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stochastic volatility. Our approach uses linear regression to reduce the dimension of the numerical optimization problem yet it … cross-section of yields well but not volatility while unspanned models fit volatility at the expense of fitting the cross-section …
Persistent link: https://www.econbiz.de/10012458545
We develop a tractable and flexible stochastic volatility multi-factor model of the term structure of interest rates …
Persistent link: https://www.econbiz.de/10012466328
We develop and implement a new method for maximum likelihood estimation in closed-form of stochastic volatility models … unobservable volatility state, to an approximate likelihood procedure where the volatility state is replaced by the implied … volatility of a short dated at-the-money option. We find that the approximation results in a negligible loss of accuracy. We …
Persistent link: https://www.econbiz.de/10012468114
We present a novel empirical benchmark for analyzing credit risk using "pseudo firms" that purchase traded assets financed with equity and zero-coupon bonds. By no-arbitrage, pseudo bonds are equivalent to Treasuries minus put options on pseudo-firm assets. Empirically, like corporate spreads,...
Persistent link: https://www.econbiz.de/10012457890
-pricing perspective, e.g., negative skewness and excess kurtosis for asset returns, volatility 'smiles' for option prices. We perform …
Persistent link: https://www.econbiz.de/10012473518
The notion of model-free implied volatility (MFIV), constituting the basis for the highly publicized VIX volatility … more compatible with the related concept of corridor implied volatility (CIV). We provide a comprehensive derivation of the … CIV measure and relate it to MFIV under general assumptions. In addition, we price the various volatility contracts, and …
Persistent link: https://www.econbiz.de/10012465200
-style models and models in which the state variables are the stochastic long-run mean and volatility of r. Third, we compute …
Persistent link: https://www.econbiz.de/10012472684
The equity premium, namely the expected return on the aggregate stock market less the government bill rate, is of central importance to the portfolio allocation of individuals, to the investment decisions of firms, and to model calibration and testing. This quantity is usually estimated from the...
Persistent link: https://www.econbiz.de/10012458978
This paper uses the invariance principle to solve the incidental parameter problem. We seek group actions that preserve the structural parameter and yield a maximal invariant in the parameter space with fixed dimension. M-estimation from the likelihood of the maximal invariant statistic yields...
Persistent link: https://www.econbiz.de/10012464860
A well known result is that the Gaussian log-likelihood can be expressed as the sum over different frequency components. This implies that the likelihood ratio statistic has a similar linear decomposition. We exploit these observations to devise diagnostic methods that are useful for...
Persistent link: https://www.econbiz.de/10012471773