Rural areas of sub-Saharan Africa have experienced limited progress towards the sustainable development goal of universal access to clean cooking. Energy-efficient biomass cookstoves (EEBCs) are considered a potential bridge technology, but EEBC models vary widely, and there is a lack of...

The divergence of unemployment rates between the United States and Europe coincided with a substantial acceleration in capital-embodied technical change in the late 1970s. Evidence suggests that European economies have lagged behind the United States in the adoption and usage of new...