Suppose there is asymmetric information in the market for used cars. Sellers know the quality of the car they are selling, but buyers do not.
Buyers know that there is a 30% chance of getting a "lemon", a low quality used car. A high quality used car is worth $30,000, and a low quality used car is worth $15,000. Based on the probability, the most that a buyer would be willing to pay for a used car is $_______ (round response to the nearest whole dollar)