Before she became the chairman of the president's Council of Economic Advisors, Christina Romer demonstrated in a research paper prepared for the National Science Foundation in 2007 that it costs the private-sector economy $4 ($1 of tax and nearly $3 of economic damage) to provide the government with $1 to spend.
In a research paper published by the National Bureau of Economic Research in 2006, former CEA Chairman Martin Feldstein concluded that the private-sector cost of an additional dollar of income-tax revenues for the government is $2.50 ($1 of tax and $1.50 of economic damage).
Paying off Obama's 10-year string of deficits that add up to $9.3 trillion with income tax increases of $9.3 trillion over 10 years would cost the private sector $23 trillion (Feldstein) to $37 trillion (Romer).
In effect, American families would over time lose an amount greater than an entire year of GDP — a blow far more severe than the damage being done to them by the current recession.