We study the empirical behaviour of semi-parametric log-periodogram estimation for long memory models when the true process exhibits a change in persistence. Simulation results confirm theoretical arguments which suggest that evidence for long memory is likely to be found. A recently proposed...

Präferenzen für Gütervielfalt und hieraus resultierende heterogene Preisbildung auf unvollkommenen Gütermärkten werden in empirischen Produktivitätsuntersuchungen bislang nur unzureichend berücksichtigt. Der vorliegende Beitrag möchte zur Schließung dieser Forschungslücke beitragen: Er...

One possible conclusion from recent experimental research on decision making under risk is that observed behaviour can be reasonable accommodated by expected utility plus an error term. This conclusion implies that the violation rate of expected utility should decrease if errors are excluded....

This paper analyzes stochastic productive pollution within a model of endogenous growth. The extent to which the agents perceive their individual influence on aggregate pollution is parameterized. Recursive preferences allow for the separation between intertemporal substitutability and risk...

As institutional investors are engaged to realize attractive risk-adjusted returns, they can by definition be seen as risk managers. This paper analyzes their risk management behavior from a macro perspective and focuses on their incentives for rational herding. Based on a questionnaire survey...

In jüngster Vergangenheit hat die Versicherungswirtschaft einen grundlegenden Wandel durchlaufen. Deregulierung, Globalisierung sowie Substitutionskonkurrenz führten zu einem verschärften Wettbewerb um Marktanteile bei sinkenden Gewinnmargen. Aufgrund dieser neuen Wettbewerbsdynamik und den...

In this paper, I examine an inter-temporal exchange economy with a complete financial market. The economy is populated by two heterogeneous investors who differ from each other in their attitudes towards risk. In such a model, a single representative agent can be created who generates the same...

The rational prodigality argument, which often serves to justify social security, is considered in a second-best tax framework with endogenous labor supply. Rational prodigality renders the familiar policies time inconsistent. We analyze time consistent policies and show that a wage tax suffices...