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...

This paper examines the effect of finance on long-term economic growth using Bayesian model averaging to address model uncertainty in cross-country growth regressions. The literature largely focuses on financial indicators that assess the financial depth of banks and stock markets. These...