One of the most striking macroeconomic developments during the last three decades is the rise and persistence of large fiscal deficits in a number of countries. Despite recent major fiscal reforms around the world, many countries suffer from recurrent large fiscal imbalances that often reflect...

Using a simple stochastic growth model that nests both exogenous and endogenous growth, this paper shows that the growth rate should be mean stationary if growth is exogenous and difference stationary if growth is endogenous and any variable affecting the investment rate is difference...