The gravity equation has been traditionally used to predict trade flows across countries. However, several problems related with its empirical application still remain unsolved. The unobserved heterogeneity, the presence of heteroskedasticity in trade data or the existence of zero flows, which...

This paper estimates the money demand function in Nigeria in the aftermath of the recent global financial crisis and examines whether its underlying properties has changed over the years. Specifically, the existence of a stable long-run demand for money function during the period...

We study semi-parametric estimation and inference in cointegrated panels with endogenous feedback, allowing for general time-series and cross-section dependence and heterogeneity.Central to this literature are the fully-modified OLS of Phillips and Hansen (1990) that use a spectral...