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Families of minimax estimators are found for the location parameter of a p-variate (pgt; or = 3) spherically symmetric unimodal(s.s.u.)distribution with respect to general quadratic loss. The estimators of James and Stein, Baranchik, Bock and Strawderman are all considered for this general...
Persistent link: https://www.econbiz.de/10012780011
Following the framework found in Oliva et al. 1987, GEMCAT II implements a felxible method to test catastrophe models containing multivariate (i.e., latent) variables while allowing for a prioi variable specifications. The system uses an efficient hybrid minimization algorithm combining the...
Persistent link: https://www.econbiz.de/10012780497
This paper discusses how real-life statistical analysis/inference deviates from ideal environments. More specifically, there often exist models that have equal statistical power as the actual data-generating model, given only limited information and information processing/computation capacity....
Persistent link: https://www.econbiz.de/10012951928
Persistent link: https://www.econbiz.de/10012957028
This paper investigates the effects of the Sarbanes-Oxley Act (SOX) on CEO compensation, using panel data constructed for the S&P 1500 firms on CEO compensation, financial returns, and reported accounting income. Empirically SOX (i) changes the relationship between a firm's abnormal returns and...
Persistent link: https://www.econbiz.de/10012904043
We derive the asymptotic distribution of the parameters of the \citet{blp} (BLP) model in a many markets setting which takes into account simulation noise under the assumption of overlapping simulation draws. We show that as long as the number of simulation draws $R$ and the number of markets...
Persistent link: https://www.econbiz.de/10012904247
This report deals with the analysis of data used by tax officers to support their claim of tax fraud at a pizzeria. The possibilities of embezzlement under study are overreporting of take-away sales and underreporting of cash payments. Several modelling approaches are explored, ranging from...
Persistent link: https://www.econbiz.de/10012909009
This paper proposes new estimation techniques for gravity models with zero trade values and heteroscedasticity. We propose various Heckman estimators with different distributions of the residuals, nonlinear forms of both selection and measure equations, and various process of the variance. We...
Persistent link: https://www.econbiz.de/10012889139
Full paper is available at: "https://ssrn.com/abstract=3087336" https://ssrn.com/abstract=3087336.In this supplementary appendix to the paper Boudt, Cornilly and Verdonck (2019), we first provide a brief R tutorial for the proposed NC estimator. Then, we go into more detail about the shape of...
Persistent link: https://www.econbiz.de/10012897780
Indirect inference requires simulating realisations of endogenous variables from the model under study. When the endogenous variables are discontinuous functions of the model parameters, the resulting indirect inference criterion function is discontinuous and does not permit the use of...
Persistent link: https://www.econbiz.de/10012898586