- Industry: Education
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A measure of the average prices of a group of goods relative to a base year. A typical price index for a vector of quantities ''q'' and prices ''p<sup>b</sup>'', ''p<sup>g</sup>'' in the base and given years respectively would be ''I'' = 100''p<sup>g</sup>q'' / ''p<sup>b</sup>q''.
Industry:Economy
一条直线表示变量的组合，通常两个货物，成本一些给定的价格相同。价格直线的斜率的措施相对价格，并因此可以由改变边坡，或旋转，价格行表示价格的变化。陡峭的线意味着更高的相对价格的水平轴上测量的良好。
Industry:Economy
