Returns to scale in a matching model: evidence from disaggregated panel data

Aki Kangasharju (), Jaakko Pehkonen and Sari Pekkala Kerr

Applied Economics, 2005, vol. 37, issue 1, 115-118

Abstract: The returns to scale in the matching function play an important role in models with endogenous search effort. Due to positive externalities, increasing returns to scale in matching can support high or low activity equilibrium in the labour market. In this study, we examine this issue using panel data from Finnish employment offices. The study finds that the results from the Cobb-Douglas and translog specification are qualitatively different. The CD specification of the matching function exhibits constant returns to scale. The translog specification, in turn, exhibits increasing returns to scale. The elasticity estimate for returns, using the preferred specification and minimum and maximum sample values for job seekers and vacancies, fall in the range of 1.1 to 1.6.

Date: 2005
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DOI: 10.1080/00036840412331313530

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