Technical efficiency and U.S. Manufacturing productivity growth
AuthorBernstein, Jeffrey I.
Mamuneas, Theofanis P.
SourceReview of Economics and Statistics
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This paper establishes that new inputs increase technical efficiency levels for U.S. manufacturing. Over the period 1950-1998, intermediate inputs exhibited higher rates of efficiency growth than labor and capital. Efficiency-adjusted productivity growth annually averaged 0.4 percentage points above measured growth. The gap between efficiency-adjusted and measured productivity growth arises from aggregating inputs using observed, and not efficiency-adjusted, cost share weights in the calculation of measured growth. Specifically, the decline in efficiency-adjusted material cost shares, compared to the measured shares, coupled with the comparatively high material input growth rate, was the main source of the productivity gap.