Arbeitspapier
Selection bias in innovation studies: A simple test
The study of the innovative output of firms often relies on a count of patents filed at one single office of reference such as the European Patent Office (EPO). Yet, not all firms file their patents at the EPO, raising the specter of a selection bias. Using a novel dataset of the whole population of patents by Belgian firms, we show that the single-office count results in a selection bias that affects econometric estimates of innovation production functions. We propose a methodology to evaluate whether estimates that rely on the single-office count are affected by a selection bias.
- Language
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Englisch
- Bibliographic citation
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Series: ZEW Discussion Papers ; No. 12-012
- Classification
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Wirtschaft
Innovation and Invention: Processes and Incentives
Methodological Issues: General
Model Evaluation, Validation, and Selection
Methodology for Collecting, Estimating, and Organizing Microeconomic Data; Data Access
- Subject
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Innovation production function
patent
R&D
selection bias
- Event
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Geistige Schöpfung
- (who)
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De Rassenfosse, Gaétan
Wastyn, Annelies
- Event
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Veröffentlichung
- (who)
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Zentrum für Europäische Wirtschaftsforschung (ZEW)
- (where)
-
Mannheim
- (when)
-
2012
- Handle
- Last update
-
10.03.2025, 11:43 AM CET
Data provider
This object is provided by:
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. If you have any questions about the object, please contact the data provider.
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. If you have any questions about the object, please contact the data provider.
Object type
- Arbeitspapier
Associated
- De Rassenfosse, Gaétan
- Wastyn, Annelies
- Zentrum für Europäische Wirtschaftsforschung (ZEW)
Time of origin
- 2012
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Selection bias in innovation studies : a simple test
Simple Tests for Selection Bias: Learning More from Instrumental Variables
A simple parametric model selection test
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The Beep-Speed Illusion Cannot Be Explained With a Simple Selection Bias
Testing for Selection Bias
Simple Tests for Selection: Learning More from Instrumental Variables
Selection bias in historical housing data
Bias-adjusted treatment effects under equal selection
Equilibrium selection and simple signaling games
Understanding neighbourhood effects: Selection bias and residential mobility
Currency Crises, Capital Account Liberalization, and Selection Bias
Selection bias in innovation studies : a simple test
Simple Tests for Selection Bias: Learning More from Instrumental Variables
A simple parametric model selection test
A simple parametric model selection test
The Beep-Speed Illusion Cannot Be Explained With a Simple Selection Bias
Testing for Selection Bias
Simple Tests for Selection: Learning More from Instrumental Variables
Selection bias in historical housing data
Bias-adjusted treatment effects under equal selection
Equilibrium selection and simple signaling games
Understanding neighbourhood effects: Selection bias and residential mobility