Showing 1 - 10 of 11,045
dependence between possibly endogenous explanatory variables and disturbances in a linear structural equation (endogeneity … parameters). We focus on second-order dependence and stress the distinction between regression and covariance endogeneity … with least-squares methods). We observe that endogeneity parameters may not be identifiable and we give the relevant …
Persistent link: https://www.econbiz.de/10011107877
dependence between possibly endogenous explanatory variables and disturbances in a linear structural equation (endogeneity … parameters). We focus on second-order dependence and stress the distinction between regression and covariance endogeneity … with least-square methods). We observe that endogeneity parameters may not be identifiable and we give the relevant …
Persistent link: https://www.econbiz.de/10010894992
dependence between possibly endogenous explanatory variables and disturbances in a linear structural equation (endogeneity … parameters). We focus on second-order dependence and stress the distinction between regression and covariance endogeneity … with least-squares methods). We observe that endogeneity parameters may not identifiable and we give the relevant …
Persistent link: https://www.econbiz.de/10010835571
We propose a general test for exogeneity that is robust against distributional misspecification. The test can also be used to identify other types of misspecifications, such as the presence of a random coefficient. The idea is to sort the data with respect to a variable (a sorting score) and...
Persistent link: https://www.econbiz.de/10005207254
This paper investigates the asymptotic validity of the bootstrap for Durbin-Wu-Hausman (DWH) specification tests when instrumental variables (IVs) may be arbitrary weak. It is shown that under strong identification, the bootstrap offers a better approximation than the usual asymptotic chi-square...
Persistent link: https://www.econbiz.de/10011109415
This paper investigates the asymptotic validity of the bootstrap for Durbin-WuHausman (DWH) specification tests when instrumental variables (IVs) may be arbitrary weak. It is shown that under strong identification, the bootstrap offers a better approximation than the usual asymptotic 2...
Persistent link: https://www.econbiz.de/10010905845
alternative hypothesis if the endogeneity parameter is fixed. However, the bootstrap only provides a first-order approximation of … sufficient condition under which the proposed bootstrap DWH tests exhibit power under fixed endogeneity and weak instruments. The …
Persistent link: https://www.econbiz.de/10010945123
We focus on the classical linear simultaneous equations models and study the sensitivity to instrument endogeneity of … instrument endogeneity: (i) fixed instrument endogeneity, i.e., the parameter that controls instrument invalidity is fixed (does … not depend on the sample size); (ii) local-to-zero instrument endogeneity, i.e., this parameter goes to zero at rate [n^1 …
Persistent link: https://www.econbiz.de/10010959883
We consider the following problem. A structural equation of interest contains two sets of explanatory variables which economic theory predicts may be endogenous. The researcher is interesting in testing the exogeneity of only one of them. Standard exogeneity tests are in general unreliable from...
Persistent link: https://www.econbiz.de/10010835578
This paper proposes finite-sample procedures for testing the SURE specification in multi-equation regression models, i.e. whether the disturbances in different equations are contemporaneously uncorrelated or not. We apply the technique of Monte Carlo (MC) tests [Dwass (1957), Barnard (1963)] to...
Persistent link: https://www.econbiz.de/10005100560