Michael Linden catches the GOP economic adviser in a contradiction:
If we apply the same [Holtz-Eakin] methodology to the entire lifespan of the Recovery Act, not just to 2009, the multiplier becomes even more impressive. The total cost of the stimulus bill was about $800 billion, delivered over the course of two years. The difference between actual GDP through the first quarter of 2011 and what GDP would have been had it continued “falling off a cliff” is around $3.3 trillion—implying a multiplier of more than 4.
Graphs after the jump:
The Dish 