Showing 1 - 10 of 34
We find that firm-level variance risk premium, estimated as the difference between option-implied and expected variances, has a prominent explanatory power for credit spreads in the presence of market- and firm-level risk control variables identified in the existing literature. Such a...
Persistent link: https://www.econbiz.de/10013118597
The Sato process model for option prices is expanded to accomodate credit considerations by incorporating a single jump to default occuring at an independent random time with a Weibull distribution. Explicit formulas for bid and ask prices are derived. Liquidity considerations are captured by...
Persistent link: https://www.econbiz.de/10013131024
This paper presents an option positioning that allows us to infer forward variances from option portfolios. The forward variances we construct from equity index options help to predict (i) growth in measures of real economic activity, (ii) Treasury bill returns, (iii) stock market returns, and...
Persistent link: https://www.econbiz.de/10013116049
We develop two novel approaches to solving for the Laplace transform of a time-changed stochastic process. We discard the standard assumption that the background process (X<sub>t</sub>) is Levy. Maintaining the assumption that the business clock (T<sub>t</sub>) and the background process are independent, we develop...
Persistent link: https://www.econbiz.de/10013083784
When the pricing kernel is U-shaped, then expected returns of claims with payout on the upside are negative for strikes beyond a threshold, determined by the slope of the U-shaped kernel in its increasing region, and have negative partial derivative with respect to strike in the increasing...
Persistent link: https://www.econbiz.de/10012940716
Allowing for correlated squared returns across two consecutive periods, portfolio theory for two periods is developed. This correlation makes it necessary to work with non-Gaussian models. The two period conic portfolio problem is formulated and implemented. This development leads to a mean ask...
Persistent link: https://www.econbiz.de/10013004140
Minimal discounted distorted expectations across a range of stress levels are employed to model risk acceptability in markets. Interactions between discounting and stress levels used in measure changes are accommodated by lowering discount rates for the higher stress levels. Acceptability...
Persistent link: https://www.econbiz.de/10013056450
Three particular models of dependence in asset returns with non-Gaussian marginals are investigated on daily return data for sector exchange traded funds. The first model is a full rank Gaussian copula (FGC). The second models returns as a linear mixture of independent Lévy processes (LML). The...
Persistent link: https://www.econbiz.de/10013018786
Models of dependence in asset returns with non-Gaussian marginals are investigated on ETF daily return data. The first is a full rank Gaussian copula. The second is a linear mixture of independent Lévy processes. The third correlates Gaussian components in a variance gamma representation. On a...
Persistent link: https://www.econbiz.de/10013148693
We investigate how market participants price and manage counterparty risk in the post-crisis period using confidential trade repository data on single-name credit default swap (CDS) transactions. We find that counterparty risk has a modest impact on the pricing of CDS contracts, but a large...
Persistent link: https://www.econbiz.de/10011578787