Galli, S. (2006) 'Patents and research tools in a Schumpeterian growth model with sequential innovation.', Rivista di politica economica., 2006 (XI-XII, Nov-Dec). pp. 63-104.
In the standard quality-ladder growth models, R&D firms undertake independent innovation processes to discover ideas whose value immediately transfers into tradeable applications. Here the standard multisector neo-Schumpeterian growth theory is extended by decomposing product innovation into a two-stageuncertain research activity. I compare the general equilibrium innovative performance of an economy where early-stages scientific results are patentable with the general equilibrium innovative performance with unpatentable basic ideas freely disseminated by public research institutions (universities). I show that the widely documented increasing complexity experienced in applied R&D magnifies the public basic R&D inefficiencies and suggests the patentability of research tools.
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