Minimax Risk in Estimating Kink Threshold and Testing Continuity

Javier Hidalgo, Heejun Lee, Jungyoon Lee and Myung Hwan Seo

Papers from arXiv.org

Abstract: We derive a risk lower bound in estimating the threshold parameter without knowing whether the threshold regression model is continuous or not. The bound goes to zero as the sample size $ n $ grows only at the cube root rate. Motivated by this finding, we develop a continuity test for the threshold regression model and a bootstrap to compute its \textit{p}-values. The validity of the bootstrap is established, and its finite sample property is explored through Monte Carlo simulations.

Date: 2022-03
New Economics Papers: this item is included in nep-ecm
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