Albert has won two tickets in a raffle to see the latest movie at the cinema. The market price of a ticket is $20. Albert has no friends or family living near by, so he would only be using one ticket. He mentions this to an acquaintance at work, Rashid. Rashid thinks to himself that he would like to see the movie. He starts haggling with Albert over the purchase of the remaining ticket.

Assuming that both Albert and Rashid are rational, self-interested people, what price will they eventually agree on? Explain your answer.