Since the early 1990s there has been a substantial increase both in mergers and acquisitions (M&A) as well as in divestitures of high-tech companies. This dissertation examines the takeover and divestiture activity in high-tech markets in an effort to extend our current knowledge regarding...

This dissertation extends previous research on bubbles by investigating whether changes in the financial asset prices of the S&P500 reflect changes in fundamentals. We propose that if this is not the case the volatility is due to a bubble. Hence, this is the general hypothesis from which several...