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A dynamical model is proposed to study sediment transport in river networks. A river can be divided into segments by the injection of branch streams of higher rank. The model is based on the fact that in a real river, the sediment-carrying capability of the stream in the ith segment may be...
Persistent link: https://www.econbiz.de/10011059311
Based on local erosion rule and fluctuations in rainfall, geology and parameters of a river channel, a generalized Langevin equation is proposed to describe the random prolongation of a river channel. This equation is transformed into the Fokker–Plank equation to follow the early evolution of...
Persistent link: https://www.econbiz.de/10011060801
Purpose The purpose of this paper is to estimate the effects of liquidity on corporate bond spreads. Design/methodology/approach Using a systematic liquidity factor extracted from the yield spreads between on- and off-the-run Treasury issues as a state variable, the authors jointly estimate the...
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Previous studies have found that common factors explain a high proportion of corporate bond yields. In this paper, we test whether there is a systematic risk premium beyond that implied by a risk-neutral term structure model. We propose a reduced-form term structure model that incorporates both...
Persistent link: https://www.econbiz.de/10005394581
In this paper, we investigate the predictability of corporate bond excess returns using a comprehensive data sample for the period from January 1973 to December 2010. We find that corporate bond returns are more predictable than stock returns, and the predictability tends to be higher for...
Persistent link: https://www.econbiz.de/10011116724