WHEN I WAS a 1952 engineering grad, I was dealing with an Omaha developer. I just had to have a newly restyled 1953 Studebaker car then, and he thought the new model would turn the ailing company around. (He figured, "How much below $7 could the stock drop?") I bought the car and he bought the stock. Over the next few years, I watched his $7,000 investment shrink as he watched me try to get my lemon auto fixed. I had a loser auto, he had a loser stock.