Stefano Trento

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We present a dynamic model where the accumulation of patents generates an increasing number of claims on sequential innovation. We compare innovation activity under three regimes –patents, no-patents, and patent pools– and find that none of them can reach the first best. We find that the first best can be reached through a decentralized tax-subsidy(More)
In this paper we propose an empirical method to develop mapping strategies between a gestural-based interface (the Gloves) and physically based sound synthesis models. An experiment was conducted to investigate which gestures listeners associate with sounds synthesised using physical models, corresponding to three categories of sound: sustained, iterative(More)
An innovative firm with private information about its indivisible process innovation chooses strategically whether to apply for a patent with probabilistic validity or rely on secrecy. By doing so, the firm manages its rivals’ beliefs about the size of the innovation, and affects the incentives in the product market. A Cournot competitor tends to patent big(More)
We present a model of sequential innovation in which an innovator uses several research inputs to invent a new good. These inputs, in turn, must be invented before they can be used by the final innovator. As a consequence, the degree of patent protection affects the revenues and cost of the innovator, but also determines the incentives to invent the(More)
This paper describes the development of a prototype of a sonic toy for pre-scholar kids. The device, which is a modified version of a football ratchet, is based on the spinning gesture and it allows to experience four different types of auditory feedback. These algorithms let a kid play with music rhythm, generate a continuous sound feedback and control the(More)
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