Why Are Concavity Conditions Not Satisfied in the Cost Function? The Case of Japanese Manufacturing Firms during the Bubble Period
AbstractThis paper examines empirically some of the reasons why Japanese manufacturing firms frequently fail to satisfy concavity conditions of the cost function. We focus on the "bubble period" in the 1980s when land was in great demand for reasons related to both production and speculation, and land prices soared. By estimating the translog cost function with land as one of production inputs for manufacturing firms, we find that violation of concavity resulted from borrowing constraints and large adjustments of employment. We also demonstrate that elasticities of substitution between land and other inputs and input demand with respect to land rental prices are both estimated with large biases if the firms violating concavity are not excluded from the analysis.
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Bibliographic InfoPaper provided by Institute of Social and Economic Research, Osaka University in its series ISER Discussion Paper with number 0719.
Date of creation: Sep 2008
Date of revision:
Other versions of this item:
- Kazuo Ogawa, 2011. "Why Are Concavity Conditions Not Satisfied in the Cost Function? The Case of Japanese Manufacturing Firms during the Bubble Period," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 73(4), pages 556-580, 08.
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- Chew Chua & Hsein Kew & Jongsay Yong, 2005. "Airline Code-share Alliances and Costs: Imposing Concavity on Translog Cost Function Estimation," Review of Industrial Organization, Springer, vol. 26(4), pages 461-487, 06.
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- Christensen, Laurits R & Jorgenson, Dale W & Lau, Lawrence J, 1973. "Transcendental Logarithmic Production Frontiers," The Review of Economics and Statistics, MIT Press, vol. 55(1), pages 28-45, February.
- Ogawa, K. & Suzuki, K., 1996.
"Land Value and Corporate Investment: Evidence from Japanese Panel Data,"
ISER Discussion Paper
0408, Institute of Social and Economic Research, Osaka University.
- Ogawa, Kazuo & Suzuki, Kazuyuki, 1998. "Land Value and Corporate Investment: Evidence from Japanese Panel Data," Journal of the Japanese and International Economies, Elsevier, vol. 12(3), pages 232-249, September.
- Ogawa, K. & Suzuki, K., 1995. "Land Value and Corporate Investment: Evidence from Japanese Panel Data," ISER Discussion Paper 0373, Institute of Social and Economic Research, Osaka University.
- Ogawa, K. & Suzuki K., 1996. "Demand for Bank Loans Under Borrowing Constraints: A Panel Study of Japanese Firm Data," ISER Discussion Paper 0409, Institute of Social and Economic Research, Osaka University.
- Ryan, David L. & Wales, Terence J., 2000. "Imposing local concavity in the translog and generalized Leontief cost functions," Economics Letters, Elsevier, vol. 67(3), pages 253-260, June.
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