Harvard thrilled middle-class parents last week by capping its tuition for families with incomes of up to $180,000 at 10 percent of their earnings. The move sparked hopes of a donation race that could ease the soaring costs of college. Earlier this month, Duke joined a group of schools including Harvard, Princeton, and Stanford that promise free rides to low-income students. But many point out that these gestures will affect only a few hundred lucky students. The outlays are so comparatively small that they are unlikely to divert pressure for reforms in the ways colleges spend their money—especially the estimated $380 billion of endowment funds stored in tax-free accounts. "It"s an important gesture," College Parents of America President James Boyle says of Harvard But colleges should do more now with the money they"ve socked away for a rainy day, he says The numbers are smaller, but the story is similar at other colleges. The average endowment has been reaping 10 percent a year on investments since 2004. But colleges spent an average of just 4.6 percent of their endowments last year while raising tuition faster than the rate of inflation. That troubles folks like Sen. Chuck Grassley, who"s pushing Congress to require wealthy colleges to spend at least 5 percent of their endowments every year. "Tax-exempt organizations are supposed to provide public benefit in exchange for their special status," he said. "Helping the next generation afford college is a public benefit. " Many college officials, of course, are battling such rule changes. While Harvard, Yale, and Princeton all have more than $1 million worth of endowment per student, half of all colleges have no more than $2,000 per student saved up. Even high-earning schools say they already are spending as much as they should. Chris Bittman, chief investment officer of the University of Colorado Foundation, racked up almost 23 percent in returns last fiscal year, bringing the school"s endowment to nearly $800 million. He supports the school"s policy of spending 4.5 percent. Recent big profits can"t last forever, he says. Instead, endowments should plan on earning the long-term average of 10 percent. Still, pressure appears to be forcing some changes. In June, Stanford announced it would increase its endowment spending to 5.5 percent, or $160 million a year. If every school followed suit, that would free up about $4 billion a year (or $200 per student) to increase aid or keep tuition prices down. Or as Richard Vedder, an Ohio University economist, says, "a small step for mankind."

单选题 According to the first two paragraphs, the "free rides" to famous schools will probably

单选题 Sen. Chuck Grassley suggests that the schools should

单选题 According to Paragraph 4, Chris Bittman believes that

单选题 The phrase "a small step for mankind" (Last line, Paragraph 5) shows that the increased endowment spending will

单选题 What can we infer from the text?