Siab Mamipour; Soghra Jafari; Ziba Sasanian Asl
Abstract
The main purpose of this paper is to investigate the effects of monetary and fiscal policies on the business cycles in the Iranian economy during the period 2004-2016. Markov Switching model has been used with time varying transitional probabilities for the recognition of the business cycle and identifying ...
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The main purpose of this paper is to investigate the effects of monetary and fiscal policies on the business cycles in the Iranian economy during the period 2004-2016. Markov Switching model has been used with time varying transitional probabilities for the recognition of the business cycle and identifying the influencing factors on the probability of staying in a period of recession and boom or the transition from one situation to another. The results of the MSIH(2)-AR(2)[1] model show that both expansionary monetary and fiscal policies increase expansion period, but expansionary monetary policy is more effective in expansionary fiscal policy. During the recession regime, fiscal policy has a greater impact than a monetary policy in the transition from the recession regime. Also, findings show that business cycles in Iranian economy have comovements with changes of oil revenues, but the effect of changes in oil revenues has a different effect on the staying or transition of business cycles. Thus, the increase of oil revenues reduces the probability of staying economic boom regime, but it will increase the transition probability of recession to boom regime. In fact, these results indicate that oil revenues are not managed well during the boom period but there is the relatively good management in the recession regime. [1]- Markov Switching Intercept and Heteroskedasticity terms (2 regimes)-AutoRegressive (2 Lags)
Firooz Falahi; Majid Feshari; Siab Mamipour
Volume 15, Issue 45 , February 2011, , Pages 49-75
Abstract
This paper focuses on the relationship among structure, conduct, and performance (SCP) for a sample of 141 four-digit industries during 1999-2005 in Iran. For this purpose seemingly unrelated regression estimation (SURE) method is used to estimate the parameters of the models for profitability (the ratio ...
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This paper focuses on the relationship among structure, conduct, and performance (SCP) for a sample of 141 four-digit industries during 1999-2005 in Iran. For this purpose seemingly unrelated regression estimation (SURE) method is used to estimate the parameters of the models for profitability (the ratio of profit to sale), concentration (the inverse of the number of firms in industry), and advertising.
Results show that profitability is determined by advertising, which in turn, is affected by profitability. In addition, there are positive relationships among advertising, research and development expenditure, concentration, growth rate of industries’ sale, ratio of investment to sale, and profitability.
Davood Behboodi; Hossien Asgharpour; Siab Mamipour
Volume 13, Issue 40 , October 2009, , Pages 125-147
Abstract
Growth literatures indicates that human capital، education and technologicaly progress are effective factors on economic growth. Empirical studies present that natural resource abundance have an important role on economic growth in natural-resource-rich countries. This studyessaystudy essay investigates ...
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Growth literatures indicates that human capital، education and technologicaly progress are effective factors on economic growth. Empirical studies present that natural resource abundance have an important role on economic growth in natural-resource-rich countries. This studyessaystudy essay investigates the relationship between natural resource abundance، human capital and economic growth in two cases of petroleum exporters' countries: A) Major petroleum exporters B) Other petroleum exporters. We use a panel data for The model of this paper is tested by panel data for the period 1970-2004. The results output of models indicate that physical investment and openness have positive impact on economic growth، and resource abundant and government expenditure ae inversely related with economic growth.، but hHuman capital hasve a different impact inin the two cases sample of paper; so that human capital have It has a negative impact on economic growth in the first case (A)، but while it has a positive impact on economic growth in the second case (B). So، We can conclude that human capital can be main factor to explain slow growth in resource-rich countries. Abundant of natural resource in this countries and bad usage of natural resource can be cause of negative relationship between human capital and economic growth. In other hands، Ccountries that are rich in mineral and oil resources neglect the developing of their human resources by devoting inadequate attention and expenditure to education. So these countries have lower growth rate with respect to others.
