In the past couple of days the administration has been discussing the employment impact of its stimulus package. Employment has declined steadily since adoption of the package, so it might seem odd to claim that it has already had beneficial impacts. The administration’s response is that employment would have declined even faster without the stimulus, so hundreds of thousands of jobs have been saved.

The administration might be right, but how can we know? The short answer is, we cannot know with any confidence because we cannot know what employment would have been in the absence of the stimulus. Thus, the concept of “jobs saved” is problematic; it allows the administration to conclude, no matter how bad things get, that the stimulus worked because the economy would have been even worse without the stimulus.