This paper discusses the impact of a firm's technology portfolio on its market value. Two concepts are used to characterize a firm's portfolio: the number of technological fields and the degree of relatedness within the portfolio characterized by the amount of joint occurrences of patents in...

The current financial market crisis has impressively demonstrated the importance of an effective credit risk management for financial institutions. At the same time, the use and the valuation of credit derivatives has been widely criticised as a result of the crisis. Over the past decade, credit...

This paper investigates the extent to which voluntary disclosure quality (VDQ) of firms is reflected in equity prices. As a novel contribution, we explore the idea that the speed with which equity prices reflect any benefits or costs of VDQ varies across firms. We find that in environments where...