Research on intellectual property has focused on formal legally recorded rights that we call deeded, most often measured by granted patents. Meanwhile, other “defacto” IP (mainly purposive secrecy and natural excludability) has become more important because of the increasing closeness of...

This paper shows that the effects on real income and the price level of the 1973-1974 oil price increase are quite ambiguous on both theoretical and empirical grounds. The theoretical analysis reviews standard results and extends them to analyze the steady-state equilibrium and endogenous...