Oil Price Uncertainty in the Iranian Economy


1 Department of Economics, Alzahra University, Tehran, Iran (Corresponding Author: elaheh_asadi@alzahra.ac.ir).

2 Department of Economics, Alzahra University, Tehran, Iran (fbazazan@alzahra.ac.ir).

3 Department of Economics, Alzahra University, Tehran, Iran (hmousavi@alzahra.ac.ir).



he relationship between the price of oil and the level of economic activity is a fundamental empirical issue in macroeconomics. In this research, by using a multivariate GARCH-in-Mean VAR, we try to investigate direct effects of uncertainty of oil price on macroeconomics of Iran by using annually data from 1965 to 2013.Results show that uncertainty about oil prices had a negative and significant effect on real output in our sample.


Aguerrevere, F. (2009). Real Options, Product Market Competition and Asset Returns. Journal of Finance, 64, 957–983.
Bernanke, B. S. (1983). Irreversibility, Uncertainty, and Cyclical Investment. Quarterly Journal of Economics, 98, 85–106.
Bernanke, B. S., Gertler, M., & Watson, M. (1997). Systematic Monetary Policy and the Effects of Oil Price Shocks. Brookings Papers on Economic Activity, 1, 91–142.
Blanchard, O. J., & Gali, J. (2010). The Macroeconomic Effects of Oil Price Shocks: Why are the 2000s So Different from the 1970s.In Gali, J. & Gerlter, M. (Eds.), International Dimensions of Monetary Policy (373-421(. Chicago: University of Chicago Press.
Blanchard, O. J., & Riggi, M. (2009). Why Are the 2000s So Different from the 1970s? A Structural Interpretation of Changes in the Macroeconomic Effects of Oil Prices. Cambridge Working Paper, 15467, NBER, Retrieved from
Bollerslev, T. (1986). Generalized Autoregressive Conditional Heteroscedasticity. Journal of Econometrics, 31, 307–327.
Brennan, M. (1990). Latent Assets. Journal of Finance, 45, 709–730.
Brennan, M., & Schwartz, E. (1985). Evaluating Natural Resource Investment. Journal of Business, 58, 1135–1157.
Edelstein, P., & Kilian, L. (2009). How Sensitive Are Consumer Expenditures to Retail Energy Prices. Journal of Monetary Economics, 56, 766–779.
Elder, J. (1995). Macroeconomic and Financial Effects of Monetary Policy and Monetary Policy Uncertainty (Doctoral Dissertation, University of Virginia, Virginia). Retrieved from
Elder, J. (2004). Another Perspective on the Effects of Inflation Volatility. Journal of Money, Credit, and Banking, 36, 911–928.
Elder, J., & Serletis, A. (2010). Oil Price Uncertainty. Journal of Money, Credit and Banking, 42, 1137-1159.
Engle, R. F. (1982). Autoregressive Conditional Heteroscedasticity with Estimates of the Variance of UK Inflation. Econometrica, 50(4), 987–1008.
Engle, R. F., Lilien, D. M., & Robins, R. P. (1987). Estimating Time Varying Risk Permian the Term Structure: The ARCH-M Model. Econometrica, 55(2), 391-407.
Engle, R. F., & Kenneth, F. K. (1995).Multivariate Simultaneous Generalized ARCH. Econometric Theory, 11, 122–150.
Finn, M. G. (2000). Perfect Competition and the Effects of Energy Price Increases on Economic Activity. Journal of Money, Credit, and Banking, 32, 400–416.
Gibson, R., & Schwartz, E. S. (1990).Stochastic Convenience Yield and the Pricing of Oil Contingent Claims. Journal of Finance, 45, 959–976.
Grier, K. B., Henry, O. T., Olekalns, N., & Shields, K. (2004). The Asymmetric Effects of Uncertainty on Inflation and Output Growth. Journal of Applied Econometrics, 19, 551–565.
Hamilton, J. D. (2011). Nonlinearities and the Macroeconomic Effects of Oil Prices. Macroeconomics Dynamics, 15(Supplement 3), 364-378.
---------- (2009). Causes and Consequences of the Oil Shock of 2007–08. Brookings Papers on Economic Activity, Retrieved from
---------- (1988). A Neoclassical Model of Unemployment and the Business Cycle. Journal of Political Economy, 96, 593–617.
Henry, C. (1974). Investment Decisions under Uncertainty: The Irreversibility Effect. American Economic Review, 64, 1006–1012.
Herrera, A. M., Lagalo, L. G., & Wada, T. (2011). Oil Price Shocks and Industrial Production: Is the Relationship Linear. Macroeconomic Dynamics, 15 (Supplement 3), 472-497.
Kilian, L. (2009a). Not All Oil Price Shocks Are Alike: Disentangling Demand and Supply Shocks in the Crude Oil Market. American Economics Review, 99, 1053–1069.
---------- (2009b). Comment on Causes and Consequences of the Oil Shock of 2007–08. Brookings Papers on Economic Activity, 1, 267–278.
---------- (2008). The Economic Effects of Energy Price Shocks. Journal of Economic Literature, 46, 871–909.
Kilian, L., & Vigfusson, R. J. (2011a). Nonlinearities in the Oil Price-Output Relationship. Macroeconomic Dynamics, 15(Supplement), 337–363.
---------- (2011b). Are the Responses of the U.S. Economy Asymmetric in Energy Price Increases and Decreases. Quantitative Economics, 2, 419–453.
Kim, I., & Loungani, P. (1992). The Role of Energy in Real Business Cycle Models. Journal of Monetary Economics, 29, 173–189.
Lee, K., Shawn N., & Ronald A. R. (1995). Oil Shocks and the Macroeconomy: The Role of Price Variability. The Energy Journal, 16, 39–56.
Majd, S., & Pindyck, R. S. (1987). Time to Build, Option Value, and Investment Decisions. Journal of Financial Economics, 18, 7–27.
Mork, K. A. (1989). Oil and the Macroeconomy When Prices Go Up and Down: An Extension of Hamilton’s Results. Journal of Political Economy, 91, 740–744.
Pagan, A. (1984). Econometric Issues in the Analysis of Regressions with Generated Regressors. International Economic Review, 25, 221–247.
Rahman, S., & Serletis, A. (2012). Oil Price Uncertainty and the Canadian Economy: Evidence from a VARMA, GARCH-In-Mean, Asymmetric BEKK Model. Energy Economics, 34(2), 603-610.
---------- (2011). The Asymmetric Effects of Oil Price Shocks. Macroeconomic Dynamics, 15(S3), 437-471.
Rotemberg, J. J., & Woodford, M. (1996). Imperfect Competition and the Effects of Energy Price Increases on Economic Activity. Journal of Money, Credit, and Banking, 28, 549–577.
Rubin, J. & Buchanan, P. (2008). What’s the Real Cause of the Global Recession. CIBC World Markets Report, Retrieved from
Samadi, A., Hadian, E., & Jafari, M. (2013). Effect of Permanent and Transitory Volatility of Oil Prices on Investment, Output and Unemployment in the Economy of Iran. Journal of Iranian Energy Economics, 2(7), 75-101.
Shields, K., Olekalns, N., Henry, Ó. T., & Brooks, C. (2005). Measuring the Response of Macroeconomic Uncertainty to Shocks. The Review of Economics and Statistics, 87(2), 362 - 370.
Triantis, A. J., & Hodder, J. E. (1990).Valuing Flexibility as a Complex Option. Journal of Finance, 45, 549–66.