This paper examines the quantitative implications of government fiscal policy in a discrete-time one-sector growth model with a productive externality that generates social increasing returns to scale. Starting from a laissez-faire economy that exhibits local indeterminacy, we show that the...

The authors analyze an endogenous growth model with economy-wide increasing returns, in which a public input is essential for private production. Within such a framework, it is shown that a continuum of equilibria and global indeterminacy can arise for reasonable parameter values, simply due to...