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hedging strategies by a nonlinear version of the Black-Scholes PDE. The core of the paper consists of a simulation study. We … new explanation of the smile pattern of implied volatility related to the lack of market liquidity. Finally we present …
Persistent link: https://www.econbiz.de/10005859384
simultaneous modeling of stochastic correlation and volatility. The solutions of the model are in closed form and include an … correlation risk is a non-negligible fraction of the myopic portfolio, which often dominates the pure volatility hedging demand …
Persistent link: https://www.econbiz.de/10005858523
This paper examines latent risk factors in models for migration risk. We employ thestandard statistical framework for ordered categorical variables and induce dependencebetween migrations by means of latent risk factors. By assuming a Markov process forthe dynamics of the latent factors, the...
Persistent link: https://www.econbiz.de/10005857974
admitting multivariate thresholds in conditional volatilitiesand correlations. The model estimation is feasible in large … volatility functions of stock returns exhibit pronounced GARCH and threshold features, their conditional correlation dynamics …
Persistent link: https://www.econbiz.de/10005858198
and confidence intervals. The approach is based on a Functional Gradient Descent (FGD) estimation of the conditional mean … filtered historical simulation to compute reliable out-of-sample yield curve scenarios and confidenceintervals. We back-test our …
Persistent link: https://www.econbiz.de/10005858199
Based on the APARCH model and two outlier detection methods, we computereliable time series of volatility asymmetry for … mostcountries. We nd that economic development and market capitalization/GDP arethe most important factors that increase volatility …
Persistent link: https://www.econbiz.de/10009022138
We study the exponential utility indifference valuation of a contingent claim B in an incomplete market driven by two Brownian motions. The claim depends on a nontradable asset stochastically correlated with the traded asset available for hedging. We use martingale arguments to provide upper and...
Persistent link: https://www.econbiz.de/10005857735
individual parameters, the dynamics of the aggregate volatility involves additional lags that reflect the moments of the …, based on nonlinear least squares. A simulation study reveals that this aggregation-corrected estimator performs very well …
Persistent link: https://www.econbiz.de/10005857736
price volatility and “sentiment” fluctuations. We construct a general-equilibrium model of sentiment. In it, there are two …
Persistent link: https://www.econbiz.de/10005857774
discuss the relations between the results obtained and the phenomenon of ”volatility-induced growth” in stationary markets. …
Persistent link: https://www.econbiz.de/10005857775