Mismeasuring long-run growth: the bias from splicing national accounts—the case of Spain

Leandro Prados de la Escosura ()

Cliometrica, Journal of Historical Economics and Econometric History, 2016, vol. 10, issue 3, 251-275

Abstract: Comparisons of economic performance over space and time largely depend on how statistical evidence from national accounts and historical estimates are spliced. To allow for changes in relative prices, GDP benchmark years in national accounts are periodically replaced with new and more recent ones. Thus, a homogeneous long-run GDP series requires linking different temporal segments of national accounts. The choice of the splicing procedure may result in substantial differences in GDP levels and growth, particularly as an economy undergoes deep structural transformation. An inadequate splicing may seriously bias the measurement of GDP levels and growth rates. Alternative splicing solutions are discussed in this paper for the particular case of Spain, a fast-growing country in the second half of the twentieth century. It is concluded that the usual linking procedure, retropolation, is seriously flawed as it tends to bias GDP levels upwards and, consequently, to underestimate growth rates, especially for developing countries experiencing structural change. An alternative interpolation procedure is proposed.

Keywords: Growth measurement; Splicing GDP; Historical national accounts; Spain (search for similar items in EconPapers)
JEL-codes: C82 E01 N13 O47 (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (14)

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