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Platen, Eckhard; Schweizer, Martin - University of Bonn, Germany - 1994

This paper proposes a new explanation for the smile and skewness effects in implied volatilities. Starting from a …

Persistent link: https://www.econbiz.de/10004968203

Recent Developments in Financial Economics and Econometrics: An Overview

Chang, Chia-Lin; Allen, David; McAleer, Michael - Tinbergen Instituut - 2013

, with evidence from listed firms in Taiwan, pricing options on stocks denominated in different currencies, with theory and … simple model free volatility in a high frequency world, arbitrage-free implied volatility surfaces for options on single … stock futures, the non-uniform pricing effect of employee stock options using quantile regression, nonlinear dynamics and …

Persistent link: https://www.econbiz.de/10011256871

Optional decomposition of supermartingales and hedging contingent claims in incomplete security markets

Kramkov, D.O. - University of Bonn, Germany - 1994

Let M(X) be a family of all equivalent local martingale measures for some locally bounded d-dimensional process X, and V be a positive process. Main result of the paper (Theorem 2.1) states that the process V is a supermartingale whatever Q in M(X), if and only if this process admits the...

Persistent link: https://www.econbiz.de/10004968206

A Market Model for Stochastic Implied Volatility

Schönbucher, Philpp J. - University of Bonn, Germany

implied Black-Scholes volatilities of a set of given standard options. Thus the model is able to capture the stochastic …

Persistent link: https://www.econbiz.de/10004968281

The Pricing of Derivatives on Assets with Quadratic Volatility

Zühlsdorff, Christian - University of Bonn, Germany - 2002

The basic model of financial economics is the Samuelson model of geometric Brownian motion because of the celebrated Black-Scholes formula for pricing the call option. The asset's volatility is a linear function of the asset value and the model garantees positive asset prices. In this paper it...

Persistent link: https://www.econbiz.de/10004968438

Bayesian Estimation of the GARCH(1,1) Model with Student-t Innovations

Ardia, David; Hoogerheide, Lennart F. - Tinbergen Instituut - 2010

This note presents the R package bayesGARCH (Ardia, 2007) which provides functions for the Bayesian estimation of the parsimonious and effective GARCH(1,1) model with Student-<I>t</I> innovations. The estimation procedure is fully automatic and thus avoids the tedious task of tuning a MCMC sampling...</i>

Persistent link: https://www.econbiz.de/10011256998

The Impact of Effect Size Heterogeneity on Meta-Analysis: A Monte Carlo Experiment

Koetse, Mark J.; Florax, Raymond J.G.M.; Groot, Henri … - Tinbergen Instituut - 2007

In this paper we use Monte Carlo simulation to investigate the impact of effect size heterogeneity on the results of a meta-analysis. Specifically, we address the small sample behaviour of the OLS, the fixed effects regression and the mixed effects meta-estimators under three alternative...

Persistent link: https://www.econbiz.de/10011256468

Correcting for Primary Study Misspecifications in Meta-Analysis

Koetse, Mark J.; Florax, Raymond J.G.M.; Groot, Henri … - Tinbergen Instituut - 2005

In non-experimental sciences the errors associated with model misspecifications in primarystudies carry over to meta-analysis. We use Monte Carlo simulations to analyse the effects ofthese misspecifications on results of a meta-analysis using a meta-estimator that calculates asimple average...

Persistent link: https://www.econbiz.de/10011256967

Prediction Error Learning and Rational Expectations in Autoregressive Models with Forecast Feedback

Zenner, M. - University of Bonn, Germany - 1994

The rational expectations hypothesis is supported if rational expectations are stable with respect to reasonable learning procedures. We consider the Stochastic Gradient-Algorithm as a boundedly rational learning procedure in an univariate ARX-Model with forecast feedback. We prove that whenever...

Persistent link: https://www.econbiz.de/10004968237

OLS--Learning in Non-Stationary Models with Forecast Feedback

Zenner, Markus - University of Bonn, Germany - 1995

In this study we consider a linear model with forecast feedback in which boundedly rational agents are learning the parameter values of the rational expectations equilibrium by the OLS learning procedure. We show strong consistency of the OLS estimates under much weaker assumptions on the...

Persistent link: https://www.econbiz.de/10004968302

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