Learning or experience curves are widely used to estimate cost functions in manufacturing modeling. They have recently … shows that there is a fundamental statistical identification problem in trying to separate learning from exogenous … technological change and that the estimated learning coefficient will generally be biased upwards. Second, we present two empirical …

We demonstrate that heat inhibits learning and that school air-conditioning may mitigate this effect. Student fixed … learning time. New nationwide, school-level measures of air-conditioning penetration suggest patterns consistent with such … infrastructure largely offsetting heat's effects. Without air-conditioning, a 1°F hotter school year reduces that year's learning by …

learning. We compute system-wide measures using administrative data from the country of Colombia that link social security … and learning productivities are far from perfectly correlated, with private institutions receiving relatively higher … rankings under earning measures than under learning measures; 2) earning measures are significantly more correlated with …

and suggest a potentially important role of variation in rates of learning disability in explaining cross-country growth …

sources of heterogeneity (both of which can clearly account for the variation in wages and wage growth rates): learning …