Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/107888
Authors: 
Stavropoulos, Spyridon
Burger, Martijn J.
Skuras, Dimitris
Year of Publication: 
2015
Series/Report no.: 
Tinbergen Institute Discussion Paper 15-014/VII
Abstract: 
A central question in strategic management is why some firms perform better than others. One approach to addressing this question empirically is to decompose the variance in firm-level profitability into firm, industry, location, and year components. Although it is well established that data sparseness in variance decomposition studies can lead to overestimating particular variance components, little attention has been paid to sample size requirements in strategic management studies that have examined the nature of differences in firm profitability. We conduct a meta-regression and variance decomposition study and conclude that the variation in the results from previous studies is driven—to a considerable extent—by the number of observations per group within a component. Based on these findings, we draw conclusions regarding the validity and reliability of previo us variance decomposition studies and provide implications for current debates in the strategic management literature.
Subjects: 
Firm profitability
variance decomposition
data sparseness
meta-analysis
JEL: 
C18
L16
R11
Document Type: 
Working Paper

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