Motivated by repeated spikes and crashes during previous decades we investigate whether the heavily financialized market for crude oil has been driven by speculative bubbles. In our theoretical modeling we draw on the convenience yield approach in order to approximate the fundamental value of...

Based on a theoretical monetary exchange-rate model in continuous time, this article establishes a sequential estimation framework which is capable of indicating central bank intervention in the run-up to a currency union. Using daily pre-European Monetary Union (pre-EMU) exchange-rate data for...

Zusammenfassung Die vorliegende Arbeit analysiert die Wechselkursdynamik eines glaubwürdig angekündigten, zeitlich fest anvisierten Übergangs von flexiblen zu festen Wechselkursen auf der Grundlage eines monetären Wechselkursmodells mit flexiblen Preisen. Verschiedene währungspolitische...

We analyze the dynamics of zero-coupon bond options in a situation in which the currently floating exchange rate between two countries' currencies is announced to be fixed on a given future date. To this end, we combine two strands of research that have been treated as separate issues up to...

This paper analyzes stock-price volatility in the presence of periodically collapsing Evans bubbles. We derive a volatility formula that establishes a link between the bubble component and stock-price volatility. We demonstrate how to fit the volatility equation to stock-market data.

This paper presents a new view on the gold price of greenbacks during and after the American Civil War by analyzing exchange-rate volatility rather than exchange-rate levels. Our empirical investigation detects regimes of high and low volatility alternating in a way that is consistent with a...