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α: calibrated so average coauthorship-adjusted count equals average raw count
We measure the impact of a drastic new technology for producing steel--the minimill--on industry-wide productivity in the US steel industry, using unique plant-level data between 1963 and 2002. The sharp increase in the industry's productivity is linked to this new technology through two distinct mechanisms: (i) the mere displacement of the older technology (vertically integrated producers) was responsible for a third of the increase in the industry's productivity, and (ii) increased competition, due the minimill expansion, drove a productivity resurgence at the surviving vertical integrated producers and, consequently, the productivity of the industry as a whole. (JEL D24, L13, L23, L61, M11, O31, O33)