At certain times in the menstrual cycle, women demonstrate a preference for a mate that has the greatest degree of facial symmetry, facial masculinity, and a muscular physique. These demonstrate a male's degree of .

Montesquieu suggested dividing government into

Rational ignorance suggests that a. voters are ignorant on issues that are not of special interest to them b. voters do not pursue information about issues before voting c. low voter turnout is due to a lack of understanding of the platforms of each political party d. voters are uninterested in the electoral process

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.