Economy – Quantitative Finance – General Finance
Scientific paper
2009-01-12
Economy
Quantitative Finance
General Finance
15 pages, including 9 figures
Scientific paper
Labour productivity distribution (dispersion) is studied both theoretically and empirically. Superstatistics is presented as a natural theoretical framework for productivity. The demand index $\kappa$ is proposed within this framework as a new business index. Japanese productivity data covering small-to-medium to large firms from 1996 to 2006 is analyzed and the power-law for both firms and workers is established. The demand index $\kappa$ is evaluated in the manufacturing sector. A new discovery is reported for the nonmanufacturing (service) sector, which calls for expansion of the superstatistics framework to negative temperature range.
Aoyama Hideaki
Fujiwara Yoshi
Ikeda Yuichi
Iyetomi Hiroshi
Souma Wataru
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