Percorrer por autor "Pinto, Alberto A."
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- Dynamics and Biological ThresholdsPublication . Burroughs, N. J.; Ferreira, M.; Martins, J.; Oliveira, B. M. P. M.; Pinto, Alberto A.; Stollenwerk, N.Our main interest is to study the relevant biological thresholds that appear in epidemic and immunological dynamical models. We compute the thresholds, of the SIRI epidemic models, that determine the appearance of an epidemic disease. We compute the thresholds, of a Tregs immunological model, that determine the appearance of an immune response.
- An Economical Model For Dumping by Dumping in a Cournot ModelPublication . Banik, Nilanjan; Ferreira, Fernanda A.; Martins, J.; Pinto, Alberto A.We consider an international trade economical model where two firms of different countries compete in quantities and can use three different strategies: (i) repeated collusion, (ii) deviation from the foreigner firm followed by punishment by the home country and then followed by repeated Cournot, or (iii) repeated deviation followed by punishment. In some cases (ii) and (iii) can be interpreted as dumping.We compute the profits of both firms for each strategy and we characterize the economical parameters where each strategy is adopted by the firms.
- A Repeated Strategy for DumpingPublication . Martins, José; Banik, N.; Pinto, Alberto A.In this work, we study the phenomena of dumping in a duopoly market through an infinitely repeated game. We consider two firms of different countries competing in the same country. When both firms are cooperating, if the foreign firm deviates from cooperation this can be interpreted as dumping and a period of punishment can be imposed to the foreign firm. After this, firms can play continuously the deviation-punishment game or compete à la Cournot. Previously, we observe that the repeated strategy of deviation-punishment is not adopted in the case of symmetric demand equations. Here, we observe that this strategy of repeated dumping can appear as the best repeated strategy when the demand equations are non-symmetric.