

The purpose of this paper is to investigate the interrelationships between transportation (rail and air), economic growth and carbon dioxide emissions in Iran during the period 1362-1397 using time series data and the system of simultaneous equation approach. The findings show a positive correlation between transportation (rail and air) and economic …















Drought that is known as one of the natural disasters, has affected climate equilibrium of Sistan region during the years 1998 to 2001, and has made various economic and social impacts. Theobjectives of this study were to investigate the impacts of the drought on income, investment and employment in agricultural sector and also on migration and …






















































