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Diagnostic tests for homoskedasticity in spatial cross-sectional or panel models
Baltagi, Badi H.; Pirotte, Alain; Yang, Zhenlin - 2020
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/10012305035
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Consistent estimation of linear panel data models with measurement error
Meijer, Erik; Spierdijk, Laura; Wansbeek, Tom - 2015
) heteroskedasticity and nonlinearity in the relation between the error-ridden covariate and another, error-free, covariate in the equation …
Persistent link: https://www.econbiz.de/10010472669
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Instrumental variable estimation with heteroskedasticity and many instruments
Hausman, Jerry A.; Newey, Whitney K.; Woutersen, Tiemen; … - 2010
allowance for heteroskedasticity is generally important. The solution is a Fuller (1977) like estimator and standard errors that … are robust to heteroskedasticity and many instruments. We show that the estimator has finite moments and high asymptotic … homoskedasticity, and have much lower bias and dispersion under heteroskedasticity, in nearly all cases considered. -- Instrumental …
Persistent link: https://www.econbiz.de/10008668817
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Instrumental variable estimation with heteroskedasticity and many instruments
Hausman, Jerry A.; Newey, Whitney K.; Woutersen, Tiemen; … - 2011 - Rev.
allowance for heteroskedasticity is generally important. The solution is a Fuller (1977) like estimator and standard errors that … are robust to heteroskedasticity and many instruments. We show that the estimator has finite moments and high asymptotic … homoskedasticity, and have much lower bias and dispersion under heteroskedasticity, in nearly all cases considered. -- Instrumental …
Persistent link: https://www.econbiz.de/10009130702
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Panel data gravity models of international trade
Baltagi, Badi H.; Egger, Peter; Pfaffermayr, Michael - 2014
One of the oldest and largest literatures in empirical economics is concerned with the estimation of demand and supply of goods, services, and factors across national or subnational borders (see Leamer and Levinsohn, 1995). The respective empirical models specified and estimated are often...
Persistent link: https://www.econbiz.de/10010237192
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A robust approach to heteroskedasticity, error serial correlation and slope heterogeneity for large linear panel data models with interactive effects
Hayakawa, Kazuhiko; Nagata, Shuichi; Yamagata, Takashi - 2018
In this paper, we propose a robust approach against heteroskedasticity, error serial correlation and slope … used panel heteroskedasticity and autocorrelation consistent (HAC) variance estimator of the pooled estimator under random …
Persistent link: https://www.econbiz.de/10011879510
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Getting PPP right : identifying mean-reverting real exchange rates in panels
Chortareas, Georgios E. (contributor);  … - 2008
Recent advances in testing for the validity of Purchasing Power Parity (PPP) focus on the time series properties of real exchange rates in panel frameworks. One weakness of such tests, however, is that they fail to inform the researcher as to which cross-section units are stationary. As a...
Persistent link: https://www.econbiz.de/10003740322
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An intersection test for panel unit roots
Hanck, Christoph - 2008
This paper proposes a new panel unit root test based on Simes' [Biometrika 1986, An Improved Bonferroni Procedure for Multiple Tests of Significanceʺ] classical intersection test. The test is robust to general patterns of cross-sectional dependence and yet straightforward to implement, only...
Persistent link: https://www.econbiz.de/10003835930
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The effects of variance breaks on homogenous panel unit root tests
Herwartz, Helmut; Siedenburg, Florian - 2009
Noting that many economic variables display occasional shifts in their second order moments, we investigate the performance of homogenous panel unit root tests in the presence of permanent volatility shifts. It is shown that in this case, panel unit root tests derived under time invariant...
Persistent link: https://www.econbiz.de/10003887238
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A panel granger-causality test of endogenous vs. exogenous growth
Hartwig, Jochen - 2009
The paper proposes a new test of endogenous vs. exogenous growth theories based on the Granger-causality methodology and applies it to a panel of 20 OECD countries. The test yields divergent evidence with respect to physical and human capital. For physical capital, the test results favor...
Persistent link: https://www.econbiz.de/10003909635