At the Harvard campus restaurants, however, the students seemed to have more on their minds than the price hikes.

"I didn't notice," said Trent Taylor, a third-year law student, who was drinking a bottle of Diet Coke in the Green-house. "But $1.50 is pretty expensive. I know you can get a liter of this Coke for the same price."

"Really?" asked Amahl A. Bishara '98, choosing her dinner at Loker. "It definitely makes me want to buy something else. Maybe I'll get a baguette."

She ultimately opted for the small sushi box, priced at $4.45.

Other students simply chose not to buy bottled soda or sushi.

"It's either unfair or inefficient," said Ted Miguel, a graduate student in economics, studying in the Greenhouse. "I don't know which."

"It's bad," agreed Miguel's study partner, Justin Wolfers. "A Coke is like 65 cents elsewhere."

Both students said they had never bought bottled soda or sushi at campus restaurants.

According to Davidson, bottled soda and sushi were not sizable sources of profit for the campus restaurants.

"We only started selling the bottle soda and the sushi from about last spring," Davidson said. "Sushi bars are opening up, so we thought it might be trendy for us to offer sushi, too. It's mostly for the variety. As for the bottled soda, that's mostly a convenience item."

Davidson admitted that the bottled soda was not showing great profit.

"We serve approximately 3,500 customers a day at the Greenhouse," he said.

"So an average of 40 boxes of sushi and 240 bottles of soda sold daily isn't very much in the larger picture."

At the same time, Davidson said he was happy with the amount of soda and sushi sold.

"I'm pretty satisfied," he said. "And there have been no changes in the amount sold since the price hikes."