Die Arbeit untersucht und vergleicht die Wirkung von Mindest- und Kombilöhnen (Lohnkostenzuschüsse und Transferzahlungen an Arbeitnehmer) in einem Arbeitsmarktmodell mit monopsonistischer Konkurrenz und freiem Marktzutritt für Firmen. Es wird die Wirkung beider Instrumente auf die Nutzen der...

The Commission on Graduate Education in Economics had raised several concerns regarding the role of mathematics in graduate training in economics (Krueger, 1991; Colander, 1998, 2005). This paper undertakes a detailed scrutiny of the notion of a utility function to motivate and describe the common...

The paper deals with two specific types of utility functions displaying decision maker's risk aversion at expressing the utility of monetary values. These functions are following: w(c) = 1 – e-x/R, u(x) = ln(x + R), where x is a monetary value and R is a constant expressing the degree of risk...

In this paper, we study the asset pricing implication of imprecise knowledge about rare events. Modeling rare events as jumps in the aggregate endowment, we explicitly solve the equilibrium asset prices in a pure-exchange economy with a representative agent who is averse not only to risk but...

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...

Marine Inseln beherbergen einen großen Teil der biologischen Vielfalt unseres Planeten und weisen gleichzeitig einen hohen Anteil endemischer Arten auf. Inselbiota sind allerdings zudem besonders anfällig für anthropogene Einflüsse wie den globalen Klimawandel, Habitatverlust und invasive...

In this paper we critically examine the main workhorse model in asset pricing theory, the Lucas (1978) tree model (LT-Model), extended to include heterogeneous agents and multiple goods, and contrast it to the benchmark model in financial equilibrium theory, the real assets model (RA-Model)....