Which factor is a cause of diversity in families?

Which of the following statements describes the nature of "stigma" as it relates to welfare? a) society values individual characteristics such as self-reliance and a willingness to work hard, welfare recipients are seen as dependent and lazy. b) social welfare hs been polarized as a "moral category", and its related policy includes treating the poor in a dignified manner, as to highlight the responsible nature of the welfare recipents. c) the norm of reciprocity explains the societal obligation to make some return for the things received, welfare recipents are stigmatized because they are able to be seen as making appropiate contributions for the benefits they incur. d) the capitalistic nature of u. s. society stresses that those who work hard and have the ability will be rewarded with success, welfare recipients are equal to those who do not receive welfare because both groups of people deserve the benefits of success.

What is the rule relating the ratio of marginal utility to prices of two goods at the optimal choice? explain why, if this rule does not hold, the choice cannot be utility-maximizing.

Why are the majority of the world's economies mixed? what may happen to the "pure" types of economies (traditional, socialist/command, market capitalist) when they incorporate elements from other economic models?