Author/Authors :
Asadi، Mojtaba نويسنده Masters Student, Department of Management and Accounting, South Tehran Branch, Islamic Azad University, Tehran, Iran , , Nouralahzadeh، Norouz نويسنده Faculty Member, Department of Management and Accounting, South Tehran Branch, Islamic Azad University, Tehran, Iran , , Hamidian، Mohsen نويسنده Assist. Prof. & Faculty Member, Department of Accounting, School of Management and Accounting, South Tehran Branch, Islamic Azad University (IAU), Tehran, Iran ,
Abstract :
This paper presents an empirical investigation on the effect of product market competition on transactions with related parties and company performance. The study selects a sample of 250 randomly selected firms whose common shares were traded on Tehran Stock Exchange. The study uses Herfindahl-Hirschman Index (HHI) to measure the market concentration and uses historical information over the period 2008-2012 to examine the hypotheses of the survey. Using simple regression analysis, the study has detected a positive relationship between HHI and related party transactions. In addition, the study has detected a negative relationship between competition and company performance measured by return on assets.
