This study empirically examines the relationship between knowledge capital and performance heterogeneity at the firm level. The model is based on a knowledge production function comprising of four interdependent equations linking innovativeness to innovation input, innovation output and productivity. The empirical part is based on Korean firm level innovation data. The model is estimated using advanced econometric methods. We investigate whether innovation is a significant and contributing determinant of performance heterogeneity among firms. In examining the relationship between innovation and productivity we correct for selectivity and simultaneity biases. The results show that there is a two-way causal relationship between knowledge capital and labor productivity. Firm-specific effects positively contribute to innovation output but they are negatively related to productivity. Industry heterogeneity does not affect innovation output or productivity.
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Paper provided by The Ratio Institute in its series Ratio Working Papers with number
90.
Length: 35 pages Date of creation: 25 Apr 2006 Date of revision: Handle: RePEc:hhs:ratioi:0090
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References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
Cohen, Wesley M & Klepper, Steven, 1996.
"A Reprise of Size and R&D,"
Economic Journal,
Royal Economic Society, vol. 106(437), pages 925-51, July.
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