This paper deals with the superhedging of derivatives on incomplete markets, i.e. with portfolio strategies which generate payoffs at least as high as that of a given contingent claim. The simplest solution to this problem is in many cases a static superhedge, i.e. a buy-and-hold strategy...

This paper provides a theoretical and numerical analysis of robust hedging strategies in diffusion type models including stochastic volatility models. A robust hedging strategy avoids any losses as long as thec realised volatility stays within a given interval. We focus on the effects of...

When options are traded, one can use their prices and price changes to draw inference about the set of risk factors and their risk premia. We analyze tests for the existence and the sign of the market prices of jump risk that are based on option hedging errors. We derive a closed-form solution...

It does. Depending on the forecast horizon, a one standard deviation increase in our measure for ambiguity about consumption volatility predicts a significant increase in average excess equity returns varying between 200 and 600 basis points annualized. The ambiguity measure we propose is easily...

Close-to-zero interest rates challenge standard economic models in which zero lower bound (ZLB) is absent. We estimate a recursive utility model which features time-varying latent expected real growth, expected inflation, and stochastic inflation volatility. Using an approximate solution to bond...

Uncertainty and monetary policy decisions in the U.S. interact with one another. Contrary to the common notion that FOMC announcements resolve a non-trivial amount of economic uncertainty, we find that the announcement commands a sizable left-tail premium, which builds up a few days in advance....

Bei Marktunvollständigkeit stößt die arbitrageorientierte Bewertung von Derivaten an ihre Grenzen. Eine eindeutige Bewertung nicht redundanter Derivate ist nicht mehr möglich. Zur Bestimmung einer Bewertungsfunktion müssen daher zusätzliche Annahmen getroffen werden. Nicole Branger...

We study a long-run risk model with a stochastic consumption growth rate, a stochastic volatility, a stochastic jump intensity, and a stochastic mean reversion level for the latter two processes. First, using a square-root specification instead of the Ornstein-Uhlenbeck process suggested by...

This paper examines whether and how the popularity of portfolio insurance strategies can be justified theoretically. The analysis employs three different return generating processes with and without stochastic volatility and jumps. We find that an investor with constant relative risk aversion...

We study the implications of the quality of information about the business cycle for the pricing of defensive and cyclical stocks in a general equilibrium framework. We rely on a two-tree Lucas-style endowment economy in which the business cycle is modeled as an unobservable mean reverting...