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NBER Working Papers and Publications
|July 2017||Multi Product Firms, Import Competition, and the Evolution of Firm-product Technical Efficiencies|
with Emmanuel Dhyne, Amil Petrin, Frederic Warzynski: w23637
We study how increased import competition affects the evolution of firm-product technical efficiencies in the small open economy of Belgium. We observe quarterly firm-product data at the 8-digit level on quantities sold and firm-level labor, capital, and intermediate inputs from 1997 to 2007, a period marked by stark declines in tariffs applied to Chinese goods. Using Diewert (1973) and Lau (1976) we show how to estimate firm-product quarterly technical efficiencies using a multi-product production (MPP) function that avoids using single-product (SP) production func- tion approximations to it. We find that a 0.01 increase in the import share leads to a 1.05% gain in technical efficiency. This elasticity translates into gains from com- petition over the sample period exceeding 1.2 billion e...
|March 2016||Rethinking Deindustrialization|
with Andrew B. Bernard, Frederic Warzynski: w22114
Manufacturing in high-income countries is on the decline and Denmark is no exception. Manufacturing employment and the number of firms have been shrinking as a share of the total and in absolute levels. This paper uses a rich linked employer-employee dataset to examine this decline from 1994 to 2007. We propose a different approach to analyze deindustrialization and generate a series of novel stylized facts about the evolution. While most of the decline can be attributed to firm exit and reduced employment at surviving manufacturers, we document that a non-negligible portion is due to firms switching industries, from manufacturing to services. We focus on this last group of firms before, during, and after their sector switch. Overall this is a group of small, highly productive, import inte...
Published: Andrew B. Bernard & Valerie Smeets & Frederic Warzynski, 2017. "Rethinking deindustrialization," Economic Policy, CEPR;CES;MSH, vol. 32(89), pages 5-38. citation courtesy of
|March 2011||Does Input Quality Drive Measured Differences in Firm Productivity?|
with Jeremy T. Fox: w16853
Firms in the same industry can differ in measured productivity by multiples of 3. Griliches (1957) suggests one explanation: the quality of inputs differs across firms. We add labor market history variables such as experience and firm and industry tenure, as well as general human capital measures such as schooling and sex. We also use the wage bill and worker fixed effects. We show adding human capital variables and the wage bill decreases the ratio of the 90th to 10th productivity quantiles from 3.27 to 2.68 across eight Danish manufacturing and service industries. The productivity dispersion decrease is roughly of the same order of magnitude as some competitive effects found in the literature, but input quality measures do not explain most productivity dispersion, despite economically la...
Published: Jeremy T. Fox & Valérie Smeets, 2011. "Does Input Quality Drive Measured Differences In Firm Productivity?," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 52(4), pages 961-989, November. citation courtesy of