A Study of the Impacts of Leverage on Labor and Capital Productivity: A Case Study of Companies Listed in Tehran Stock Market

Productivity is a primary objective of increasing competition in modern economy and any increase in productivity level helps development of organization in the competitive market. The purpose of this paper is to investigate the relationship between operating leverage, financial leverage, compound leverage as independent variables and productivity indices including labor and capital productivities as dependent variables. The study includes 102 companies accepted in Tehran Stock Market based on screening, systematic deletion, over the period 2005-2010. The required data are gathered through official financial statements, committee reports, and other available documents in Tehran Stock Market. Stepwise regression and Pearson correlation are used to analyze the data. The results of the study have indicated that there were significant relationships between independent variables including leverage ratios with labor productivity. In addition, there is also a significance relationship between leverage ratios with capital productivity of total assets.