Recently, some have wondered whether a fiscal stimulus plan could reduce the government's budget deficit. Many also worry that fiscal austerity plans will only bring higher deficits. Issues of this kind involve endogenous changes in tax revenues that occur when output, real wages, and other...

Samuelson's Multiplier-Accelerator model is based on the economic mistake of adding together desired investment and actual savings to derive aggregate expenditure, when it is the sum of actual investment and actual savings. Its fluctuations are not a model of the business cycle, but convergence...