Effects of Oil Price Shocks and Economic Fluctuations of Trading Partners on Iran\u27s Ports Throughput

This study aims to estimate the effects of oil price shocks on seaborne trade in Iran; in particular, port throughput of three leading ports through economic fluctuations of three major trading partners of Iran, based on quarterly data for the period of 1999Q2 to 2018Q1. We apply a standard vector autoregressive (VAR) approach using Cholesky decomposition. The results indicate that with increasing oil revenues in short-run, seaborne trade be further directed towards Shahid Rajaei port while rising oil revenues changes the combination of goods handled in Emam Khomeini and Bushehr ports. In the long run, the share of oil price fluctuations in explaining the variations of Shahid Rajaei port throughput is higher than the other two. In fact, increases in oil revenues cause an increase in the volume of industrial and containerized seaborne cargo trade

Economic growth and environmental pollution in Iran: evidence from manufacturing and services sectors

This article aims to answer the question of whether the manufacturing (and mining) and services sectors in Iran should be reconstructed or grown as before, in order to improve the environmental quality. The global warming, if not global burning, is a dire warning about environmental pollution dangers to everyone, living on the Earth. In this field, Iran is a good candidate due to its significantly high share of CO2 emissions in proportion to the low share of economic growth in the world which can be remedied by economic growth, based on Environmental Kuznets Hypothesis (EKH). We employ the Auto-Regressive Distributed Model (ARDL) to examine the long run equilibrium relationship between CO2 emission and economic growth. The results show that, regarding EKC, the nexus of CO2 emissions and economic growth in either sector is in a sharply ascending phase. It implies that if manufacturing (and mining) and services sectors inflate, the quality of environment will decline owing to the intensive and pollutant energy-using structures. Thus, rather than growing, they should be reconstructed by importing cleaner and more efficient technologies and developing internal inventions

Economic growth and environmental pollution in Iran: evidence from manufacturing and services sectors

This article aims to answer the question of whether the manufacturing (and mining) and services sectors in Iran should be reconstructed or grown as before, in order to improve the environmental quality. The global warming, if not global burning, is a dire warning about environmental pollution dangers to everyone, living on the Earth. In this field, Iran is a good candidate due to its significantly high share of CO2 emissions in proportion to the low share of economic growth in the world which can be remedied by economic growth, based on Environmental Kuznets Hypothesis (EKH). We employ the Auto-Regressive Distributed Model (ARDL) to examine the long run equilibrium relationship between CO2 emission and economic growth. The results show that, regarding EKC, the nexus of CO2 emissions and economic growth in either sector is in a sharply ascending phase. It implies that if manufacturing (and mining) and services sectors inflate, the quality of environment will decline owing to the intensive and pollutant energy-using structures. Thus, rather than growing, they should be reconstructed by importing cleaner and more efficient technologies and developing internal inventions

Genotypic diversity of root and shoot characteristics of

Root and shoot characteristics of chickpea (Cicer arietinum L.) genotypes are believed to be important in drought tolerance. There is a little information about the response of genotypes root growth in hydroponics and greenhouse culture, also the relationships between root size and drought tolerance. This study was conducted to observe whether genotypes differ in root size, and to see that root size is associated with drought tolerance during early vegetative growth. We found significant differences (p0.01) in root dry weight, total root length, tap root length, root area, leaf dry weight, leaf area and shoot biomass per plant among 30 genotypes of chickpea grown in hydroponics culture for three weeks. Each of these parameters correlated with all others, positively. Among 30 genotypes, 10 genotypes with different root sizes were selected and were grown in a greenhouse in sand culture experiment under drought stress (FC %30) for three weeks. There were not linear or non-linear significant correlations between root characters in hydroponics and greenhouse environments. It seems that environmental factors are dominant on genetic factors in seedling stage and so, the expression of genotypics potential for root growth characteristics of genotypes are different in hydroponic and greenhouse conditions. In this study, the selection of genotypes with vigorous roots system in hydroponic condition did not lead to genotypes with the same root characters in greenhouse environment. The genotype×drought interactions for root characters of chickpea seedlings in 30 days were not significant (