Narrow search
Showing 1 - 10 of 6,461
Cover Image
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
Cover Image
Heteroskedasticity in one-way error component probit models
Moussa, Richard Kouamé - In: Econometrics : open access journal 7 (2019) 3/35, pp. 1-22
This paper introduces an estimation procedure for a random effects probit model in presence of heteroskedasticity and a … likelihood ratio test for homoskedasticity. The cases where the heteroskedasticity is due to individual effects or idiosyncratic … heteroskedasticity. Furthermore, the power of the test increases with larger individual and time dimensions. The robustness analysis …
Persistent link: https://www.econbiz.de/10012160867
Cover Image
Fixed Effects and Random Effects Estimation of Higher-Order Spatial Autoregressive Models with Spatial Autoregressive and Heteroskedastic Disturbances
Badinger, Harald - 2014
panel data models with spatial autoregressive disturbances and heteroskedasticity of unknown form in the idiosyncratic error … heteroskedasticity of unknown form in the idiosyncratic error component. Finally, we derive a robust Hausman-test of the spatial random …
Persistent link: https://www.econbiz.de/10013051285
Cover Image
Instrumental variable estimation with heteroskedasticity and many instruments
Hausman, Jerry A.; Newey, Whitney K.; Woutersen, Tiemen; … - 2011
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. …
Persistent link: https://www.econbiz.de/10010282870
Cover Image
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
Cover Image
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
Cover Image
Latent Factor Analysis in Short Panels
Fortin, Alain-Philippe; Gagliardini, Patrick; Scaillet, … - 2023
We develop inferential tools for latent factor analysis in short panels. The pseudo maximum likelihood setting under a large cross-sectional dimension n and a fixed time series dimension T relies on a diagonal T x T covariance matrix of the errors without imposing sphericity or Gaussianity. We...
Persistent link: https://www.econbiz.de/10014350141
Cover Image
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
Cover Image
Specification and estimation of random effects models with serial correlation of general form
Skoglund, Jimmy; Karlsson, Sune - 2001
This paper is concerned with maximum likelihood based inference in random effects models with serial correlation. Allowing for individual effects we introduce serial correlation of general form in the time effects as well as the idiosyncratic errors. A straightforward maximum likelihood...
Persistent link: https://www.econbiz.de/10010281265
Cover Image
Asymptotic properties of the maximum likelihood estimator of random effects models with serial correlation
Skoglund, Jimmy; Karlsson, Sune - 2001
This paper considers the large sample behavior of the maximum likelihood estimator of random effects models with serial correlation in the form of AR(1) for the idiosyncratic or time-specific error component. Consistent estimation and asymptotic normality as N and/or T grows large is established...
Persistent link: https://www.econbiz.de/10010281303