The answer is that you need to add "liquidity preference", the supply and demand for money.
答案就是，你要把“流动性偏好”，也就是对现金的需求和供给加入考虑。
The research of the house demand preference for the Mianyang city residents show that there are two types demand of usage and investment when they purchase house on the basis of survey.
在调查基础上对绵阳城市居民住房需求偏好的研究表明，绵阳城市居民的住房购买需求中包含使用性需求和投资性需求两个方面。
Studying customer choice may facilitate accurate preference information exploration hence a better product line decision and then an expected effect on the market demand flow.
因此，研究 顾客选择有利于企业充分准确地掌握 顾客的偏好信息，从而 根据这些信息进行企业的产品线优化决策，以引导市场 需求流向本企业。
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