The deployment of a safe and effective vaccine for Covid-19 will be central to lifting containment measures. In a bid to speed up vaccine deployment, governments are entering into ‘Advance Purchase Agreements’ (APAs) with vaccine companies to secure access to vaccine doses. We document and...

Due to increasing population pressure on limited cultivable land in many parts of sub-Saharan Africa (SSA), farm size has been shrinking, fallow periods have been shortened, and soil fertility has been declining. In accordance with the Boserupian evolutionary theory and the Hayami-Ruttan induced...