This paper studies a class of models where full identification is not necessarily assumed. We term such models … frequently proceed under conditions that are best described as apparent identification. One objective of the paper is to explore … the properties of conventional statistical procedures in the context of identification failure. Our analysis concentrates …

We consider identification in a class of nonseparable nonparametric simultaneous equations models introduced by Matzkin … "residual index" function. We provide constructive proofs of identification under several sets of conditions, demonstrating some …

This note revisits the identification theorems of B. Brown (1983) and Roehrig (1988). We describe an error in the … proofs of the main identification theorems in these papers, and provide an important counterexample to the theorems on the … identification of the reduced form. Specifically, contrary to the theorems, the reduced form of a nonseparable simultaneous equations …

We consider identification in a class of nonseparable nonparametric simultaneous equations models introduced by Matzkin … "residual index" function. We provide constructive proofs of identification under several sets of conditions, demonstrating …

We consider identification in a class of nonparametric simultaneous equations models introduced by Matzkin (2008 … index" function. We provide constructive proofs of identification under several sets of conditions, demonstrating tradeoffs …

components rely on the same data, which prima facie suggests identification failure. But, as shown here, the discontinuity … identification for the structural coefficients in the usual way, but raising convergence rates for the threshold effect parameters …

sample quantities are not necessarily asymptotically independent under some identification scenarios. Analogous results for …

This paper introduces two new identification- and singularity-robust conditional quasi-likelihood ratio (SR-CQLR) tests … and a new identification- and singularity-robust Anderson and Rubin (1949) (SR-AR) test for linear and nonlinear moment … under strong and semi-strong identification (for all k greater than or equal to p; where k and p are the numbers of moment …

In parametric models a sufficient condition for local identification is that the vector of moment conditions is … the true value that are sufficient for local identification. We apply these results to obtain new, primitive … identification conditions in several important models, including nonseparable quantile instrumental variable (IV) models, single …