Journal of Economic Modeling Research

One of the major problems in Iranian economy is continuous deficit in the budget operating balance due to the non-optimal government size. The government often financed a part of this deficit by debt cearation. Government debts depends on its size and decomposition have variety macroeconomic effects. So, this study investigated the macroeconomic effects of government debt in iran during 1352-1393 by a SVAR model. the result showed that government debt to Nondepository Institutions leads to aggregate demand surplus, increasing of relative price of nontradable goods to tradable goods and decreasing of gdp. The debt to central bank increase price level and decrease gdp. Finally, government debt to other Depository Institutions leads to aggregate demand surplus, increasing of real exchange rate, decreasing of relative price of nontradable goods to tradable goods, decreasing of general price level and increasing of gdp. Also, according to the results of variance decomposition, the government can control a significant part of short run and long run macroeconomic fluctuations by managing its debts.

This study examines the relationship between per capita income and per capita dioxide emissions in the form of a new definition of the Environmental Kuznets Curve, to investigate how corruption influences the income level at the turning point of the relationship between per capita dioxide emissions and income, in developed and developing countries the period 1994-2013 through the use of a panel data model. Our results support the Environmental Kuznets Curve hypothesis for developed countries and existence of an U-shaped relation for developing countries. We find evidence that the higher the country's degree of corruption, the higher the per capita income at the turning point for developed countries and the lower the per capita income at the turning point for developing countries than when corruption is not accounted for. Also, the share of renewable energy in both groups of countries has a negative and significant effect on per capita dioxide emissions, but the positive effect of urbanization rate in developed countries is significant and in developing countries is not.