The paper proposes a technique to jointly tests for groupings of unknown size in the cross sectional dimension of a panel and estimates the parameters of each group, and applies it to identifying convergence clubs in income per-capita. The approach uses the predictive density of the data,...

Movement toward the objective of undistorted world agricultural markets has been set back by the lapse since 2008 of the WTO Doha Round negotiations. In the absence of a new agreement, constraints on distortionary agricultural domestic support remain lax. One might have expected policies of...