Two issues related to mapping a multi-sector model into a reduced-form value-added modelare often neglected: the composition of intermediate goods, and the distinction between valueadded productivity and gross output productivity. We demonstrate their quantitativesignificance for the case of the well known model of Greenwood, Hercowitz and Krusell(1997), who find that about 60% of economic growth can be attributed to investment-specifictechnical change (ISTC). When we recalibrate their model to allow for even a smallequipment share of intermediates, we find that ISTC accounts for almost the entirety of postwarUS growth.
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Paper provided by Centre for Economic Performance, LSE in its series CEP Discussion Papers with number
dp0869.
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