Many studies of the determinants of investment use Tobin's q to control for the investment opportunities of a firm. Tobin's q roughly measures the average return on a firm's capital anticipated by the market. More relevant for investment decisions, however, is the marginal return on capital. In...

This paper is a sequel to the “Sustainable Investment in Turkey, 2010” report (IFC, 2011). The original report provided a review of the then current state of the sustainable investment (SI) in Turkey and analysed the institutional prerequisites and interventions that would encourage better...