A well known difficulty in estimating conditional moment restrictions is that the parameters of interest need not be globally identified by the implied unconditional moments. In this paper, we propose an approach to constructing a continuum of unconditional moments that can ensure parameter identifiability. These unconditional moments depend on the “instruments” generated from a “generically co...

JEL: F15, F23, F12

The paper considers estimation and inference of time series GMM models where a subset of parameters are time varying. The magnitude of the time variation in the unstable parameters is such that efficient tests detect the instability with (possibly high) probability smaller than one, even in the limit. We show that for many forms of parameter instability and for a large class of GMM models, stan...

This paper essentially extends the generalized spectral estimation of Berkowitz (2001) to provide a consistent generalized spectral estimator (GSE), considering all the information available, possibly with in…nite dimensions, based upon Escanciano (2006). Our estimator can entertain the strengths of the Berkowitz-GSE over the standard GMM. In contrast, more importantly, the newly proposed estim...

We propose a spatial quantile autoregression (SQAR) model, which allows cross-sectional dependence among the responses, unknown heteroscedasticity in the disturbances, and heterogeneous impacts of covariates on different points (quantiles) of a response distribution. The instrumental variable quantile regression (IVQR) method of Chernozhukov and Hansen (2006) is generalized to allow the data to...

This paper considers the phenomenon of third party antidumping; that is, the ability of a firm to bring an AD case in a foreign country against third party dumpers. Recent experience in New Zealand is discussed and suggestions are offered as to why a country might wish to permit foreigners to demand that other foreigners increase prices in that country. D 2005 Elsevier B.V. All rights reserved....

In this paper, we offer a general analytical framework illustrating the complex two-way interactions between trade and transnational terrorism. We then survey the recent economic literature in light of this framework by pointing to the importance in empirical studies a) to control appropriately for theses interactions, b) to distinguish between "source" countries and "target" countries of terro...

This paper considers a new-product firm’s choice between exporting and foreign direct investment (FDI) to access foreign markets. We find that, when quality is unknown to buyers, the firm may choose FDI over exporting to signal quality, even though FDI is a costlier mode of access than exporting. We then use the model to study the effect of local labor requirement policy imposed by the host cou...

This paper compares the performance of three recently proposed estimators for dynamic panel data models (LSDV bias-corrected, MLE and MDE) along with GMM. Using Monte-Carlo, we find that MLE and biascorrected estimators have the smallest bias and are good alternatives for the GMM. System-GMM outperforms the rest in ‘difficult’ designs. Unfortunately, bias-corrected estimator is not reliable in ...