Every item in the just a dollar store is priced $ 1.00 $1.00. when jack opens the store, there is $ 200.00 $200.00 in the cash register. when he counts the money in the cash register at the end of the day, the total is $ 963.00 $963.00. if the sales tax rate is 9 % 9%, how many items were sold that day?

Many potential buyers value high-quality used cars at the full-information market price of € p1 and lemons at € p2. a limited number of potential sellers value high-quality cars at € v1 ≤ p1 and lemons at € v2 ≤ p2. everyone is risk neutral. the share of lemons among all the used cars that might be potentially sold is € θ . suppose that the buyers incur a transaction cost of $200 to purchase a car. this transaction cost is the value of their time to find a car. what is the equilibrium? is it possible that no cars are sold