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Question 19 Wheat is the main input in the production of flour. If the price of wheat decreases, then we would expect the Not yet answered a. demand for flour to increase. Marked out of 1.00 O b. supply of flour to increase. Flag question O c demand for flour to decrease. O d. supply of flour to decrease. Question 20 If an allocation of resources is efficient, then Not yet answered a. producer surplus is maximized. Marked out of Qb. all potential gains from trade among buyers are sellers are being realized. Flag question c consumer surplus is maximized. Old. the allocation achieves equality as well. Question 21 Taxes cause deadweight losses because they Not yet answered a. All the other three options are correct. Marked out of 100 b. prevent buyers and sellers from realizing some of the gains from trade. Flag question () c lead to losses in surplus for consumers and for producers that, when taken together, exceed tax revenue collected by the government. O d. distort incentives to both buyers and sellers