ABSTRACT
A note on the theories of induced inventions [4] was followed by a coauthored article [6] on the criteria for choice in investments in research. In the part he authored, Parrinello provided a critique of the aggregate growth models in vogue at the time, and the associated notion of productivity. He also set out the reasons for moving on to a more disaggregated approach. Furthermore, he offered a critical discussion of the international trade models utilised in a context of growth, and his incisive criticisms anticipated developments in the neo-Ricardian models of international trade that were to come.
