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 estimates quality and cost innovations in the early automobile, personal computer, rigid disk drive, computer monitor, and computer printer industries using industry-level data on firm numbers, price, quantity, and quality and an equilibrium model of industry evolution. The results...

The study analyses the market for semiconductor memory chips, in particular EPROMs. Semiconductors are very interesting industry for studying empirically the dynamics of innovation. Given the short product life cycles of generations of chips, the market dynamics unfold much more rapidly than in...

This paper examines exclusionary practices allegedly used by Intel to maintain its dominant position in sales of microprocessors for IBM-compatible personal computers (PCs), focusing primarily on the preferential allocation of scarce product among customers. The paper considers the period...