Mohammad Taghipour - Department of Industrial Engineering,North Tehran Branch, Islamic Azad University, Tehran,Iran
Iman Valitabar - Department of Industrial Engineering,North Tehran Branch, Islamic Azad University, Tehran,Iran
Mohammad Bagher Soleymani - Information technology expert at Parand Islamic Azad University
Ghasem Soleymanian Samarein - Accounting expert of Islamshahr Islamic Azad University

Working capital management plays an important role in better performance of production firms. A firm’s working capital is the sum of capital invested in current assets. If current liability in a firm is subtracted from its current assets, the result is net working capital. Working capital management refers to determination of the volume and composition of resources and the use of working capital in a way to increase the wealth of shareholders. The present research seeks to study the impact of working capital management on profitability in firms listed in Tehran stock exchange using regression model