Quantity Measurement and Balanced Growth in Multi-Sector Growth Models
Georg Duernecker (),
Berthold Herrendorf () and
No 12300, CEPR Discussion Papers from C.E.P.R. Discussion Papers
Multi-sector models typically rely on a numeraire to aggregate quantities whereas NIPA uses the chain index. For three popular versions of the multi-sector growth model, we provide analytical expressions for the growth of aggregate quantities under both measurement methods and establish that the compound differences are sizeable over long horizons. We show that using the chain index captures more accurately the aggregate effects of secular changes in relative prices. For example, in a standard model of structural transformation, measuring GDP growth with the chain index captures that Baumol's disease reduces welfare growth, which using a numeraire misses.
Keywords: Balanced Growth; Baumol Disease; Chain Indexes; Structural Change (search for similar items in EconPapers)
JEL-codes: O41 O47 O51 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-gro
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