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estimator continues to be consistent even in the presence of cross-sectional heteroskedasticity. We also obtain standard errors … that are robust to cross-sectional heteroskedasticity of unknown form. By means of Monte Carlo simulation, we investigate …
Persistent link: https://www.econbiz.de/10013105008
We propose an Adjusted Quasi-Score (AQS) method for constructing tests for homoskedasticity in spatial econometric models. We first obtain an AQS function by adjusting the score-type function from the given model to achieve unbiasedness, and then develop an Outer-Product-of-Martingale-Difference...
Persistent link: https://www.econbiz.de/10013315158
heteroskedasticity-robust standard errors. This paper develops the "fixed-bandwidth" alternative asymptotic theory for RD designs, which … there is local heteroskedasticity. Feasible estimators of fixed-bandwidth standard errors are easy to implement and are akin … to treating RD estimators as locally parametric, validating the common empirical practice of using heteroskedasticity …
Persistent link: https://www.econbiz.de/10012917093
This paper is concerned with testing the time series implications of the capital asset pricing model (CAPM) due to Sharpe (1964) and Lintner (1965), when the number of securities, N, is large relative to the time dimension, T, of the return series. In the case of cross-sectionally correlated...
Persistent link: https://www.econbiz.de/10013107698
This paper considers testing the hypothesis that errors in a panel data model are weakly cross sectionally dependent, using the exponent of cross-sectional dependence α, introduced recently in Bailey, Kapetanios and Pesaran (2012). It is shown that the implicit null of the CD test depends on...
Persistent link: https://www.econbiz.de/10013108232
Researchers are often interested in estimating the causal effect of some treatment on individual criminality. For example, two recent relatively prominent papers have attempted to estimate the respective direct effects of marriage and gang participation on individual criminal activity. One...
Persistent link: https://www.econbiz.de/10013155604
The presence of cross-sectionally correlated error terms invalidates much inferential theory of panel data models. Recently work by Pesaran (2006) has suggested a method which makes use of cross-sectional averages to provide valid inference for stationary panel regressions with multifactor error...
Persistent link: https://www.econbiz.de/10013317495
In this paper we discuss tests for residual cross section dependence in nonlinear panel data models. The tests are based on average pair-wise residual correlation coefficients. In nonlinear models, the definition of the residual is ambiguous and we consider two approaches: deviations of the...
Persistent link: https://www.econbiz.de/10014051110
We study the causal relation between private wealth and retirement age. We propose two estimation strategies based on expected retirement age. The outcome variable is observed repeatedly over time. We correct first for the unobserved heterogeneity in the disutility of work by using panel data...
Persistent link: https://www.econbiz.de/10013135647
An emerging literature on international activities of heterogeneous firms documents that exporting firms are more productive than firms that only sell on the national market. This positive exporter productivity premium shows up in a large number of empirical studies after controlling for...
Persistent link: https://www.econbiz.de/10013139057