An Empirical Analysis of the Effects on Firms' Economic Performance of Implementing Environmental Management Systems

This paper investigates whether environmental management system (EMS) implementation influences a firm's value added, one of the indices of economic performance. Because it is expected that EMS implementation increases a firm's value added through an increase in demand and an improvement in productivity, a simple model to identify how these effects influence a firm's value added is developed and is empirically investigated using panel data for Japanese manufacturing firms in the period 1996-2007. The main findings are as follows. For the full sample, EMS implementation increases a firm's value added through an increase in demand and improvement in productivity. Among these firms, however, the positive effect of the implementation through an increase in demand mainly exists for export-oriented firms. At the industry level, the effects of EMS implementation vary among different industries. These results empirically prove that there are plural paths for EMS implementation to improve a firm's economic performance.