而如果行业的要素供给曲线是正斜率的话，所有厂商就不可能在价格不变的情况下同时得到更多的生产要素。
But if factor supply curves to the industry slope positively, all firms together cannot get an increased quantity of factors of production at an unchanged price.
这就是罗勃津斯基原理：在两种商品的世界中，如果价格固定不变，一种生产要素的增长实际上会减少一种商品的产量。
This is the Rybczynski theorem: in a two-good world, the growth of one factor of production actually cuts the output of one good if prices are constant.
假定相对价格和土地与劳动供给不变，如何决定不同要素投入到不同的商品生产。
Given the relative price of cloth and the supplies of land and labor, it is possible to determine how much of each resource the economy devotes to the production of each good.
应用推荐