Suppose that Giannina Sapienza wants to buy a used car. She knows that one-third of the available used cars are good cars and two thirds are "lemons. She is willing to pay $15,000 for a good car and $5,000 for a lemon. Assume that this buyer cannot distinguish the good cars from the bad cars. Calculate the equilibrium price in this used-car market. Discuss whether the described environment presents adverse selection and or moral hazard problems.