عنوان مقاله [English]
In monetary theories, the interest rate is the link between financial conditions and the rate of physical capital accumulation. In Iran, this rate is determined normatively. The question is - has this method of determining interest rates worked properly or not? The purpose is to investigate the optimality of policymaker behavior in determining bank interest rates by explaining a multi-objective linear optimization model. For this purpose, first the components of the model including target functions (income and money supply) and constraints (private consumption, government spending and inflation) are estimated by ARDL model, based on data from 1358-1397. Then the optimization model for all years of the period 1396-1387 has been solved using parametric technique. Comparing the values obtained from solving the model with the real values resulting from the policies shows: 1- The bank interest rate set by the policy maker during the period is not optimal and in achieving the maximum policy goals within the capacity 2. In an optimal structure, there is a positive relationship between real bank interest rates greater than zero and income, but this has a limit value. Therefore, the results of McKinnon and Shaw's research on the effect of bank profits greater than zero on economic growth in the optimal structure of the economy in Iran are confirmed. 3. Under optimal conditions, the implementation of contractionary monetary policy to reduce inflation with a low threshold If the money supply falls below this level, it will have the opposite effect
1- Ajello, A., Laubach, T., Lopez-Salido, J. D., & Nakata, T. (2016). Financial stability and optimal interest-rate policy.
2- Andrade, P., Galí, J., Bihan, H. L., & Matheron, J. (2018). The optimal inflation target and the natural rate of interest (No. w24328). National Bureau of Economic Research.
3- Anvari, E., ZARRA, N. M., & FAKHRAEE, E. (2011). Evaluating optimum monetary rule in a dynamic stochastic general equilibrium model using control approach (In Persian).
4- Borio, C., & Gambacorta, L. (2017). Monetary policy and bank lending in a low interest rate environment: diminishing effectiveness?. Journal of Macroeconomics, 54, 217-231.
5- Borio, C., & Gambacorta, L. (2017). Monetary policy and bank lending in a low interest rate environment: diminishing effectiveness?. Journal of Macroeconomics, 54, 217-231.
6- Cohon, J. L. (2004). Multiobjective programming and planning (Vol. 140). Courier Corporation.
7- Disyatat, P. (2008). Monetary policy implementation: Misconceptions and their consequences.
8- Egilsson, J. H. (2020). How raising interest rates can cause inflation and currency depreciation. Journal of Applied Economics, 23(1), 450-468.
9- Erfani, A., & Talib Beidokhti, A. (2012). Optimal manetory policy speed limits in Iran economy. Quarterly Journal of Economic Modeling Research, 3(12), 1-27 (In Persian).
10- Erfani, A., & Sadeghi, M. (2017). Effect of monetary and foreign exchange policies on foreign trade in Iran. Quarterly Journal of Fiscal and Economic Policies, 5(17), 7-25 (In Persian).
11- Farazmand, H., Ghorbannejad, M., & PoorJavan, A. (2013). Determining the the optimal monetary and fiscal policy rules in economy of Iran. Economic research and policies, 21(67), 69-88 (In Persian).
12- Hatami, A., & Sultan Al-Almaei, M. H. (2015). Investigating the effect of exchange rate instability on inflation in Iran. Trend Quarterly, 1(76), 51-74, (In Persian).
13- Hassanzadeh, A. (2010). The impact of interest rate liberalization on macroeconomic variables. Tehran Monetary and Banking Research Institute (In Persian).
14- Hosseinzadeh, H. (2015). Assessing the impact of macroeconomic variables on money supply in Iran. Economic Journal, 1(11 & 12), 27-48 (In Persian).
15- Jafari Samimi, A. (1992). Investigating the relationship between inflation and government budget deficit in Iran: A Theoretical and Experimental Research. Management Future Research, 4(2), 23-34 (In Persian).
16- Keshavarz Peyvasti, A. (2009). Optimal interest rate estimation of banking system to maximize Iran’s economyc growth using simultaneous equation system. Scientific Journal of Planning and Budgeting, 14(1), 3-30 (In Persian).
17- Teodoru, I. R., & Toktonalieva, A. (2020). Estimating the Neutral Interest Rate in the Kyrgyz Republic (No. 20/87). International Monetary Fund.
18- Mehnatfar, Y., & Khakpour, H. (2006). Evaluation of non-oil exports and its effect on economic growth in Iran: An empirical analysis (1976-2005). Economic Journal, 5(51 & 52), 91-111 (In Persian).
19- Mohagheghnia, S. J., Dehghan Dehnavi, M. A., & Rahmatinia, M. (2015). Designing the optimal banking interest rate model in Iran. Iranian Economic Research, 13(25), 97-119 (In Persian).
20- Mohammadi, H., & Mahmoudi, M. (2017). Reviews of mutual interest rate effect to macroeconomic variables in Islamic and un-Islamic countries. Economic Modeling Research, 7(28), 103-138.
21- Stiglitz, J. E. (1993). The role of the state in financial markets. The World Bank Economic Review, 7(suppl_1), 19-52.
22- Naqdi, Y., & Effati Baran, F. (2019). Determining the optimal interest rate and its effects on the Iranian economy (application of optimal control theories). Journal of Economic Modeling, 13(45), 73-92 (In Persian).
23- Ostadi, H., & Shajari, H. (2002). The effect of inflation on consumption behavior, savings. Faculty of Administrative and Economic Sciences, University of Isfahan, 1(2), 49-62 (In Persian).
24- Panahi, H., Asgharpour, H., Khanian Baradaran, Z., & Azari, Z. (2016). The effect of inflation on the budget deficit of the Iranian government (1981-2012). Fourth National Conference on Management, Economics and Accounting. Tabriz. https://civilica.com/doc/518420 (In Persian).
25- Rajaei, Y., & Ahmadi, S. (2012). Estimation consumption function of private sector in Iran economy (1950-2007). JDEM, 4(8), 67-75 (In Persian).
26- Shakeri, A. (2005). Historical Review of the macroeconomic theories. Iranian Journal of Economic Research, 7(23), 69-93 (In Persian).
27- Shakeri, A., Mohammadi, T., & Rajabi, F. (2015). Mark-UP Impact on Inflation in Iran’S Economy. Economic Research Review, 15(58), 37-60 (In Persian).
28- Sadeghi, S. K., Sheibaei, A., & Feshari, M. (2011). The study of inflation main determinants by emphasizing on government size. Quarterly Journal of Economic Modeling, 4(1), 73-91 (In Persian)
29- Taylor, J. B. (1993, December). Discretion versus policy rules in practice. In Carnegie-Rochester conference series on public policy (Vol. 39, pp. 195-214). North-Holland.
30- Teodoru, I. R., & Toktonalieva, A. (2020). Estimating the Neutral Interest Rate in the Kyrgyz Republic (No. 20/87). International Monetary Fund.
31- Ziaee Bigdeli, M. T., & Maghsoudi, N. (2005). Investigating the effects of inflation on the budget deficit in terms of government revenue and expenditure. Economic Research Journal, 5(3), 81-111 (In Persian).
32- Zenozi, S. J., Faizi, S., Asadi, S., & Sadeghvand, B. (2015). Investigating the relationship between monetary base, money supply and inflation in the Iranian economy. Fourth National Conference on Management, Economics and Accounting, https://civilica.com/doc/518315 (In Persian).