1. Suppose there are nine sellers and nine buyers, each willing to buy or sell one unit of a good, with values {$10,$9,$8,$7,$6,$5,$4,$3,$2}. Assuming no transactions costs and a competitive market, what is the equilibrium price in this market? 2. If the government imposes a price floor at $9 (i. e., price must be $9 or higher) in the above market, how many goods will be traded?
a. Five
b. Four
c. Three
d. Two

3. Suppose there is a single market maker in this market. What is the optimal bid