“When libertarians question the merit of President Obama's stimulus package, a frequent rejoinder is, 'Well, we have to do something.' This is hardly a persuasive response. If the cure is worse than the disease, it is better to live with the disease.
In any case, libertarians do not argue for doing nothing; rather, they advocate eliminating or adjusting policies that are bad for the economy independent of the recession. Here is a stimulus package that libertarians can endorse:”
From Greg Mankiw