"We... never thought of even asking for reimbursement [of expenses involved in creating the options exchange]," says Gorky Eisen of the Board of Trade. "This was part of the concept that was inculcated into all of us: `You owe it to your community.' We had all done very nicely, thank you ... and we felt that we had an obligation to the exchange and this is how you pay your obligations." (Eisen, interviewed by Millo10) Of course, avowals of altruism sometimes mask self-interest, but for a rational egoist to embark on a project like the creation of the International Monetary Market or the Chicago Board Options Exchange, in a context in which all others are rational egoists, is implausible.

Donald MacKenzie, An Engine, Not a Camera, loc. 677