Bénabou [(2002) Econometrica 70, 481–517.] demonstrated how progressive redistribution mitigates unequal opportunity for education to promote growth. We ask how effective that policy is when it affects the average quality of education. So, we add a learning externality in his model of human...

The traditional emphasis on breaking down output growth according to growth in inputs and growth in TFP is misplaced. More appropriately, we should break it down according to changes in "efficiency" and "technology". These two are equilibrium concepts, rather than purely technical properties of...