期刊名称：International Business & Economics Research Journal
印刷版ISSN：1535-0754
电子版ISSN：2157-9393
出版年度：2005
卷号：4
期号：10
语种：English
出版社：The Clute Institute for Academic Research
摘要：The purpose of this study is to investigate the relationship between the profitability of the firm and its R&D expenditures. We separate R&D expenditures in two main categories, R&D that focuses on the product differentiation and R&D that concerns improvements in production process. The latter leads to more efficient production, which can be measured by labour productivity. We estimate our model using cross section analysis and test the significance of each one of rhe R&D expenditures in firms profitability. Our model was applied to the Greek chemical industry, for a data set of 124 enterprises, in two distinct years, 1991 and 2001. Our findings support that the role of productivity is growing within time.
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