Market option prices in last 20 years confirmed deviations from the Black and Scholes (BS) models assumptions, especially on the BS implied volatility. Implied binomial trees (IBT) models capture the variations of the implied volatility known as volatility smile. They provide a discrete...

This paper aims to unify exotic option closed formulas by generalizing a large class of existing formulas and by setting a framework that allows for further generalizations. The formula presented covers options from the plain vanilla to most, if not all, mountain range exotic options and is...

The art market has seen boom and bust during the last years and, despite the downturn, has received more attention from investors given the low interest environment following the financial crisis. However, participation has been reserved for a few investors and the hedging of exposures remains...

In this paper we addressed the problem of determining the optimal replicating strategy for a European call option under differential transactions costs. We derived an upper boundary for the cost factor in a market where all Investors face the same factor. This upper boundary ensures the...

Shoven und Whalley, die Wegbereiter der angewandten Gleichgewichtsanalyse, haben in ihrem bekannten JEL-Übersichtsartikel von 1984 das Los der Gleichgewichtsmodellierer als ?jack of all trades? beklagt. Ziel unseres Beitrags ist es, angenehmere ?Wege zum Gleichgewicht? aufzuzeigen. Unser...

We study optimal monetary policy in a flexible state-dependent pricing framework, in which monopolistic competition and stochastic menu costs are the only distortions. We show analytically that it is optimal to commit to zero inflation in the long run. Moreover, our numerical simulations...

We compare the numerical methods that are most widely applied in the computation of the standard business cycle model with flexible labor. The numerical techniques imply economically insignificant differences with regard to business cycle summary statistics except for the volatility of...

We describe an algorithm that is able to compute the solution of a singular linear difference system under rational expectations. The algorithm uses the Generalized Schur Factorization and is illustrated by a simple example.

Wir beschreiben die Einsatzmöglichkeiten von numerischen Gleichgewichtsmodellen als Instrument zur Messung der Auswirkungen von Politikmaßnahmen auf die drei Dimensionen nachhaltiger Entwicklung: Ökologie, Ökonomie und soziale Gerechtigkeit. Diese Dimensionen sind eng miteinander verbunden...

This paper studies the econometrics of computed dynamic models. Since these models generally lack a closed-form solution, economists approximate the policy functions of the agents in the model with numerical methods. But this implies that, instead of the exact likelihood function, the researcher...