عنوان مقاله [English]
The influence of customer-base concentration on the firm performance can be investigated from two points of view: The first view considers customer-base concentration as the factor of pressure on the seller, but the second view considers it as a factor for enhancing production coordination, inventory management and information sharing along the supply chain. Increasing of customer-base concentration reduces sale costs and improves firm financial performance. This study is designed to investigate the influence of customer-base concentration on the improvement of financial performance. For this end, multiple regression models for combined data were estimated. The Data was gathered from 79 manufacturing firm (539 observations), accepted in Tehran Stock Exchange during 1381-1390. The results indicate that there is a positively significant association between financial performance and customer-base concentration. Thus, increasing in the customer-base concentration improves the company's financial performance. Also, firms with high customer-base concentration experience more efficient inventory management. The results of this study support the importance of the existence of major customers in market.