We set up an endogenous growth model in which the efficiency of both capital and fossil energy can be improved, whereas the efficiency of one alternative energy source is limited. With capital and energy as complements, there exist two steady states: one stagnant where energy is fully derived...

Burkina Faso has experienced quite significant aggregate growth over the past two decades, but that growth has not been transformed into poverty reduction. The key obstacles preventing large-scale escape from poverty are very high population growth combined with the absence of major...