The Effect of Economic Policy Uncertainty on Corporate Investment: Evidence from Companies Listed on the Tehran Stock Exchange

Document Type : Research Paper


1 Ph.D. Candidate, Department of Economics, Aligudarz Branch, Islamic Azad University, Aligudarz, Iran.

2 , Associate Prof., Department of Public Administration, Faculty of Management, Tehran University, Tehran, Iran.

3 Assistant Prof., Department of Economics, Arak Branch, Islamic Azad University, Arak, Iran.


Objective: Corporate investment in corporate financial theory is influenced by various factors, that are important in evaluating, identifying and determining the optimal level of investment of companies. Given the fact that firms often face a great deal of uncertainty about the timing, content, and potential effects of economic policy decisions, it is important to examine the implications of economic policy uncertainties. This article examines the effect of economic policy uncertainty on corporate investment in companies listed on the Tehran stock exchange during the period 2007-2020.
Methods: The studied model was estimated once with the entry of each of the variables of uncertainty resulting from inflation, interest rate, exchange rate, economic growth, monetary and fiscal policy. The uncertainty of each variable is calculated using by Hodrick-Prescott filtering. Then, the effect of economic policy uncertainty on corporate investment was investigated using GMM by introducing the composite index of economic policy uncertainty resulting from the analysis of the main components of the mentioned variables.
Results: The results showed that the effect of the combined index of economic policy uncertainty as well as all uncertainty variables on corporate investment is negative and significant. In addition, the results showed that monetary policy uncertainty had a greater impact on corporate investment than fiscal policy uncertainty.
Conclusion: Economic uncertainty, by disrupting the price system, directing liquidity to financial assets and reduces the inflow of liquidity into production, reduces corporate investment. In addition, the role of monetary policy stability is more prominent due to the major dependence of firms on banking resources.


Abaidoo, R. (2019). Corporate performance volatility and adverse macroeconomic conditions: A causal interaction perspective. Journal of Financial Economic Policy, 11(4), 533-547.
Abbas, A., Ahmed, E., Husain, F. (2019). Political and Economic Uncertainty and Investment Behaviour in Pakistan. The Pakistan Development Review, 58(3), 307-331.
Abel, A., Blanchard, O. (1986). Investment and sales: some empirical evidence. NBER Working Paper, 2050.
Abel, A.B. (1983). Optimal investment under uncertainty. The American Economic Review, 73, 228–233.
Akron, S., Demir, E., Díez-Esteban, J. M. & García-Gómez, C. D. (2020). Economic policy uncertainty and corporate investment: Evidence from the U.S. hospitality industry. Tourism Management, 77, 104019.
Alhassan, A. & Naka, A. (2020). Corporate future investments and stock liquidity: Evidence from emerging markets. International Review of Economics & Finance, 65, 69-83.
Arabmazar, A. & NazariGovar, S. (2012). The effect of inflation uncertainty on private investment in Iran. Journal of Iran’s economic essays, 18, 59-76.
Arellano, M., & Bond, S. (1991). Some tests of specification for panel data: Monte Carlo Evidence and an Application to Employment Equations. The Review of Economic Studies, 58 (2), 277-297.
Atella, V., Atzeni, G.E., Belvisi, P.L. (2003). Investment and exchange rate uncertainty. Journal of Policy Modeling, 25(8), 811-824.
Bai, C.-E., Liu, Q., Lu, J., Song, F.M. & Zhang, J. (2004). Corporate governance and market valuation in China. Journal of Comparative Economics, 32, 599–616.
Baltagi, B.H. (2008). Econometric analysis of panel data. Chichester: John Wiley & Sons Ltd.
Bond, S.R. & Cummins, J.G. (2004). Uncertainty and investment: an empirical investigation using data on analysts' profits forecasts. FEDS Working Paper, 2004-20.
Boyle, G. & Guthrie, G. (2003). Investment, uncertainty, and liquidity. Journal of Finance, 58. 2143-2166.
Brenner, M. J. & Schwartz, E.S. (1985). Evaluating natural resource investment. Evaluating Natural Resource Investments, 58, 135–157.
Caballero, R. J. (1991). On the sign of the investment—uncertainty relationship. The American Economic Review, 81, 279–288.
Caballero, R.J., Pindyck, R. S. (1996). Uncertainty, investment and industry evolution. International Economic Review, 37, 641–662.
Cao, H., Sun, P., & Guo, L. (2020). The Asymmetric Effect of Oil Price Uncertainty on Corporate Investment in China: Evidence From Listed Renewable Energy Companies. Frontiers in Energy Research, 8-47.
Chava, S. & Roberts, M.R. (2008). How does financing impact investment? The role of debt covenants. Journal of Finance, 63, 2085–2121.
Chen, J. & Chen, S. (2012). Investment-cash flow sensitivity cannot be a good measure of financial constraints: evidence from the time series. Journal of Financial Economics, 103, 393–410.
Choi, S., Lee, S., Choi, K., & Sun, K. A. (2019). Investment–cash flow sensitivities of restaurant firms: A moderating role of franchising. Tourism Economics, 24(5), 560–575.
Cleary, S., Povel, P., Raith, M. (2007). The u-shaped investment curve: Theory and evidence, Journal of Financial and Quantitative Analysis, 42(1), 1-40.
Duchin, R., Ozbas, O., Sensoy, B.A. (2010). Costly external finance, corporate investment, and the subprime mortgage credit crisis. Jounal of Financial Economics, 97, 418–435.
Forooghi, D. & Sadeghi, M. (2013). Relationships among Idiosyncratic Uncertainty, Managerial Flexibility and Capital Investment within the Companies Listed in Tehran Stock Exchange. Journal of Accounting Knowledge, 4(13), 29-52. (in Persian)
Ghosal, V. & Prakash L. (1995). Product market competition and the impact of price uncertainty on investment: Some evidence from U.S. manufacturing industries. International Finance Discussion Papers, 517, 1-19.
Guariglia, A. (2008). Internal financial constraints, external financial constraints, and investment choice: Evidence from a panel of UK firms. Journal of Banking & Finance, 32, 1795-1809.
Hartman, R. (1972). The Effects of price and cost uncertainty on investment. Journal of Economic Theory, 5, 258–266.
Henriques, I. & Sadorsky, P. (2011). The effect of oil price volatility on strategic investment. Energy Economics, 33(1), 79–87.
Jahankhani, A. & Kanani Amiri, M. (2006). Presentation of the Model to Determine the Capital Expenditures of Listed Companies in TSE Using Accounting Information. Business Strategies, 13(17), 57-86. (in Persian)
Jeong, B. (2002). Policy uncertainty and long-run investment and output across countries. International Economic Review, 43, 363–392.
Karimi, F. & Sadeghi, M. (2014). Domestic and foreign financial constraints and its relationship with investment of capital assets in companies listed on the Tehran Stock Exchange. Quarterly Financial Accounting, 4, 43-58. (in Persian)
Karimpour, A., Baradaran Hasanzadeh, R., Badavar Nahandi, Y. & Zeynali, M. (2017). A Pattern for Financial Constraint in Iranian Firms. Financial Research Journal, 19, 365-388. (in Persian)
Kato, K.H., Loewnstein, U., Tsay, W. (2002). Dividend policy, cash flow, and investment in Japan. Pacific-Basin Finance Journal, 10, 443– 473.
Kazerooni, S. A. & Dowlati, M. (2007). The Effect of Real Exchange Rate Uncertainty on Private Sector Investment (Case Study of Iran). Iranian Journal of Trade Studies, 45, 283-306. (in Persian)
Knight, F.H. (1921). Risk, uncertainty, and profit. Hart, Schaffner& Marx. Boston: Houghton Mifflin Company.
Leahy, J.V. & Whited, T.M. (1996). The effect of uncertainty on investment: some stylized facts. Journal of Money, Credit and Banking, 28, 7–27.
Maghyereh, A. & Abdoh, H. (2020). Asymmetric effects of oil price uncertainty on corporate investment. Energy Economics, 86, 104622.
Mansourfar, G., Joudi, S. & Poursoleiman, E. (2020). The Role of Internal and External Dimensions of Corporate Governance on the Relationship between Information Asymmetry and Investment Efficiency. Financial Research Journal, 22, 227-248.
(in Persian)
Pastor, L. & Veronesi, P. (2011). Political uncertainty and risk premia. NBER Working Paper, 17464.
Phan, D., Tran, V. & Nguyen, D. (2019). Crude oil price uncertainty and corporate investment: New global evidence. Energy Economics, 77, 54-65.
Pindyck, R.S. (1988). Irreversible investment, capacity choice and the value of the firm. Am. Econ. Rev., 78, 969–985.
Rahimi Baghi, A., ArabSalehi, M. & Barzani, M. V. (2019). Assessing the Systemic Risk in the Financial System of Iran using Granger Causality Network Method. Financial Research Journal, 21, 121-142. (in Persian)
Rahimi, E. & Horry, H. R. (2016). Effects of Exchange Rate and Inflation Uncertainty on Investment Opportunities of Companies listed in Tehran Stock Exchange. Journal of Accounting Knowledge, 6(23), 125-146. (in Persian)
Ranjbar, M. H., Fallah Shams, M. F. & Rezazadeh, R. (2018). Investigation the Un-Suretunetly of Exchange Rate On Index Price & Level of Investment In Tehran Stock Index (Using VAR and GARCH Models). Investment Science, 27, 79-102. (in Persian)
Rodrik, D. (1991). Policy uncertainty and private investment in developing countries. Journal of Development Economics, 36, 229–242.
Safdari, M. & Pourshahabi, F. (2013). Impact of Inflation Uncertainty on Iran Economic Growth (Using EGARCH and VECM methods (1971-2007)). Financial Monetary Economics, 29, 65-87. (in Persian)
Shahyakitash, M. N., Kazemi, M. & Amini, M. (2012). A Study of the Relationship between Ownership Structure and Performance of Listed Companies in Tehran Stock Exchange. Economic Journal, 12(9-10), 5-24. (in Persian)
Sun, W., Xiao, G., Yang, X. (2010). Effect of return to capital on investment ratio: a comparative analysis among China, US and Japan. World Economy, 6, 3–24.
Taghizadeh Khanqah, V., Badavar Nahandi, Y., Mottagi, A., & Taghizadeh, H. (2019). Presentation of Firm's Investment Efficiency Measurement Model inTehran Stock Exchange. Financial Research Journal, 21(2), 237-264. (in Persian)
Wang, Y., Chen, C. R., Huang, S. Y. (2014). Economic policy uncertainty and corporate investment: Evidence from China, Pacific-Basin Finance Journal, 26, 227–243.
Xie, F. (2009). Managerial flexibility, uncertainty, and corporate investment: the real option effect. International Review of Economics & Finance, 18, 643–655.
Zamanian, G., Jamaliemail, K., Kazemi, T., Karamshahi, B. (2014). The Impact of Oil Price Fluctuations on Investment Strategy in Companies Listed on the Tehran Stock Exchange, Accounting Reviews, 2, 53-68.