In this paper we analyze in what way the demand generated by dynamic hedging strategies affects the equilibrium prices of the underlying asset. We derive an explicit expression for the transformation of market volatility under the impact of hedging. It turns out that market volatility increases...

We study a new class of three-factor affine option pricing models with interdependent volatilitydynamics and a stochastic skewness component unrelated to volatility shocks. Theseproperties are useful in order (i) to model a term structure of implied volatility skews moreconsistent with the data...

An vielen Börsen sind heute elektronische Handelssysteme im Einsatz, die nach dem Auktionsprinzip funktionieren. Limitierte Aufträge werden dabei in einem Orderbuch zusammengefaßt, das von den Handelsteilnehmern eingesehen werden kann. In vielen Handelssystemen (darunter Xetra) werden dabei...

We analyse questions of arbitrage in financial markets in which asset prices change in time as stationary stochastic processes. The main focus of the paper is on a model where the price vectors are independent and identically distributed. In the framework of this model, we find conditions that...

A theory is developed that explains how the stock market can crash inthe absence of news about fundamentals, and why crashes are more commonthan frenzies. A crash occurs via the interaction of rational and naive investors.Naive traders believe in a simple (but reasonable) statistical modelof...

The long memory characteristic of financial market volatility is well documentedand has important implications for volatility forecasting and optionpricing. When fitted to the same data, different volatility models calculate theunconditional variance differently and could have very different...

In this survey we discuss models with level-dependent and stochastic volatility from the viewpoint of derivative asset analysis. Both classes of models are generalisations of the classical Black-Scholes model; they have been developed in an effort to build models that are flexible enough to cope...

This paper analyzes optimal portfolio choice and consumption with stochastic volatility in incomplete markets.

This paper estimates a trivariate two-factor conditional version of the Intertemporal CAPM of Merton (1973).

The aim of this paper is to accommodating the existing affine jump- diffusion and quadratic models under the same roof, namely the linear-quadratic jump-diffusion (LQJD) class.