[预告]12.04系统科学学院讲座：Economic inequality from statistical physics point of view

　 　题目： Economic inequality from statistical physics point of view

　　时间： 2015年12月4日 15:30-17:10

　　地点： 北京师范大学 英东楼A区217会议室

　　主讲人： Prof. Victor Yakovenko

　　主持人： 狄増如 教授

　　主讲人简介： Victor Yakovenko，Department of Physics, University of Maryland, College Park, USA

　　内容简介：

　　Similarly to the probability distribution of energy in physics, the probability distribution of money among the agents in a closed economic system is also expected to follow the exponential Boltzmann-Gibbs law, as a consequence of entropy maximization.  Analysis of empirical data shows that income distributions in the USA, European Union, and other countries exhibit a well-defined two-class structure.  The majority of the population (about 97%) belongs to the lower class characterized by the exponential ("thermal") distribution.  The upper class (about 3% of the population) is characterized by the Pareto power-law ("superthermal") distribution, and its share of the total income expands and contracts dramatically during booms and busts in financial markets.  Globally, data analysis of energy consumption per capita around the world shows decreasing inequality in the last 30 years and convergence toward the exponential probability distribution, in agreement with the maximal entropy principle. Similar results are found for the global probability distribution of CO2 emissions per capita.  All papers are available at http://physics.umd.edu/~yakovenk/econophysics/ .  For recent coverage in Science magazine, see http://www.sciencemag.org/content/344/6186/828