List of Articles L25

• Open Access Article
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  1 - The Effects of Diversification of Industrial Exports on the Instability of Foreign Exchange Earnings in Iran's Industrial
  hooman nasiri masoud nonezhad Ali Haghighat Mehrzad Ebrahimi
  10.30495/eco.2020.1880316.2258
  The main purpose of this study is to investigate the relationship between the export diversification in the top industrial sub-sectors and its impact on the volatility of foreign exchange earnings in Iran's industrial sector. Accordingly, quarterly data from 2002-2 to 2 More

  The main purpose of this study is to investigate the relationship between the export diversification in the top industrial sub-sectors and its impact on the volatility of foreign exchange earnings in Iran's industrial sector. Accordingly, quarterly data from 2002-2 to 2018-3 were collected in the top three industrial sub-sectors of the country and the autoregression method with distributed intervals was used for estimation. The findings indicate the positive effects of inflation and global income on short-term and long-term foreign exchange earnings instability and the effect of concentration index of base metals sub-sector on industrial foreign exchange earnings instability was positive and in non-metallic mineral products and workshop textiles has been negative and significant. Therefore, moving towards diversification in the metals sub-sector and focusing on the non-metallic mineral and textile sub-sectors will reduce the volatility of industrial foreign exchange earnings. Based on the results, it is suggested that the government reduce the instability of industrial foreign exchange earnings by granting facilities, setting export and import customs tariffs in industrial sub-sectors, while directing production in terms of diversification or decentralization. Manuscript profile
• Open Access Article
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  2 - The Influence of working capital management on Profitability of Companies listed in Tehran Stock Exchange
  امید فرمان آرا میثم عارف نژاد محبوبه جعفری
  Abstract Economic enterprises are effectively participating in economic sphere. Two indicators of liquidity power and profitability financially determine this effectiveness. The so-called profitability is the sign of the firm's health and the power of liquidity is the More

  Abstract Economic enterprises are effectively participating in economic sphere. Two indicators of liquidity power and profitability financially determine this effectiveness. The so-called profitability is the sign of the firm's health and the power of liquidity is the survival sign of the economic enterprise. In other words, if a company is not profitable, then it's sick, but if there is no liquidity, its survival is in danger. While, both of these factors are important, but liquidity has a higher level of importance. The aim of this research is to investigate the relationship between financial leverage and working capital management and its impact on profitability and performance indicator of listed companies in Iran’s capital market. The statistical sample has been selected by using the available systematic elimination method that has been studied from 2010 to 2014. Research hypotheses were examined by using the linear regression, and regression results among the study sample showed that there is a positive and significant relationship between the combination of working capital and the economic value added of the companies listed in Tehran Stock Exchange, and this relationship will be reversed by the mediator impact of financial leverage; but this relationship was not observed among companies operating in Iran’s OTC market. The results also showed that the working capital combination does not have a significant impact on the variables of financial leverage and the ratio of return on equity in companies active in Tehran stock exchange organization and Iran's OTC market. Manuscript profile