要素市场 要素需求 要素供给 &财富 收入 vs 财富 收入是流量概念(flow variable) 个人收入=市场收入+转移支付 收入指的是一定时期内(通常为一年)的工资、利润、租金、 财富是存量概念(stock variable) 财富(wealth)人们在某一时点所拥有的资产的货币净值。 洛伦兹曲线与基尼系数 4 100 80 60 40 20 0 20 40 60 80 100 Percent of e The Lorenz Curve Curve of absolute equality Percent of families 5 100 80 60 40 20 0 20 40 60 80 100 Percent of e Actual distribution of . e Curve of absolute inequality Deviation from absolute equality Curve of absolute equality Actual distribution of . e Percent of families 6 100 80 60 40 20 0 20 40 60 80 100 Percent of e Curve of absolute inequality Percent of families A A B A B + Gini coefficient=
: The marginal revenue product (MRP) of output A is the additional revenue produced by an additional unit of input A. MPR=MR*MP 完全竞争市场:MPR=P*MP Wage=marginal product of labor Rent=marginal product of land 10 Least Cost Rules Because of and MRP of factor MP of factor MR = × Price of factor = MRP of factor MP of labor MP of land Price of labor Price of land Marginal revenue 1 = = = … 1 = 1 =
