Two travel-industry studies show that deep cuts in travel can harm a company's bottom line. Oxford Economics, in a study released Tuesday, found that each dollar spent on travel by a U.S. company can generate an average profit of $3.80. Meanwhile, a study from IHS Global Insight estimates that U.S. companies could miss out on $193 billion in profit for 2009 because they cut too deeply into business travel. "We understand there's an economic downturn," says Christopher Pike of IHS. "It doesn't mean cutting business travel by 30% when an industry's sales are down by 5%. That's where we're saying you're probably going too far."