Gossen's "first law of demand" and its implications.

戈森的“需求第一定律”及其影响。

Consumption credit service, as a commodity, has its own law of demand.

消费信贷服务作为一种商品，有着它的需求规律。

In the long run, commodity prices are governed but by one law, the economic law of demand and supply.

从长远来看，决定商品价格的只有一条法则，供与求的经济法则。

The law of demand states that when the price of a commodity increases, the quantity demanded decreases.

供求的规律指出当商品价格提高，需求量就会减少。

The law of demand asserts that price and quantity demanded are negatively related (other things being equal).

需求定律是指商品价格及其需求量有相反的关系。