Showing 1 - 10 of 524
This paper proposes new estimation techniques for gravity models with zero trade values and heteroscedasticity. We propose various Heckman estimators with different distributions of the residuals, nonlinear forms of both selection and measure equations, and various process of the variance. We...
Persistent link: https://www.econbiz.de/10012889139
The centrality in a network is a popular metric for agents' network positions and is often used in regression models to model the network effect on an outcome variable of interest. In empirical studies, researchers often adopt a two-stage procedure to first estimate the centrality and then infer...
Persistent link: https://www.econbiz.de/10013313216
Persistent link: https://www.econbiz.de/10012426562
For the estimation of structural gravity models using PPML with countrypair, exportertime and importer-time effects it proves useful to exploit the equilibrium restrictions imposed by the system of multilateral resistances. This yields an iterative projection based PPML estimator that is...
Persistent link: https://www.econbiz.de/10011875702
Starting with Tinbergen (1962), quantifying the effects of regional trade agreements (RTAs) on international trade flows has always been among the most popular topics in the trade literature. Also not surprisingly, to estimate the effects of RTAs, most researchers and policy analysts have relied...
Persistent link: https://www.econbiz.de/10013540804
Bilateral trade flows traditionally have been analysed by means of the spatial interaction gravity model. Still, (auto)correlation of trade flows has only recently received attention in the literature. This paper takes up this thread of emerging literature, and shows that spatial filtering (SF)...
Persistent link: https://www.econbiz.de/10012986014
The gravity model has become an efficient tool in the analysis of international economic relations due to its theoretical derivation and ability to explain these relationships. The contending issue now is the appropriate specification and estimation techniques. This paper presents a review of...
Persistent link: https://www.econbiz.de/10013051886
When analyzing panel data using regression models, it is often reasonable to allow for time-varying covariate effects. We propose a novel approach to modelling timevarying coefficients in panel data regressions, which is based on penalized regression techniques. To illustrate the usefulness of...
Persistent link: https://www.econbiz.de/10009722024
This article questions the slope homogeneity in a gravity equation and proposes a partially heterogeneous framework for its estimation using panel data. We suggest to employ K-mean clustering to group countries according to the gravity equation variables. Further, the gravity model is estimated...
Persistent link: https://www.econbiz.de/10010461219
This paper compares various estimation methods often used in the estimation of gravity models of international trade. The authors first discuss different structural and consistent estimation techniques, their underlying assumptions and their impact on estimated coefficients. They then estimate...
Persistent link: https://www.econbiz.de/10011502657