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Econometrics, Volume 11, Issue 4

2023 December - 6 articles

Cover Story: We provide new analytical results for the implementation of the Hausman specification test statistic in a standard panel data model. We show that the test statistic is unreliable in a finite sample if the variance of the Random Effects estimator is computed on the basis of the OLS estimation of the quasi-demeaned model rather than the conventional and direct implementation of the Feasible Generalized Least Squares. The difference between the two Hausman statistics computed under the two methods can be substantial and even lead to opposite conclusions for the test. Furthermore, we point out that the vast majority of econometric software implements, by default, the Hausman test using the unreliable statistic. We propose to supplement the test outcomes that are provided to circumvent this issue. View this paper
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Articles (6)

  • Article
  • Open Access
1 Citations
3,031 Views
44 Pages

This paper presents a new approach to constructing multistep combination forecasts in a nonstationary framework with stochastic and deterministic trends. Existing forecast combination approaches in the stationary setup typically target the in-sample...

  • Article
  • Open Access
3,797 Views
20 Pages

Liquidity and Business Cycles—With Occasional Disruptions

  • Willi Semmler,
  • Gabriel R. Padró Rosario and
  • Levent Koçkesen

Some financial disruptions that started in California, U.S., in March 2023, resulting in the closure of several medium-size U.S. banks, shed new light on the role of liquidity in business cycle dynamics. In the normal path of the business cycle, liqu...

  • Article
  • Open Access
10 Citations
4,302 Views
30 Pages

When It Counts—Econometric Identification of the Basic Factor Model Based on GLT Structures

  • Sylvia Frühwirth-Schnatter,
  • Darjus Hosszejni and
  • Hedibert Freitas Lopes

Despite the popularity of factor models with simple loading matrices, little attention has been given to formally address the identifiability of these models beyond standard rotation-based identification such as the positive lower triangular (PLT) co...

  • Article
  • Open Access
4 Citations
8,525 Views
28 Pages

We provide new analytical results for the implementation of the Hausman specification test statistic in a standard panel data model, comparing the version based on the estimators computed from the untransformed random effects model specification unde...

  • Article
  • Open Access
3,033 Views
32 Pages

In actuarial practice, the modeling of total losses tied to a certain policy is a nontrivial task due to complex distributional features. In the recent literature, the application of the Dirichlet process mixture for insurance loss has been proposed...

  • Article
  • Open Access
1 Citations
3,549 Views
11 Pages

We derive a new matrix statistic for the Hausman test for endogeneity in cross-sectional Instrumental Variables estimation, that incorporates heteroskedasticity in a natural way and does not use a generalized inverse. A Monte Carlo study examines the...

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Econometrics - ISSN 2225-1146