2008/05/19 by Hideaki Aoyama, Hiroshi Yoshikawa, Aoyama, Hideaki +5
Decision Sciences · Economics, Econometrics and Finance · #Complex Systems and Time Series Analysis #Data Analysis #FOS: Economics and business #FOS: Physical sciences #Firm Innovation and Growth #General Finance (q-fin.GN) #Innovation Diffusion and Forecasting #Physics and Society (physics.soc-ph) #Statistical Finance (q-fin.ST) #Statistical Mechanics (cond-mat.stat-mech) #Statistics and Probability (physics.data-an)
paper · pdf · doi:10.48550/arxiv.0805.2792
openalex publication_date 2008/05/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study productivity dispersions across workers, firms and industrial sectors. Empirical study of the Japanese data shows that they all obey the Pareto law, and also that the Pareto index decreases with the level of aggregation. In order to explain these two stylized facts, we propose a theoretical framework built upon the basic principle of statistical physics. In this framework, we employ the concept of superstatistics which accommodates fluctuations of aggregate demand.