link long-run changes of the demographic dividend to changes in the level of world trade for the 21st century. All the …-Saharan Africa will experience a substantial increase in their share of world trade throughout the remainder of this century, while …

World trade evolves at two margins. Where a bilateral trading relationship already exists it may increase through time … have not traded with each other in the past (extensive margin). We provide an empirical dissection of post-World-War- II … growth in manufacturing world trade along these two margins. We propose a "cornersolutions- version"of the gravity model to …