Troubles in the subprime mortgage industry seem to be spreading. The stock market is in turmoil. Alan Greenspan and other economists say the economy is being hurt. Consumer groups predict that up to two million Americans will lose their homes. Should the government do something? A growing list of people say it should, from Democratic senators Christopher Dodd and Hillary Clinton to a string of advocates for the poor. Perhaps the money-losing lenders should be bailed out. Or maybe there should be help for hedge funds and other investors who have loaded up on securities backed by subprime loans. And there could be help for homeowners who can’t handle their soaring monthly payments. Not so fast, say Wharton faculty who have studied the mortgage market and past government bailouts. “I think that for the moment, they should probably leave it alone,” says Joseph Gyourko , professor of real estate and finance at Wharton, warning that bailouts can make people more reckless in the future.…