Some dynamic theory of macroeconomic policy effects on income and prices under the government budget restraint

Consider a macroeconomic model with constant capacity, an inflation adjustment process depending on excess demand, a government budget restraint, and plausible assumptions. Steady-state equilibrium paths have constant (possibly zero) inflation rates. Stability is assured if the endogenous policy variable is money, government purchase, or the tax rate; if it is government debt instability is assured (contrary to Blinder-Solow). Exogenous increases in money or government purchases raise prices in the short and long run. An open market purchase raises prices in the short run, but if money is endogenous it reduces money and prices in the long run.