New insights - from new data - on the relationship between population growth, factor accumulation, and productivity … density affect productivity. Despite these differing theoretical predictions, the empirical literature has focused mainly on … decomposed the effect of population through factor accumulation and the effect through productivity.Pritchett uses newly created …

condition holds, non-zero rates of growth of labor productivity will not destroy debt neutrality …

productivity? To address this question we propose that societies are subject to a “physiological check”: if human body size rises …