We present an endogenous growth model with human capital and learning by doing. Human capital is not an input factor in the production process of final output but it affects the ability to build up knowledge capital as a by-product of cumulated investment (learning by doing). Human capital is...

We present an endogenous growth model with externalities of capital and elastic labour supply where we allow for public debt and public spending that is welfare enhancing. We analyze effects of different debt policies on stability and how these policies affect long-run growth and welfare. The...