Jul 25, 2025 · 2 I'm working with dyadic panel data and estimating a Poisson Pseudo Maximum Likelihood (PPML) gravity model. Two variables I suspect to be endogenous (let's call them …

Jun 13, 2020 · I am estimating a gravity model aiming at evaluating how environmental policies can affect trade patterns. I am using a ppml model using the ppmlhdfe command in Stata. As …

Mar 15, 2016 · We performed calculation of the gravity model in R and Stata software. For calculations we used the standard package glmm in R (with parameter family = quasipoisson), …

The gravity model of International trade is used to estimate the determinants of bilateral trade between countries. In developing the dataset for the gravity model, do i need to manually pair …

What they do in the paper is that they estimate their gravity model, say equation 5.2, using the fixed effects estimator and they estimate the fixed effects directly to use them later in equation …

Apr 5, 2024 · How to specify gravity model of trade with intranational (domestic) trade flows? Ask Question Asked 1 year, 8 months ago Modified 1 year, 8 months ago

Apr 29, 2015 · I just did a regression based on the gravity model where I try to identify the most important factors that determine the trade flows. In total I have 18 variables and 363 …

Analysis of Gravity Model Residuals Ask Question Asked 8 years, 9 months ago Modified 8 years, 9 months ago

Feb 1, 2016 · I am estimating a gravity model of migration on cross-sectional data. The Moran I statistic indicates a positive and significant spatial autocorrelation in the residuals of the non …

Jul 3, 2019 · For darts hitting a dart board, the model is the same. Obviously, gravity would cause a downward bias, but it is either neglected in the model or perhaps is considered to be a …