Questions 6-8

6) Consider the sequential decision game-tree model as presented in lecture: JOE sex SAM coo AN E n s SAM & NO SEX This game is Suggestive of which of the following concepts discussed in class? a) Search and Match b) Double-coincidence of wants c) Multi-coincidence of wants d) The evolution of farming from the use of hoes to ploughs e) Males\" bargaining power in sexual exchanges is rising 7) Consider the Demandeupply model of sexual behavior that was presented in class. Assume that the horizontal axis measures heterosexual sex, the Demand curve rcpresents males, the Supply curve represents females, and the vertical axis measures the price that females can exact from males in exchange for sex. What is the most likely consequence of females having incmased access to contraception, coupled with an increasingly liberal attitude towards sex by males? a) an increase in the price of exchange b) a decrease in the price of exchange c) an increase in the prevalence d) a decrease in the prevalence 8) Consider the case study from class regarding the explosive increase in popularity of oral sex among teens from the mid-1990's to the mid-2900's. The most plausible representation for the behavioral shift in our Demandl' Supply model is a) The demand for traditional intercourse shifted right and the demand of oral sex shifted left b) The demand for traditional intercourse shifted left and the demand for oral sex shifted left c) The supply of traditional intercourse shifted left and the demand for oral sex shifted right d) The supply of traditional intercourse shifted right and the demand for oral sex shifted left