In many innovation settings, ideas are generated over time and managers face a decision about if and how to provide in-process feedback to the idea generators about the quality of submissions. In this paper, we use design contests allowing repeated entry to examine the effect of in-process...

Suppliers play a major role in innovation processes. We analyze ownership allocations and the choice of R&D technology in vertical R&D cooperations. Given incomplete contracts on the R&D outcome, there is a tradeoff between R&D specifically designed towards a manufacturer (increasing investment...

We present a dynamic model in which an employee of a firm searches for business projects in a changing environment. It is costly to induce the employee who found a successful project in the past period to search for a new project. Past success can therefore result in profitreducing corporate...

We study a quality-ladder model of endogenous growth that produces stochastic leadership cycles. Over a cycle, industry leaders can innovate several successive times in the same industry, gradually increasing the magnitude of their technological lead before being replaced by a new entrant....

In this work, we explore the relations between sales growth and a set of innovation indicators that capture the different sources, modes and results of the innovative activity undertaken within firms. We exploit a rich panel on innovation activity of Spanish manufacturing firms, reporting...

There is considerable interest in understanding how important market frictions are in stifling the transmission of ideas from one firm to another. Although the theoretical literature emphasizes the importance of these frictions, direct empirical evidence on them is limited. We use comprehensive...

Innovation is one of the usual suspects in defining differences in performance among firms, according to a strong and diverse theoretical framework. Understanding the diversity that exists within the population of innovative firms is essential to elaborate appropriate innovation policies. Our...

In this paper we analyze an inter-temporal optimization problem of a representative firm that invests in horizontal and vertical innovations and that faces a constraint with respect to total R&D spending. We find that there can exist two different steady-states of the economy when the amount of...

We investigate the causal effect of patent rights on cumulative innovation, using large-scale data that approximate the patent universe in its technological and economic variety. We introduce a novel instrumental variable for patent invalidation that exploits personnel scarcity in post-grant...