Showing 1 - 10 of 562
the variance of idiosyncratic returns. The estimation is performed on a time series of returns and option prices from 2006 …
Persistent link: https://www.econbiz.de/10011796505
This paper deals with asymptotically efficient estimation in exchangeable nonlinear dynamicpanel models with common unobservable factor. These models are especially relevantfor applications to large portfolios of credits, corporate bonds, or life insurance contracts, andare recommended in the...
Persistent link: https://www.econbiz.de/10009305085
The main result of the paper is a formula for zero time-to-maturity limit ofimplied volatilities of European options under a broad class of stochastic volatilitymodels. Based on this formula, we propose a closed-form approximation of theimplied volatility smile.[...]
Persistent link: https://www.econbiz.de/10005868991
We propose an affine term structure model which accommodates non-linearities in the drift and volatility function of the short-term interest rate. Such non-linearities are a consequence of discrete beta-distributed regime shifts constructed on multiple thresholds. We derive iterative closed form...
Persistent link: https://www.econbiz.de/10005858872
Risk management and asset pricing benefit from simple functional descriptions of the distribution of real asset returns. Recently, several authors have proposed that asset returns in real stock markets are distributed according to a hyperbolic distribution. While asset returns are generated by...
Persistent link: https://www.econbiz.de/10005858882
In this paper, we propose a model based on multivariate decomposition of multiplicative - absolute values and signs - components of several returns. In the m-variate case, the marginals for the m absolute values and the binary marginals for the m directions are linked through a 2m-dimensional...
Persistent link: https://www.econbiz.de/10011460618
This paper develops a closed form risk-neutral valuation model for pricing Europeanstyle options when the underlying has a mixture of transformed-normaldistributions. Specifically, we introduce the mixture of g distributions, which containsthe mixture of normal and lognormal distributions as a...
Persistent link: https://www.econbiz.de/10005870098
, andprovided a formal proof for the existence of the risk neutral valuation relationshipbetween option price and the gamma … distributed underlying asset. Closed formand preference free European option pricing formulae are derived for a variety of …(transformed) gamma distributions, and Heston’s (1993) model is obtained as aspecial case. The option pricing framework developed here …
Persistent link: https://www.econbiz.de/10005870109
applications to, e.g., multivariate option pricing with stochasticvolatilities and correlations, fixed-income models with …
Persistent link: https://www.econbiz.de/10009248844
In a Lucas orchard with heterogeneous beliefs, we study the link between market-wide uncertainty, difference of opinionsand co-movement of stock returns. We show that this link plays an important role in explaining the dynamics of equilibriumvolatility and correlation risk premia. In our...
Persistent link: https://www.econbiz.de/10009305103