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In Monte Carlo simulation, Latin hypercube sampling (LHS) [McKay et al. (1979)] is a well-known variance reduction technique for vectors of independent random variables. The method presented here, Latin hypercube sampling with dependence (LHSD), extends LHS to vectors of dependent random...
Persistent link: https://www.econbiz.de/10010301705
Starting from the Merton framework for firm defaults, we provide the analytics and robustness of the relationship between default correlations. We show that loans with higher default probabilities will not only have higher variances but also higher correlations between loans. As a consequence,...
Persistent link: https://www.econbiz.de/10010301737
Many economic and econometric applications require the integration of functions lacking a closed form antiderivative, which is therefore a task that can only be solved by numerical methods. We propose a new family of probability densities that can be used as substitutes and have the property of...
Persistent link: https://www.econbiz.de/10010301753
We use a compound option-based structural credit risk model to infer a term structure of banking crisis risk from market data on bank stocks in daily frequency. Considering debt service payments with different maturities this term structure assigns a separate estimator for short- and long-term...
Persistent link: https://www.econbiz.de/10010300362
The issue of measurement invariance commonly arises in factor-analytic contexts, with methods for assessment including likelihood ratio tests, Lagrange multiplier tests, and Wald tests. These tests all require advance definition of the number of groups, group membership, and offending model...
Persistent link: https://www.econbiz.de/10010294761
Tests of causality in variance in multiple time series have been proposed recently, based on residuals of estimated univariate models. Although such tests are applied frequently little is known about their power properties. In this paper we show that a convenient alternative to residual based...
Persistent link: https://www.econbiz.de/10010296228
Das in Finanzmarktdaten zu beobachtende volatility-clustering impliziert, daß große Renditeschocks bei der Preisbildung die Wahrscheinlichkeit einer hohen zukünftigen Volatilität steigern. Ausgehend von den von Engle (1982) vorgeschlagenen ARCH-Modellen hat sich eine ganze Reihe von...
Persistent link: https://www.econbiz.de/10010296494
The purpose of this paper is to propose a procedure for testing the equality of several regression curves fi in nonparametric regression models when the noise is inhomogeneous. This extends work of Dette and Neumeyer (2001) and it is shown that the new test is asymptotically uniformly more...
Persistent link: https://www.econbiz.de/10010296611
. Moreover, with slightly stronger conditions, in particular a zero drift-term, we find an asymptotic distribution theory. To …
Persistent link: https://www.econbiz.de/10010296680
The paper questions the reasonability of using forecast error variance decompositions for assessing the role of different structural shocks in business cycle fluctuations. It is shown that the forecast error variance decomposition is related to a dubious definition of the business cycle. A...
Persistent link: https://www.econbiz.de/10010298076