Examining the Relationship between Productivity Growth and Stock Returns of Listed Companies in Tehran Stock Exchange

Authors
University of mazandaran
Abstract
Although productivity growth is of central importance in economics, its importance in finance remains largely uncharted. Productivity growth is one of the main factors affecting on stock returns that is less discussed. In this paper, the relationship between productivity growth and stock returns of Listed Companies in Tehran Stock Exchange are examined during the years of 2007 to 2012. Time series data are collected Seasonal and are examined by method of Panel Data by E-views software. The results indicate an duality in aggregate level and micro level, So that ,there is a significant negative relationship between market efficiency and productivity growth in aggregate level and a significant positive relationship between firm performance and its productivity growth. But the relationship between each of the company's efficiency and productivity growth at the aggregate level were not found.
Keywords

Akinlo A.E. (2006). Macroeconomic Factors and Total Factor Productivity in Sub-Saharan African Countries. International Research Journal of Finance and Economics. (1), PP. 62-79.
Bena J. & Garlappi L. (2012). Corporate Innovation and Returns. University of British Columbia. Working Paper.
Blundell R. Griffith R. & Reenen J.V.(1999). Market Share, Market Value and Innovation in a Panel of British Manufacturing Firms. Review of Economic Studies.66(3), 529–554.
Chun H. Kim J.W. & Morck R. (2013). Productivity Growth and Stock Returns: Firm- and Aggregate-Level Analyses. NBER Working Paper . No. 19462.
Chun H. Kim J.W. Morck R. & Yeung B. (2008). Creative Destruction and Firm-specific Performance Heterogeneity. Journal of Financial Economics. 89(1), 109–135.
Coe D.T. Helpman E. & Hoffmaister A.W. (2009). International R&D spillovers and institutions. European Economic Review. 53, 723-741.
Gârleanu N. Panageas S. & Yu J. (2012). Technological Growth and Asset Pricing. Journal of Finance. 67(4), 1265–1292.
Hall B.H. (1993). The Stock Market’s Valuation of R&D Investment During the 1980’s. American Economic Review. 83(2), 259–264.
Hirshleifer D. Kewei H. & Siew H.T. (2013). Accruals, Cash Flows, and Aggregate Stock Returns. Journal of Financial Economics. 91(3), 389–406.
Hyunbae C. & Nadiri M.I. (2008). Decomposing Productivity Growth in the U.S. Computer Industry. The Review of Economics and Statistics. 90: 174-180.
Imrohoroǧlu A. & Tűzel S. (2013). Firm Level Productivity, Risk, and Return.
Management Science. Forthcoming.
Jaffe A.(1986). Technological Opportunity and Spillovers of R&D: Evidence from Firms, Patents, Profits and Market Value. American Economic Review. 76(5), 984–1001.
Medda G. & Piga C. (2003). the Relationship between R&D and Productivity: A Treatment Effect Analysis. Department of Economics. Rensselaer Polytechnic Institute.
Megna P. & Klock M. (1993). The Impact of Intangible Capital on Tobin’s q in the Semiconductor Industry. American Economic Review. 83(2). 265–269.
Pakes A.(1985). On Patents, R&D, and the Stock Market Rate of Return. Journal of Political Economy. 93(2), 390–409.
Romer P.M. (1986). Increasing Returns and Long-run Growth. Journal of Political Economy. 94(5), 1002–1037.
Schoar A. (2002). Effects of Corporate Diversication on Productivity. Journal of Finance. 57:2379-403.
Ulku H. (2004). R&D, Innovation, and Economic Growth: An Empirical Analysis. IMF Working Paper .04/185, p. 3-39.