This paper presents an AR(1) model in the spirit of Hausman and Taylor zero differences between actual and in-sample predicted trade flows. Large systematic differences between observed and in-sample predicted trade flows only indicate model misspecification and econometric problems....

This paper illustrates that the generalized propensity score method can easily be applied with multiple continuous endogenous treatment variables. Consistency proofs carry over straightforwardly to this general case, and the approach is shown to work well in finite samples with various...

The paper proposes a refinement of the generalized spatial two-stage and threestage least squares estimators for simultaneous systems of equations with network interdependence, recently introduced in Drukker, Egger and Prucha (2022). Specifically, we propose a refined weighting of the moment...