Shifting recruiting efforts to the spring gives companies greater flexibility by allowing them to make hiring decisions later in the year.

Murray said changes in recruiting schedules did not necessarily mean an economic slowdown is around the corner.

"It's too soon to tell what's going to happen. We don't have the numbers and these things change from day-to-day," she said.

Some economists, however, have said key economic indicators point toward the possibility of a recession within the next several years. As a result, they say, undergraduates should expect fewer job opportunities.

"There are not as many offers in the technology sector and it's my guess that people are going to be fighting for more conventional jobs on Wall Street," said Shewin Rosen, University of Chicago distinguished service professor of economics and social sciences.

"The tide has definitely turned. From what I've seen, it seems there are fewer offers out there," Rosen said. "There's been a boom for as long as we've ever had one, and it's come to an end."

Professor of Economics N. Gregory Mankiw also said there are signs that the economy is slowing.