什么是供给与需求模型?_BEC初级作文

什么是供给与需求模型?

Application in Modern Economics

（供给需求模型）在现代经济学中的应用

To think of it in modern application, take the example of a new DVD being released for $15.

要想看它的现代版实例，我们来看一种定价为15美元的DVD。

Because market analysis has shown that current consumers will not spend over that price for a movie, the company only releases 100 copies because the opportunity cost of production for suppliers is too high for the demand.

由于市场分析显示目前的消费者不会付出比这更高的价格来看一部电影，所以公司决定把这个DVD发行100份；因为，对于当前的需求量来说，供应方制造更多DVD的机会成本太高了。

However, if the demand rises, the price will also increase resulting in a higher quantity supply.

不过，当需求升高时，DVD的价格也会上升，然后就会导致供给量也上升。

Conversely, if 100 copies are released and the demand is only 50 DVDs, the price will fall to attempt to sell the remaining 50 copies that the market no longer demands.

相反，如果DVD发行了100份，而需求只有50份，价格就会下降以求售出那剩下的50份市场并不需要的DVD。

The concepts inherent in the supply and demand model further provide a backbone for modern economics discussions, especially as it applies to capitalist societies.