This paper shows that social capital increases economic growth by raising government investment in human capital. We present a model of stochastic endogenous growth with imperfect political agency. Only some people correctly anticipate the future returns to current spending on public education....

We present new evidence about a mechanism - the broadening of the tax base - through which governments increase state capacity. Our difference-in-differences identification strategy exploits the staggered introduction of the income tax across twentieth-century US states. We find that tax...