The consumer chooses consumption of the two goods so that the marginalrate of substitution equals the relative price.
消费者选择两种商品的消费以便边际替代率等于相对价格。
2
The technological progress is embodied in changes in allocating of factors, while new production function by factors and change in marginalrate of substitution are basically characteristic of it.
The marginalrate of substitution of goods and the existence theorem of the optimal solution is to introduce some of the previous extension of the theory.