Do temporary cash rebates provide much macroeconomic stimulus?
Core argument: The implied multiplier from the 2008 U.S. tax rebates is less than 0.2, suggesting the rebates contributed little macroeconomic stimulus.
The 2008 U.S. tax rebates were a leading counterexample to the belief that discretionary fiscal policy was not sufficiently nimble to be used for stabilization policy. A tax rebate of $100 billion, equal to 11% of monthly income, was passed in February 2008. It was paid out mostly from May through July 2008. Among the 85% of the tax units receiving a rebate, the average check was $1,000. Figure 2 shows real U.S. aggregate disposable income and consumption, in billions of January 2008 dollars at a monthly rate. The left and right axes have different starting points but the same vertical length so that changes are equivalent across the two series. Disposable income exhibits a large spike, with a peak in May 2008 when almost $50 billion was disbursed. In contrast, consumption expenditures display a small hump, with a peak in May, but the magnitude of the rise is tiny compared to the spike in disposable income. [We] reconcile micro estimates with large MPCs [that in turn suggest large macro effects] with the aggregate data. In both cases, the implied multiplier is less than 0.2, suggesting that the rebates contributed little macro stimulus.



