University of Isfahan Financial Accounting Research 2322-3405 6 4 2014 12 22 Studying the Relationship between Cash Holdings and Market Share Using Dynamic Models of Companies Listed in Tehran Stock Exchange Studying the Relationship between Cash Holdings and Market Share Using Dynamic Models of Companies Listed in Tehran Stock Exchange 55 72 17032 FA Majid Azimi Yancheshme Islamic Azad University, Mobarake BranAssistant Professor of Accounting, Islamic Azad University Mobarake Branch (IAU), Iranch (IAU), Somayeh Shamohammadi Ghahsareh Master of Accounting, Islamic Azad University, Mobarake Branch (IAU), Iran Journal Article 2016 06 14 Cash is the important resources of every economic entity. Maintaining the balance between cash and cash needs is an important factor in economic health of the economic entities, as well as their continuity. Considering the importance of this issue, the present study deals with investigating of the cash holding motives, models that justify cash holding, and factors affecting that, particularly the market share. The main objective of this study is to evaluate the relationship between market share and cash holding in the competitive market environment of companies listed in Tehran Stock Exchange. Hence, Schoubben and Van Hulle dynamic cash model has been used for 114 selected companies for a time period of 2004 to 2012. This model is analyzed by the Generalized Method of Moments (GMM). This study is a basic experimental research and regarding the nature of this paper, it is a correlational one. Results of this study reveal that there is a significant negative relationship between market share and cash holdings and also shows that this relationship is of greater significance among moderately concentrated industries (industries with oligopolistic competitions).   <strong> </strong>   Cash is the important resources of every economic entity. Maintaining the balance between cash and cash needs is an important factor in economic health of the economic entities, as well as their continuity. Considering the importance of this issue, the present study deals with investigating of the cash holding motives, models that justify cash holding, and factors affecting that, particularly the market share. The main objective of this study is to evaluate the relationship between market share and cash holding in the competitive market environment of companies listed in Tehran Stock Exchange. Hence, Schoubben and Van Hulle dynamic cash model has been used for 114 selected companies for a time period of 2004 to 2012. This model is analyzed by the Generalized Method of Moments (GMM). This study is a basic experimental research and regarding the nature of this paper, it is a correlational one. Results of this study reveal that there is a significant negative relationship between market share and cash holdings and also shows that this relationship is of greater significance among moderately concentrated industries (industries with oligopolistic competitions).   <strong> </strong>   https://far.ui.ac.ir/article_17032_5989650d670ee1a353ffc1fcb8879b6d.pdf