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α: calibrated so average coauthorship-adjusted count equals average raw count
“Structural transformation and the rise of information technology” by Gallipoli and Makridis provides compelling evidence on the effects of increasingly productive IT-intensive occupations on within-sector productivity growth. I discuss their results and link them to patterns of aggregate productivity growth. While there are limits to aggregate conclusions from within-sector patterns, their findings provide rich empirical restrictions on equilibrium models of structural transformation.