Evidence that Capital Formation is Overestimated in Low- and Middle-income Countries in ICP 2011

Using the International Comparison Program (ICP) 2011’s cross-country data on input prices and project cost shares, I show that the ICP 2011 construction prices are substantially underestimated in the 143 low- and middle-income countries where these prices were estimated from input prices. As a consequence, the ICP 2011’s estimate of PPP-adjusted construction is overestimated on average by about 100% and gross fixed capital formation is overestimated by 25–30% in these countries. These nonrandom data errors are of sufficient magnitude to cause serious estimation bias in cross-country growth analyses. © 2015 Informa UK Limited, trading as Taylor & Francis Group.

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