Showing 1 - 10 of 13
In binary discrete regression models like logit or probit the omis-sion of a relevant regressor (even if it is orthogonal) depresses the re-maining b coefficients towards zero. For the probit model, Wooldridge(2002) has shown that this bias does not carry over to the effect ofthe regressor on...
Persistent link: https://www.econbiz.de/10011256004
This paper addresses the issue of technogenesis and its geographical pattern. It aims to offer both a general analysis framework and a test on innovation data from several European cities. This framework is mainly built on the product life-cycle and the incubation approach. On the basis of this...
Persistent link: https://www.econbiz.de/10011256373
311-323.<P> Various economic theories are available to explain the existence of credit and default cycles. There remains …-up that they do, or at least that defaults and credit spreads tend to co-move with macro-economic variables. If true, this is … important for credit risk management as well as for regulation and systemic risk management. In this paper, we use 1927-1997 U …
Persistent link: https://www.econbiz.de/10011255530
circumstances. The model, which measures additional bank capital required to compensate for fluctuating credit risk, is a novel …
Persistent link: https://www.econbiz.de/10011255629
sample behavior of the resulting estimators. We use these new estimators for dealing with a central issue in credit risk. We … dataset on credit ratings from Standard & Poor's. …
Persistent link: https://www.econbiz.de/10011255640
We develop a new parameter stability test against the alternative of observation driven generalized autoregressive score dynamics. The new test generalizes the ARCH-LM test of Engle (1982) to settings beyond time-varying volatility and exploits any autocorrelation in the likelihood scores under...
Persistent link: https://www.econbiz.de/10011255854
We investigate the effect of model specification on the aggregation of (correlated) market and credit risk. We focus on … the functional form linking systematic credit risk drivers to default probabilities. Examples include the normal based … credit risk. The specification effect can lead to Value-at-Risk (VaR) reductions in the range of 3 percent to 47 percent …
Persistent link: https://www.econbiz.de/10011256003
This discussion paper led to an article in the <I>Journal of Business and Economic Statistics</I> (2008). Vol. 26, issue 4, pages 510-525.<p> We model 1981–2002 annual US default frequencies for a panel of firms in different rating and age classes. The data is decomposed into a systematic and...</p></i>
Persistent link: https://www.econbiz.de/10011256141
movements in default probabilities and default correlations. Our findings have important implications for portfolio credit risk … analysis. First, a static analysis of portfolio credit risk can underestimate credit risk significantly by not accounting for … actual credit risk experiment, addressing the issue of pro-cyclicality in ratings and capital buffer formation. It turns out …
Persistent link: https://www.econbiz.de/10011256775
improved risk management during the global financial crisis, the role of banking regulation in an economy under credit risk and …
Persistent link: https://www.econbiz.de/10011256871