Ikeda, Yuichi Fujiwara, Yoshi Aoyama, Hideaki Iyetomi, Hiroshi Souma, Wataru
Year of Publication:
Economics Discussion Papers / Institut für Weltwirtschaft 2008-42
Labour productivity distribution (dispersion) is studied both theoretically and empirically. Superstatistics is presented as a natural theoretical framework for productivity. The demand index ê 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 ê 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.
Labour productivity superstatistics Pareto's law Business Cycle demand index