In microeconomic theory a preference map or indifference map is the collection of indifference curves possessed by an individual. Similar in nature to a topographical map, the contour lines of such a map demonstrating progressively more desirable options as they move upward or to the right. Because of the nature of indifference curves they cannot intersect and are effectively infinite in number, their sum defining all possible combinations of values.

        An individual will choose to consume goods at the point where their budget constraint is tangent  to an indifference curve their preference map. Because of the nature of the preference map, there is only on possible curve and one possible consumption point on any given combination of preference map and budget constraint. It is by accumulating these consumption points that a demand curve  can be generated.

     这是一个解释，其实翻译成汉语就是无差异曲线族，学过微观的话很好明白吧？呵呵。相切为均衡，就是你后面问的

ling0617  金钱 +10  魅力 +3  奖励热心帮助~~ 2009-5-28 17:28:33

原来就是指“无差异曲线”啊，咋一看，我还真懵了，没见过“同好曲线图”的说法。

谢谢2楼！