This paper proposes a theoretical framework for studying the invention of new products when demand is uncertain. In … this framework, under general conditions, the threat of ex post entry by a competitor can deter invention ex ante … operating system monopolist, by its mere presence, can deter the invention of complements, to its own detriment as well as that …

Patent citation data are used in a growing body of economics and business research on technological diffusion. Research … diffusing outward from the patenting entity. Until now, there exists little evidence on whether or not patent citations are a … good measure of knowledge flows. Our paper assesses the legitimacy of using European patent citations as a measure of …

issue, we build a model in which the value of an innovation depends both on the type of innovation implemented (product …, process) and on the existence of a patent protection or not. We obtain a three-equation model that links the values of product … and process innovations to the value of patent protection. This model and the feature of the data imply the estimation of …

The objective of this paper is to examine the long-run determinants of internal migrations from South Italy, and, in …

are taken into account. The paper proposes a theory of innovation and market structure, showing that the relation between … innovation and competition depends on horizontal spillovers, vertical spillovers, and cooperative settings. The private …

. Uniting Schumpeter's concern for innovation with Keynes' concern for uncertainty and expectations formation, this article … focuses on the behaviour of entrepreneurs confronting uncertainty caused by innovation. Entrepreneurs' behaviour is … opened up by a successful innovation generates a state of optimism in the minds of single entrepreneurs, which eventually …