This paper: (1) shows that optimal transition dynamics in a simple endogenous growth model can account for much of the behavior of the stock of public capital in the U.S. economy over the last 70 or so years; (2) shows that the observed decline in the U.S. ratio of public to private capital...

This paper develops a quantitative theoretical model for the optimal provision of public capital. We show that the ratio of public to private capital in the U.S. economy since 1925 evolves in a manner that is broadly consistent with an optimal transition path derived from a simple growth model....

This paper evaluates the efficiency implications of various fundamental tax reforms in an infinite-horizon endogenous growth model with public-sector investment in human capital. A fully optimal reform requires the government to adjust its expenditures on education, training, or R&D to take into...

This paper examines the economic effects of tax reform in an endogenous growth model that allows for two types of useful public expenditures; one type contributes to human capital formation while the other provides direct utility to households. We show that the optimal fiscal policy calls for...