We study the effect of the fragmentation of intellectual property rights on optimal patent design. The major finding is that when several complementary innovative components must be assembled to operate a new technology, the patentability requirements should be stronger than in the case of...

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....

I model environmental overcompliance as a signalling device. In the model, a benevolent government may or may not tighten environmental standards. Production costs under the stricter environmental regulation are private information to the firms, and tightening environmental policy is socially...

Il presupposto di questo lavoro è che le leggi di movimento del capitalismo possono essere considerate come il risultato di un conflitto permanente tra le due classi sociali antagoniste - lavoratori e capitalisti; un conflitto che riguarda in primo luogo la distribuzione del reddito ma anche la...

Questa sezione è dedicata ad una esposizione della struttura di fondo degli Essays, che, come già detto, è largamente comune anche alle opere successive di Kalecki. Poiché di tratta degli aspetti più noti e meno controversi del pensiero kaleckiano, l'esposizione sarà il più possibile...

We analyze games between two countries that use the tariff as a threat to induce each other to follow monetary policies equivalent to those that would obtain under a cooperative game. The analysis shows that under certain assumptions concerning the shares of tariff revenues that the countries...

We study the R&D performance of Cournot aligopolists. To this end we model a one-shot noncooperative game in which firms invest in R&D, with the aim of being first in an uncertain competition for a patentable cost-reducing innovation. The incentives to innovate are market profits and not...

Since the work of Schumpeter, it has been argued that there may exist a trade-off between static and dynamic efficiency. As a contribution to this debate, in this paper we compare the R&D performance of CCournot and Bertrand oligopolists. We model a one-shot noncooperative game in which firms...

In this paper we study a one-shot game of R&D between two price-setting firms that are asymmetrically placed as they produce at different cost levels. First we prove the existence and the properties of a noncooperative equilibrium. Then, we show that the higher (lower) the discount rate, the...

In this paper we study a one-shot game of R&D between two price-setting firms that are asymmetrically placed as they produce at different cost levels. The R&D technology displays increasing returns in the form of invisibilities. We show that there exists a unique equilibrium in pure strategies,...