Showing 91 - 100 of 529
Regulators often set value-at-risk (VaR) constraints to limit the portfolio risk of institutional investors. For some investors, notably pension funds, the VaR constraint is enforced over a horizon which is significantly shorter than the investment horizon of the investor. Our paper aims to...
Persistent link: https://www.econbiz.de/10013116262
We propose a structural model for durations between events and (a vector of) associated marks, using a multivariate Brownian motion. Successive passage times of one latent Brownian component relative to random boundaries define durations. The other, correlated, Brownian components generate the...
Persistent link: https://www.econbiz.de/10013065459
We study the effect of bank loan announcements on the borrowing firms' bond and equity prices. Our sample consists of 896 loan deals signed between 1997 to 2003 involving 364 different U.S. firms. We report the first comprehensive evidence that also firm bond prices react to bank loan...
Persistent link: https://www.econbiz.de/10012721429
We study the optimal consumption and portfolio choice problem over an individual's life-cycle taking into account annuity risk at retirement. Optimally, the investor allocates wealth at retirement to nominal, inflation-linked, and variable annuities and conditions this choice on the state of the...
Persistent link: https://www.econbiz.de/10012721652
We study the economic importance of time-varying bond risk premia in a life-cycle consumption and portfolio-choice problem for an investor facing short-sales and borrowing constraints. On average, the investor is able to time bond markets only as of age~45. Tilts in the optimal asset allocation...
Persistent link: https://www.econbiz.de/10012721742
At the heart of the copula methodology in statistics is the idea of separating marginal distributions from the dependence structure. However, as shown in this paper, this separation is not to be taken for granted: in the model where the copula is known and the marginal distributions are...
Persistent link: https://www.econbiz.de/10012724542
We rigorously explain the numerical approach used in the above-mentioned paper. The methodology is based on Brandt, Goyal, Santa-Clara, and Stroud (2005) (Review of Financial Studies) and Carroll (2006) (Economics Letters). In addition to combining these numerical techniques, we suggest two...
Persistent link: https://www.econbiz.de/10012726835
Summary. This note reconsiders the nonnegative integer-valued bilinear processes introduced by Doukhan, Latour, and Oraichi (2006). Using a hidden Markov argument, we extend their result of the existence of a stationary solution for the INBL(1,0,1,1) process to the class of superdiagonal INBL(p;...
Persistent link: https://www.econbiz.de/10012729484
This paper considers integer-valued autoregressive processes where the autoregression parameter is close to unity. We consider the asymptotics of this 'near unit root' situation. The local asymptotic structure of the likelihood ratios of the model is obtained, showing that the limit experiment...
Persistent link: https://www.econbiz.de/10012733516
This paper investigates the effect of overnight trading halts on option prices. We model overnight returns by a pure jump process. Intraday returns follow the literature's standard models by allowing for stochastic volatility and a random jump component. We find that neither the intraday random...
Persistent link: https://www.econbiz.de/10012738071