abstract oil export revenues have a major share in both iranian government incomes and gross domestic product (gdp). with regard to the importance of agricultural sector in economic growth, rural development and rural welfare improvement, this sector indubitably influenced by temporary and unexpected shocks in oil export. therefore we employed feder(1982) and auto-regressive distributed lag (ar...

Numerous research in Nigeria on the interaction effect between exchange rate and foreign reserves have been marginalized; this has therefore informed study to investigate nexus reserves, with focus Nigerian economy. External reserve was used as dependent variable, rate, inflation, non-oil export, oil real interest were independent variables. Time series data spanning 1980 2020 used. The employe...

There are some factors predicted tohave an effect on the countries’ economic devlopment. This study aimed to analyze long-term and short-term effects of In-flation, Exchange Rate, Foreign Economic Growth (the destination United States, China, Japan) Indonesian Export. The Auto-Regressive Distributed Lag (ARDL) Model is used in this analysis from 1968 through 2017. results show that long-term, i...

A key aspect of sustainable development in a country is how energy, environment and economic sectors interact. Greenhouse gas emissions and their impacts are among important environmental issues that have been in focus. The increase in the concentration of these gases in atmosphere to levels above the natural level results in global warming, depletion of the Earth’s protective layer against har...

background: injuries and deaths from road traffic crashes are one of the main public health problems throughout the world. this study aimed to identify determinants of fatality traffic accident in iran for the twenty-span year from 1991 to 2011. methods: a time series analysis (1991-2011) was used to examine the effects of some of the key explanatory factors (gdp per capita, number of doctors p...

background: a dramatic increase in healthcare expenditures is a major health policy concern worldwide. understanding factors that underlie the growth in healthcare expenditures is essential to assist decision-makers in finding best policies to manage healthcare costs. we aimed to examine the determinants of healthcare spending in iran over the periods of 1978-2011. methods: a time series analys...

With persistent population growth, a dwindling supply of arable land per capita, and the relatively high income elasticity of demand for food in developing countries, there is a growing need for food supply increases to originate from growth in productivity rather than expansions in inputs. In this paper the authors construct levels of total factor productivity in agriculture for 111 countries ...