Since the 1980's the phenomenon of potential climate change or 'global warming' has been one of the predominant topics in environmental economics. Uncertainty is one of the main characteristics of climate change since many important scientific relationships are not yet well enough understood....

Mexico’s financial debacle and its impact on other emerging markets (the Tequila effect)has raised many fundamental questions. Mexico achieved fiscal balance in 1993, undertookseveral fundamental market-oriented reforms, signed a free trade agreement with a very largemarket (the NAFTA), became...

In this paper, we show that a simple model of smoothly state-dependent pricing generates a distribution of price adjustments similar to that observed in microeconomic data, both for low and high inflation. Our setup is based on one fundamental assumption: price adjustment is more likely when it...

This paper analyzes the effects of monetary shocks in a DSGE model that allows for a general form of smoothly state-dependent pricing by firms. As in Dotsey, King, and Wolman (1999) and Caballero and Engel (2007), our setup is based on one fundamental property: firms are more likely to adjust...

Intertemporal general-equilibrium models with Keynesian features such as imperfect competition and imperfectly flexible prices which give rise to a (at least) short-run non-neutrality of monetary policy have become the workhorse model for monetary macroeconomics. This thesis now makes four...

This thesis investigates the role of exchange rate in a small open economy policy framework. Focusing the analysis on the crisis-hit East-Asian countries, the main objective of this thesis is to investigate the necessity of the monetary authority to concern about the exchange rate stability by...

Im Rahmen dieser Arbeit wurden Ambiguitätsindikatoren aus Erkenntnissen der Ambiguitäts-, Medien- und Kommunikationsforschung abgeleitet, die ambige Informationszustände beschreiben bzw. unter denen eine erhöhte wahrgenommene Unsicherheit besteht oder entstehen kann. Diese lauten: Zu wenige...

This paper analyzes optimal pricing for information goods underincomplete information, when both unlimited-usage (fixed-fee) pricingand usage-based pricing are feasible and administering usage-basedpricing may involve transaction costs. It is shown that offeringfixed-fee pricing in addition to a...

Game theoretic modeling involves making assumptions on agents' infinite hierarchies of beliefs. These assumptions are understood to be only approximately satisfied in the actual situation. Thus, the significance of game theoretic predictions depend on robustness properties of the solution...