Proposed Fiscal Stimulus: My View
I am personally skeptical that the economic weakness is sufficient at this point to justify such a package. Yesterday CBO came out with its forecast, including "growth for the year as a whole of under 2 percent and an increase in the unemployment rate to an average of 5.1 percent." That is similar to the current predictions of some of the best private forecasters, who put near-term growth between 1 and 2 percent.
In this environment, I would prefer to rely on monetary policy as the main source of macroeconomic stimulus. If there were a stronger case for a short-run demand-oriented fiscal stimulus, I would view the compromise package announced today as reasonable. But given where the economy is right now and the best forecasts of where it is heading, the fiscal package seems unnecessary as a short-run measure, while in the long run adding to the debt burden without doing anything to improve incentives for economic growth.
Addendum: The fact sheet says, "This relief would be available to everyone with adjusted gross income less than $75,000 for singles and $150,000 for married couples filing jointly. It will be phased out for taxpayers above those income thresholds". The phase out is an increase in the effective marginal tax rate. So while the plan gives a short-run boost to aggregate demand, it has a short-run depressing effect on aggregate supply.