Network Structure of Japanese Business Firm

Note: Tea Time, 4:30 PM
Speaker: Misako Takayasu, Tokyo Institute of Technology , Hideki Takayasu, Sony Computer Science Laboratories

When: August 26, 2009 (Wed), 04:30PM to 05:30PM (add to my calendar)
Location: SCI 2nd fl. lounge

This event is part of the Women in Physics Events.

We analyze network structure of about 1 million Japanese business firms based on a huge data including information about business connections. Clear power law distributions are confirmed for link numbers and Page ranks, and less clear power law laws hold for hub and authority. We observe correlations among network characteristics and economics quantities such as sales, incomes and growth rates. Summarizing all empirical facts we discuss about how to construct numerical models.