2009/01/12 by Aoyama, Hideaki, Fujiwara, Yoshi, Ikeda, Yuichi +2
#Data Analysis #FOS: Economics and business #FOS: Physical sciences #General Finance (q-fin.GN) #Statistical Finance (q-fin.ST) #Statistics and Probability (physics.data-an)
paper · doi:10.48550/arxiv.0901.1500
Labour productivity distribution (dispersion) is studied both theoretically and empirically. Superstatistics is presented as a natural theoretical framework for productivity. The demand index κ 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 κ 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.