In the first part, do buyers and sellers have to meet any requirements or pay any fees to participate? How does the auction make money? Are small growers as likely to participate as large growers? What about the auction house itself? How does it fit with perfect competition, or could it restrict competition in some way? Could asymmetric information exist with street fruit vendors? For example, could a vendor claim the fruit is organic when it is not and, thus, charge a higher price? How would the buyer know if it is not? Could the quality and variety of fruit vary across vendors