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Panel threshold regressions with latent group structures

Miao Ke (), Liangjun Su and Wendun Wang ()
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Miao Ke: School of Economics, Singapore Management University
Wendun Wang: Econometric Institute, Erasmus University Rotterdam and Tinbergen Institute

No 13-2019, Economics and Statistics Working Papers from Singapore Management University, School of Economics

Abstract: In this paper, we consider the least squares estimation of a panel structure threshold re-gression (PSTR) model where both the slope coefficients and threshold parameters may exhibit latent group structures. We study the asymptotic properties of the estimators of the latent group structure and the slope and threshold coefficients. We show that we can estimate the latent group structure correctly with probability approaching 1 and the estimators of the slope and threshold coefficients are asymptotically equivalent to the infeasible estimators that are obtained as if the true group structures were known. We study likelihood-ratio-based inferences on the group-specific threshold parameters under the shrinking-threshold-effect framework. We also propose two specification tests: one tests whether the threshold parameters are homogenous across groups, and the other tests whether the threshold effects are present. When the number of latent groups is unknown, we propose a BIC-type information criterion to determine the number of groups in the data. Simulations demonstrate that our estimators and tests perform reasonably well in finite samples. We apply our model to revisit the relationship between capital market imperfection and the investment behavior of firms and to examine the impact of bank deregulation on income inequality. We document a large degree of heterogeneous effects in both applications that cannot be captured by conventional panel threshold regressions.

Keywords: Classification; Dynamic panel; Latent group structures; Panel structure model; Panel threshold regression. (search for similar items in EconPapers)
JEL-codes: C23 C24 C33 (search for similar items in EconPapers)
Pages: 76 pages
Date: 2019-07-11
New Economics Papers: this item is included in nep-ecm, nep-ore and nep-sea
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