Estimating the productivity threshold of the trading partner countries of Iran Cement counting the costs of market penetration

Due to the importance of developing non-oil exports in the country, in this study, the cement export market, which is one of the basic and strategic industries, has been studied. Therefore, by calculating the productivity threshold, counting the costs of penetration of the trading partner countries, the export growth rate has been studied by solow model, panel data and methods Econometrics (FGLS) for the period 2003-2020. Results for 12 trading partner countries shows that firms with productivity close to the threshold value are able to the more penetrate in market. However, the presence of external threats (such as economic sanctions, recession in the country, transportation facilities, coronary heart disease and etc.) has a negative impacted on the growth rate of cement exports despite the increasing influence of firms’ penetration in the market. In addition, measures such as increasing the productivity of enterprises, expanding international marketing activities and government support policies the effects of external threats on cement exports have somewhat reduced.