The thesis consists of two essays: "The CAPM -- A General Equilibrium Foundation" and "The Foreign Exchange Rate in Financial Markets".The Capital Asset Pricing Model (CAPM) is one of the most successful models for portfolio selection. The utility functions are assumed to depend positively on...

In dieser Arbeit werden die Auswirkungen von spekulativen Attacken auf die Stabilität von Zielzonensystemenn in unterschiedlichen Ansätzen analysiert. Außerdem wird die Wirksamkeit verschiedener Politikoptionen zur Verteidigung eines Systems von Währungsbändern vor solchen Attacken...

Untersuchungsziel dieser finanzwissenschaftlichen Arbeit ist die Wirkung einer Tobin-Steuer als spezielle Transaktionssteuer auf das Devisen-Handelsvolumen und die Wechselkursvolatilität. Ausgangspunkt bildet das mikroökonomische Investitionsverhalten der Marktteilnehmer, das wir mit Hilfe von...

We study the behavior of real exchange rates in a two-country dynamic equilibrium model. In this model, consumers can only consume domestic goods but can invest costlessly in capital stocks of both countries. Nevertheless, transporting goods between the two countries is costly and, hence, the...

Using long-span data on the dollar-sterling and dollar-franc real exchange rates over the past two centuries, we apply the findings of various strands of the recent literature in order to examine the statistical and economic significance of the Harrod-Balassa-Samuelson effect (the effect of...

This Study addressed the inflation accountingproblem with respect to Greece. This problem had been unaddressed despite the serious implications it may have on micro- and macro-decision making due to the high andpersistent inflation Greece has sustained from 1973 and afterwards.To accomplish the...

According to the Purchasing Power Parity {(PPP)} theory, real exchange rate fluctuations are mainly caused by transitory shocks. The theory fits well one empirical feature of the data, namely the short-run volatility of real exchange rates, but also implies that shocks should die away in one to...

Since the advent of managed floating it has come to be accepted as a stylized fact that short-run deviations from purchasing power parity are both substantial and persistent. Two explanations of these deviations have been advanced in the literature. One emphasizes the role of changes in...

In this paper we present an overview of a number of issues relating to the equilibrium exchange rates of transition economies of the former soviet bloc. In particular, we present a critical overview of the various methods available for calculating equilibrium exchange rates and discuss how...