Merger transactions involve differing degrees of change in capital structure and asset distribution. As a result, different forms of merger could have different effects on security values of the firms involved. Previous empirical studies primarily used samples that included all types of mergers. The present study examines the effect of one type of merger, pure stock exchange, on the values of the debt and equity of the firms involved.

The default of a major corporation or municipality generates debate over the impact these failures have on the borrowing cost of other issuers. Theory suggests that in efficient markets individual failures by themselves should not increase the level of interest rates in a market unless the default provides unanticipated information about other issuers. The default of New York City in the summer of 1975 was believed by many to have provided information that increased the perceived risk of investors and consequently increased new issue borrowing costs in the municipal bond market. Empirical research by Forbes and Peterson [2] and Gramlich [3] supports this contention, reporting that borrowers paid as much as 119 basis points more because of the New York City crisis. A study by Hoffland [6] suggests that the impact of the default was not just temporary, but was felt long after 1975. Though less scientific, others note that during 1975 municipal borrowing costs rose to record high levels with most issues carrying their interest cost during the summer of 1975.

Venture capital companies can be likened to mutual funds that make investments in small, new businesses. However, investments made by venture capitalists are unique in several ways [2]: (1) usually five or more years are required for a new firm to become well enough established that a venture capitalist can liquidate an investment; (2) during the early years of an investment, there is no organized secondary market for its shares; (3) the new firm characteristically faces a high risk of failure; and (4) several infusions of capital are usually required before the new enterprise becomes a going concern. Consequently, the investments made by the venture capital firm have long been considered to carry high risks as well as the potential for high returns. For this reason, venture capital firms actively diversify, investing in a portfolio of individual projects. Thus, the risk and return attributes of the venture capitalist's diversified portfolio will not totally mirror those of its individual investments.