40) – semi-structured interviews (10-40)– unstructured interviews (1-10) – participant observation (1)
24. Case Study Research Outline What is a case?
Why case study research?
Designing case studies
Example 1: changes in the spatial organization of high growth start-ups
Example 2: the decline of the Cambridgeshire high-tech cluster
Summary
25. Case Study Research
26. Case Study Research Development of the spatial organizationfirm B
27. Case Study Research Explaining changes in the spatial organization of high-growth start-ups (Stam 2007) No (complete) theory: theory testing
Initial quantitative survey to explore the field
Theoretical sampling:
only 8 high-growth start-ups (defined as…) that moved their headquarters out of the region of origin
Matched pairs with non-moved hgsu, and with non-growth su
...in the end: 33 cases
Semi-structured interviews, retrospective life course analysis of all (128) locational events
…
28. Case Study Research Outline What is a case?
Why case study research?
Designing case studies
Example 1: changes in the spatial organization of high growth start-ups
Example 2: the decline of the Cambridgeshire high-tech cluster
Summary
29. Case Study Research Cambridgeshire high-tech cluster Cambridge:
highest nr of patents per capita (80.8) in the UK (13.7 / 10000 inh)
Highest % of product innovating firms (39.7) in the UK (22%)
Highest vc invested per capita in EuropeCambridge:
highest nr of patents per capita (80.8) in the UK (13.7 / 10000 inh)
Highest % of product innovating firms (39.7) in the UK (22%)
Highest vc invested per capita in Europe
30. Case Study Research The decline of the Cambridgeshire high-tech cluster (Stam & Garnsey 2008) Emphasis on quantitative data (employment, establishments, patents)
Longitudinal: 1987-2006
Theory testing:
industry life cycle theory
ecological carrying capacity theory
Need for additional qualitative data to uncover the causal mechanisms
31. Case Study Research Outline What is a case?
Why case study research?
Designing case studies
Example 1: changes in the spatial organization of high growth start-ups
Example 2: the decline of the Cambridgeshire high-tech cluster
Summary
32. Case Study Research Summary All research includes cases, but not everything is case study research
Focus on context: uniqueness + analytical generalization
3 types: theory building, theory testing, problem solving
Design choices: nr of cases, timeframe, type of data
33. Case Study Research References Dyer, W.G. and Wilkins, A.L. (1991) Better Stories, Not Better Constructs, to Generate Better Theory: A Rejoinder to Eisenhardt, Academy of Management Review 16(3): 613-619.
Eisenhardt, K.M. (1989) Building Theories from Case Study Research, Academy of Management Review 14(4): 532-550.
Eisenhardt, K.M. (1991) Better Stories and Better Constructs: The Case for Rigor and Comparative Logic, Academy of Management Review 16(3): 620-627.
Mohr, L. (1982) Explaining organizational behaviour. Jossey-Bass: San Francisco.
Stam, E. (2007) Why butterflies don’t leave. Locational behavior of entrepreneurial firms, Economic Geography, 83.1, 27-50.
Stam, E. and Garnsey, E. (2008) Limits to cluster growth, Work in progress…
Strauss, A. and Corbin, J. (1990) Basics of qualitative research: grounded theory procedures and techniques. Sage: London.
Van de Ven, A. (2007) Engaged Scholarship. A guide for organizational and social research. Oxford University Press: Oxford.
Yin, R. (2003) Case Study Research. Design and Methods. 3rd edition. Sage: London.