Monopoly Power in Industry and Evaluation of Its Effect on Iran's Economic Growth: Application of Endogenous Markup Approach

The main purpose of this study is to examine the relationship between market structure and economic growth in iran. Using Lopez - Azzam (2002) Approach, the extent of endogenous markup in different markets was estimated. Then the relationship between markup and economic growth was investigated by baranova (2013) model. In this paper we also examined structural and behavioral aspects of 131, 4-digit industry over the 1995-2011 periods. These aspects include markt power as structural variable and conjectural variation as behavioral variable. In addition we sought to identify the impacts of markup on economic growth. The results of this study indicate that based on conjectural variation, firms cooperate in 91 percent of industries. On the other hand, Lerner index and markup in 94.2 percent of industries were higher than 0.1 percent and 1.001 respectively. Our findingsalso indicate that there is a negative association between endogenous markup and economic growth. According to the results of this study, low level of competition in industries led to limited growth in Iran.