Macroeconomics 20th Edition by Campbell McConnell ,Stanley Brue ,Sean Flynn

Exercise 9

During the recession of 2007-2009, the U.S. federal government's tax collections fell from about $2.6 trillion down to about $2.1 trillion while GDP declined by about 4 percent. Does the U.S. tax system appear to have builtin stabilizers?
A) Yes.
B) No.