codified knowledge determine the returns on different occupational choices in different environments. The data are drawn from … privileged access to tacit knowledge, thus confirming previous analyses on the role of social learning (e.g. Guiso and Schivardi …, 2005). On the other hand, our results suggest that the returns on codified knowledge in entrepreneurial activities may …

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 …