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Innovation, Reallocation and Growth

William Kerr (), Ufuk Akcigit (), Nicholas Bloom () and Daron Acemoglu

No 188, 2015 Meeting Papers from Society for Economic Dynamics

Abstract: We build a model of firm-level innovation, productivity growth and reallocation featuring endogenous entry and exit. A key feature is the selection between high- and low-type firms, which differ in terms of their innovative capacity. We estimate the parameters of the model using detailed US Census micro data on firm-level output, R&D and patenting. The model provides a good fit to the dynamics of firm entry and exit, output and R&D, and its implied elasticities are in the ballpark of a range of micro estimates. We find industrial policy subsidizing either the R&D or the continued operation of incumbents reduces growth and welfare. For example, a subsidy to incumbent R&D equivalent to 5% of GDP reduces welfare by about 1.5% because it deters entry of new high-type firms. On the contrary, substantial improvements (of the order of 5% improvement in welfare) are possible if the continued operation of incumbents is taxed while at the same time R&D by incumbents and new entrants is subsidized. This is because of a strong selection effect: R&D resources (skilled labor) are inefficiently used by low-type incumbent firms. Subsidies to incumbents encourage the survival and expansion of these firms at the expense of potential high-type entrants. We show that optimal policy encourages the exit of low-type firms and supports R&D by high-type incumbents and entry.

New Economics Papers: this item is included in nep-com, nep-cse, nep-dge, nep-ent, nep-gro, nep-ino, nep-sbm and nep-tid
Date: 2015
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https://economicdynamics.org/meetpapers/2015/paper_188.pdf (application/pdf)

Related works:
Working Paper: Innovation, Reallocation, and Growth (2017) Downloads
Working Paper: Innovation, reallocation and growth (2013) Downloads
Working Paper: INNOVATION, REALLOCATION AND GROWTH (2013) Downloads
Working Paper: Innovation, Reallocation and Growth (2013) Downloads
Working Paper: Innovation, reallocation and growth (2013) Downloads
Working Paper: Innovation, Reallocation and Growth (2013) Downloads
Working Paper: Innovation, Reallocation and Growth (2013) Downloads
Working Paper: Innovation, Reallocation and Growth (2012) Downloads
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