Using data relating to ‘number one’ hits on the Billboard Hot 100 chart, we find clear evidence of increasing returns to information in the U.S. market for popular music. This evidence supports related findings for the motion picture industry in various countries, and for Broadway productions.

In this study, the authors examine exhaustive business data on Japanese firms, which cover nearly all companies in the mid- and large-scale ranges in terms of firm size, to reach several key findings on profits/sales distribution and business growth trends. Here, profits denote net profits....

We examine the concept of relaxation in the wealth exchange models that are recently proposed in econophysics to interpret wealth distributions. To quantify and characterize the process of relaxation, we define an appropriate quantity and evaluate that numerically for the systems of many agents....