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Articles by F. Karimzadeh
Total Records ( 5 ) for F. Karimzadeh
  S. Homayooni , F. Karimzadeh and H. Arabshahi
  The relationship of DRC (Domestic Resource Cost) can indicate the relative benefits among activities. If the product having DRC is equal to one this means for gaining a dollar in the international level must be consumed the 1 dollar equivalent of Domestic Resources. The ratio of DRC <1 indicates activities in which the country has an international advantage since the activities which their DRC is >1 is interpreted as lack of the relative advantage. Since, Iran's statistics of foreign commerce indicating the apple export in figure of export products pertaining to the garden surplus to domestic requirement and its import in figure of both the changeable and unchangeable products. Therefore in this study, researchers proceed the analysis of the product's shade prices within the framework of the different scenarios. For calculating apple's shade price from universal prices of this product is used as the import CIF price consider every tone of the product and with adding charging cost and transportation as well as from border to consumption centers, the shade price gains in consumption centers. In sum, resaearchers can proceed to appoint competitive advantage chosen countries in exporting apple in this figure with considering the shade price of exporting apple's exchange product and with considering direct export shade price, researchers can attain Iran's competitive position and specially Razavi Khorasan's chosen countries in relation to direct export of apple. So, the shade price of farm is determinant of chosen countries' competitive position in allocation and without allocation resources. The shade price of apple direct import is explanatory of its replacing power with domestic production and then importing exchange products.
  S. Homayooni and F. Karimzadeh
  In this study with the use of shephard lema function, share of each factor of production in total costs has been estimated and with the use of these estimates price elasticity's and cross elasticity's have been achieved. Also in this study, Allen elasticity have been estimated. As Allen elasticity are explanatory factors showing changes in the ratio of all factors (due to price change of one of the factors of production) utilization of factors of production has been considered. The factors of production in this study are capital and labor force. The statistical society in this research is a large workshop with 100 personals and more. This classification is according to the latest international classification for the industrial large workshops (2000-2008).
  S. Homayooni and F. Karimzadeh
  In today's world that globalization is one of the most developments in process each country needs to commercial strategy to stay in global markets and gain more market share or at least to keep present situation and this is demands that country would have exact knowledge about the structure of market and the development in any part of time. Otherwise, it's going out from competition circulation in new world convergence movement. In the free economy, exchange rate have a key role in keeping or eliminating on important part of home industries as non-optimal exchange rate shows welfare negative effects through eliminating home industries competition power and waste of capital and unemployment. So, beneficent of exporters, importers and exchange rate are 3 sides of a triangle that has become one of the most controversial of economic issues. So in this study, we first by examining the concentration index between large industries of Iran, examine the quality of market distribution between present organizations in the industry and after knowing their effects and separate industries in to competition levels and monopoly, we will examine the effects of increasing exchange rate on export at each group of separated industries. For this reason, we specified export supply function to them and in next level will proceed to evaluate this effects with use of panel data procedure. In this study, statistical sociology is 2 digit subgroups of industry in last international classification emending of occupation (ISIC) and examined in period of 2000-2008. Observed results indicates that export exchange rate do as a incentive export and has meaningful effect in exchange income and tension export in comparison with increasing exchange rate that is more than industries with high concentration rate in competitive industries.
  S. Homayooni , H. Daliri , F. Karimzadeh and H. Arabshahi
  Investment is one of the key factors to create a steady growth in economy of the developing countries. In today’s world, only the countries are considered important that have a production line and technological support to back it up. For this, a great deal of capital is needed and to accumulate it using a foreign source to supplement the domestic resources sounds rational. This also could be a way to import the modern technology in the country. However, it must be born in mind that in order to attract foreign investment, one should find and modify the influencing factors on direct foreign investment. In this study using the VAR model, we reviewed the interaction between foreign direct investment and domestic investment and the economic growth during 1990-2004 in Iran.
  F. Karimzadeh , M. Motallebi , M.R. Zamani and Sh. Hamze
  The objective of the current research was to determine the significant parameters on the production of PG in a submerged culture of R. solani AG2-2 to study PGIP-PG interaction. Taguchi method was applied to evaluate the significant parameters for PG production. The process variables were pH (4, 4.5, 5 and 5.5), pectin as carbon source and inducer (7.5, 10, 12.5 and 15 g L-1) and incubation time (2, 4, 6 and 8 days). The liquid medium also included mineral salts as in Pectic Zymogram (PZ) medium. Polygalacturonase activity was determined spectrophotometrically at 500 nm and productivity was calculated at the time of maximal extracellular enzyme activity. Pectin concentration was the most important factor in the enzyme production (34.8% contribution), whereas pH had a minimal contribution (16.9%). The optimal levels of the different factors for PG production were 12.5 g L-1 pectin, pH 4.5 and 6 days of incubation time at 26°C. A maximal productivity of 115.5 U mL-1 was reached in these conditions.
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