Productivity, Efficiency, Scale Economies and Technical Change: A New Decomposition Analysis

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This paper aims to examine the productivity change of the Japanese economy using the data pertaining to the 47 prefectures during the period 1981-2000. The decomposition analysis of the Hicks-Moorsteen-Bjurek productivity index is conducted to explore the sources of the productivity change. In summary, technical change and efficiency change are two of the most important components driving procyclical productivity. We find that their relative importance varies over periods. Supply shocks captured by technical change component caused upturns in productivity in the mid and late 80s and in 1999 and 2000. Supply shocks also caused downturns in the early and mid 90s. On the other hand, demand shocks captured by the efficiency change component drove upturns of productivity in 1984, 1990, and 1996 when supply shocks were not detected.

Published: Nemoto, Jiro and Mika Goto. "Productivity, Efficiency, Scale Economies And Technical Change: A New Decomposition Analysis Of TFP Applied To The Japanese Prefectures," Journal of the Japanese and International Economies, 2005, v19(4,Dec), 617-634.

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