جستجوی مقالات مرتبط با کلیدواژه "کشش تغییرات حدسی" در نشریات گروه "اقتصاد"

The main purpose of This paper is to evaluate The market power of printing industries by employing conjectural variation approach. To meet this ends the seasonal data of 2-digit ISIC code over the periods of 1996-2014 were used. Moreover, in this study using demand, supply and optimality or equilibrium condition, conjectural variation and market power, both for ststic and dynamic trerm were evaluated. In this article the static and dynamic models using two stages least squares (2SLS) and vector error correction (VECM) methods have estimated respectively. The results indicate that in static model conjectural variation and market power are very low and significant so the competitive behavior exist in Iran’s printing industry. Moreover the results of dynamic model showed that in the short run, firms have competitive behavior, but  in long run they follow cooperative behavior which in turn  led to market power in this industry.

In recent studies، many economists have focused on the industry and market. Policymakers in order to provide a comprehensive framework for target market need to have information about the structure of the market and the factors affecting it. The model that is presented in this research shows the behavior of selected industries. This model investigates the structure from competition to monopoly and makes a link between the consumer and the producer behavior. In this paper ten manufacturing industry in Iran with 4 degree ISIC is chosen and market power and conjectural elasticity is examined using panel data. The results suggest that the dairy and print industries with 1. 3 and 1. 02 respectively، have the most conjectural variation، hence the collusive behavior is shown in these industries. Also cement and beverage industries with -0. 27 and 0. 51 respectively، have the most competitive structure. In addition chemical and steel industry، respectively، with 5. 9 and 4 have the most market power and cement and beverage industries، respectively، with 0. 33 and 0. 34 have the least market power among the industries surveyed.