Investment, R&D, and Long-Run Growth

In the 1990s, growth theory has incorporated imperfect competition in its investigations. This innovation has proven to be seminal: Cleviating from growth models with perfect competition, the new framework featured forward­ looking entrepreneurs. Firms maximize profits intertemporarily, i. e. their in­ vestment leads to instantaneous sunk costs and offers flows of future profits. Firms finance thi...