Showing 181 - 190 of 87,139
maximizing test p-values and inherit robustness properties from the generating distribution-free tests. Both finite-sample and …
Persistent link: https://www.econbiz.de/10012962776
We study the distribution of Durbin-Wu-Hausman (DWH) and Revankar-Hartley (RH) tests for exogeneity from a finite-sample viewpoint, under the null and alternative hypotheses. We consider linear structural models with possibly non-Gaussian errors, where structural parameters may not be identified...
Persistent link: https://www.econbiz.de/10012966708
The equal-risk-contribution, inverse-volatility weighted, maximum-diversification and minimum-variance portfolio weights are all direct functions of the estimated covariance matrix. We perform a Monte Carlo study to assess the impact of covariance matrix misspecification to these risk-based...
Persistent link: https://www.econbiz.de/10012971143
This paper gives an alternative derivation of a Monte Carlo method that has been used to study robust estimators. Extensions of the technique to the regression case are also considered and some computational points are briefly mentioned
Persistent link: https://www.econbiz.de/10013219725
robustness properties of parametric estimators in these models have not been formally studied. In this paper, we derive the …) and prove their non-robustness to small but harmful deviations from distributional assumptions. We propose a procedure to …
Persistent link: https://www.econbiz.de/10013241199
In this paper, we present a generic framework known as the minimal partial proxy simulation scheme. This framework allows for a stable computation of the Monte-Carlo Greeks for financial products with trigger features via finite difference approximation. The minimal partial proxy simulation...
Persistent link: https://www.econbiz.de/10013134683
We develop the idea of using Monte Carlo sampling of random portfolios to solve portfolio investment problems. We explore the need for more general optimization tools, and consider the means by which constrained random portfolios may be generated. DeVroye's approach to sampling the interior of a...
Persistent link: https://www.econbiz.de/10013124340
A Bayesian model of developing aggregate loss triangles in property casualty insurance is introduced. This model makes use of a heteroskedastic and skewed t-likelihood with endogenous degrees of freedom, employs model averaging by means of Reversible Jump MCMC, and accommodates a structural...
Persistent link: https://www.econbiz.de/10013150371
This paper investigates the long-run effects of public debt and inflation on economic growth. Our contribution is both theoretical and empirical. On the theoretical side, we develop a cross-sectionally augmented distributed lag (CS-DL) approach to the estimation of long-run effects in dynamic...
Persistent link: https://www.econbiz.de/10013071384
This paper investigates the long-run effects of public debt and infl ation on economic growth. Our contribution is both theoretical and empirical. On the theoretical side, we develop a cross-sectionally augmented distributed lag (CS-DL) approach to the estimation of long-run effects in dynamic...
Persistent link: https://www.econbiz.de/10013072764