The incentives to conduct basic or applied research play a central role for economic growth. How does increasing early innovation appropriability affect basic research, applied research, innovation and growth? In a common law system an explicitly dynamic macroeconomic analysis is appropriate....

An engineer graduates if she derives the obvious implications of her instructor's hints. But the patent system rewards only the first to present nonobvious advancements--ideas similarly skilled engineers are not expected to invent. If a fraction of the newly invented hints spill over before the...

In this article we try an exploration, by means of a few simple exercises, of the consequences of introducing into a standard endogenous-growth model with expanding product variety the possibility that the invention process of the new blueprints may follow more than one single predetermined...