In this paper, we consider a society composed of citizens grouped in different economic strata based on income, who must pay taxes, but there are incentives to do so, and a set of public officials (auditors), whose function is to monitor compliance with the tax rules among citizens. We assume...

In this work the evolutionary dynamics of migratory behavior driven by imitation is studied. We show that, any migratory flow, driven by the imitation, can be modeled by a dynamic system, once the rules governing imitative behavior of the population, are established. The parameters...

Since the early nineties in Swedish starts a welfare state transformation process that allows the participation of private operators in sectors emblematic of the welfare state, such as education, health, child care and assistance to adults. To date, experience shows that the coexistence of...

The object of this paper is to show some examples of economies in which singular equilibria occur as a consequence of utility functions and where this equilibria play a crucial rolle to understand the behavior of the economy as a system. An economy will be called singular if little changes in...

In the framework of the general equilibrium theory, we introduce an evolutionary model for an economy with production. This will try to explain the possibility of the emergence of unexpected and unpredictable changes (economic crisis), in the economy as a result of the action, under imperfect...

This paper studies the joint dynamics of corruption and pollution in a model of evolutionary game theory, where firms face a given pollution standard and the government must check the compliance to this standard by means of public officials who can be honest or not. A novelty of our paper is...

The restrictions imposed by the regulatory authorities on the composition of retirement-fund portfolios are aimed at avoiding opportunistic behavior on the part of retirement-fund managers. However, these restrictions reduce the welfare of the shareholders of such funds. In this paper, the...

This paper provides an extended framework to study general equilibrium theory with commodity spaces possibly of infinite dimensions. Our approach overcomes some difficulties found in the literature since it allows the study of the equilibrium when consumption sets may have an empty interior. It...

This work extends the Sard-Smale Theorem to maps between convex subsets of Banach spaces that may have an empty interior.