We explore the roles of subsidies in the Matsuyama model (1999) of growth through cycles alternating perpetually between two phases featuring neoclassical investment and neo-Schumpeterian innovation respectively. Subsidies to R&D investment or to the purchase of newly invented intermediate goods...

We derive the social optimum and optimal government debt in an intergenerational model of growth with fertility, elastic labor, human capital externalities and a non-convex feasible set. Debt through lump-sum taxation increases leisure and labor, reduces fertility, and can achieve the social...