Actually if you look at ROI on the Obama investment of QE, bailouts and Stimulus then his GDP growth would take about 45 years to recoup the investment to the taxpayers without interest payments.
Of course that wil never happen because we will be in continuous deficit spending unless we wipe out 25% of all Federal expenditures.
Reagan let it run its course and took a year and a half of pain and then we boomed for decades.