In einer Währungsunion sind Inflationsdifferenzen zwischen den Mitgliedsländern gleichbedeutend mit Veränderungen des realen Wechselkurses. Dies mag erklären, warum in jüngerer Vergangenheit die Inflationsdifferenzen innerhalb der Europäischen Währungsunion verstärkte Aufmerksamkeit in...

The standard model of New Economic Geography (NEG) presents a synthesis of polarization and neo-classical theories. Within a monopolistic competition framework it aims to explain processes of concentration and deconcentration of manufacturing in a two-sector economy. In this paper the effects of...

In this paper a stochastic dynamic general equilibrium (DGE) model with capital accumulation is augmented by sticky wages. Wages are set in a staggered way as in Taylor (1980) implying that the optimal wage will be set for two periods. Prices are also sticky since there are adjustments cost of...

This paper analyzes nature protection by a social planner under different "utilitarian" social welfare functions. For that purpose we construct an integrated model of the economy and the ecosystem with explicit consideration of nonhuman species and with competition between human and nonhuman...

In an integrated economy-ecosystem model humans choose their land use and leave the residual land as habitat for three species forming a food chain. The size of habitat determines the diversity and abundance of species. That biodiversity generates, in turn, a flow of ecosystem services with...

Predator-prey models of the Lotka-Volterra type and their refinements describe predator-prey interactions taking populations as basic units of analysis. In contrast to these macro models we derive interdependent population growth functions of a predator and a prey species from a micro ecosystem...

This paper analyzes the dynamics of a two-dimensional microfounded predatorprey model. It is shown that the dynamics closely resemble those of a model commonly used in mathematical biology if parameters of the latter are suitably restricted. The positive equilibrium of the microfounded model is...

Using our updated model of the payment exchange system within the banking industry, we have introduced sudden local economic shocks and calculated their effect on the stability of the financial system. Our results suggest that the probability of a total banking failure, i.e., the systemic risk...

Can comparative statements be credible even when absolute statements are not? For instance, can a professor credibly rank different students for a prospective employer even if she has an incentive to exaggerate the merits of each student? Or can an analyst credibly rank different stocks even if...