An abundant literature is concerned with the existence of equilibrium in incomplete markets where participation to financial markets is not restricted. To mention a few, Cass (1984), Werner (1985), Geanakoplos and Polemarchakis (1986), Duffie (1987), Duffie and Shafer (1985) and Magill and...

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...

This dissertation has a twofold objective: to extend the Williamson asset specificity hypothesis and to empirically test both the asset specificity hypothesis and the extension. The Williamson asset specificity hypothesis asserts that the financial leverage used by firms is a function of the...

The study tested three types of models, i.e. financial, macroeconomic, and the combined financial-macroeconomic model (FINMAC), an aggregation of the expanded Gordon model and the IS-LM model. This was done to determine the impact of certain financial and macroeconomic variables on stock prices...