(FORTUNE Magazine) – It's not your ordinary job for an MBA student at Wharton. Danielle Downing, 26, is doing her bit for capitalism by helping launch the year-old Moscow Commodities Exchange. Downing, a New Yorker who speaks four languages besides Russian, is the chief consultant to the exchange, which resembles a garage sale more than a sophisticated bourse. Refrigerators, German beer, videocassettes, cigarettes, and other rare consumer goods make up much of the nearly 15 million rubles -- about $9.3 million -- of transactions per session. More than 300 brokeri have sprung up around the exchange. Says Downing: ''They're just like brokers back home -- aggressive young men who want to make a deal. They'd be really fun to party with, if there were any pubs to go to.''