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TIGHTENING BOUNDS IN TRIANGULAR SYSTEMS

Desire Kedagni and Ismael Mourifié ()

Working Papers from University of Toronto, Department of Economics

Abstract: This note discusses partial identi cation in a nonparametric triangular system with discrete endogenous regressors and nonseparable errors. Recently, [Jun, Pinkse and Xu (2011, JPX). Tighter Bounds in Triangular Systems. Journal of Econometrics 161(2), 122-128] provides bounds on the structural function evaluated at particular values using exclusion, exogeneity and rank conditions. We propose a simple idea that often allows to improve the JPX bounds without invoking a new set of assumptions. Moreover, we show how our idea can be used to tighten existing bounds on the structural function in more general triangular systems.

Keywords: Nonparametric triangular systems; Partial identification; Instrumental variables; Rank con- ditions. (search for similar items in EconPapers)
JEL-codes: C14 C30 C31 (search for similar items in EconPapers)
Pages: Unknown pages
Date: 2014-07-07
New Economics Papers: this item is included in nep-ecm
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