World trade is increasingly ruled by preferential trade agreements (PTAs), but their precise nature remains relatively opaque. This paper assesses a central dimension of these agreements, the significance of tariff preferences, using a new data set on preferential and non-preferential or Most...

This paper exploits information from two different datasets to provide a novel and multi-dimensional picture of the engagement of all sub-Saharan African countries in global value chains (GVCs). It documents in detail the nature of the underlying data and the way it is used to construct several...