From the Cato Institute:
There is plenty of disagreement on whether a big-government stimulus project is the best way to bring the United States out of recession. The Cato Institute purchased a full-page ad in major newspapers across the country listing the names of several hundred economists who object to massive deficit spending as an economic stimulus. Cato scholars and ad signatories have made their case on television since the spending program was proposed.
See Cato's Fiscal Reality Central.