This paper investigates the impact of a 'free drug program' on the market equilibrium of drugs. We introduce a screening model of the hard drug market in which dealers use payment and punishment options to screen between high and low risk users. We show that, if a free drug program selects...

We conduct a proper test of the claim that people are overconfident, in the sense that they believe that they are better than others. The results of the experiment we present do not allow us to reject the hypotheses that the data has been generated by perfectly rational, unbiased, and...

Many studies have shown that people display an apparent overconfidence. In particular, it is common for a majority of people to describe themselves as better than average. The literature takes for granted that this better-than-average effect is problematic. We argue, however, that, even...

Consumer advice should reduce asymmetric information between consumer and supplier as well as provide confidence in markets. However, consumer advice itself is characterised by asymmetric information between adviser and consumer. The article figures out this aspect and shows how consumers cope...

Psychological states side by side with the bounded rational expectations among social agents contributes to the pattern of consumptions in economic system. One of the psychological states are the envy – a tendency to emulate any gaps with other agents’ properties. The evolutionary game...

We analyse the informational content of market shares and prices in a dynamic duopoly model in which consumers have heterogenous information on the quality differential (q) of two goods. It is shown that when firms are poorly informed about q, and therefore the ability of prices to reveal...

This contribution provides a game theoretical derivation of market demand as a function of the level and distribution of income in the considered economy: if (i) the price is low, everyone buys the good; if (ii ) the price is high, only the rich buy the good (a status good in a narrow sense). If...

This paper studies a principal-agent relationship in a contractual crime setting. Suppose an agent and a principal sign a contract stipulating some transfer of funds from one player (say the agent) to the next (the principal) contingent on the state of the world announced by the first player. In...

En este artículo se obtienen dos caracterizaciones de las asignaciones de equilibrio walrasiano en economías de intercambio con un número finito de consumidores. Ambas caracterizaciones se establecen en términos del poder de veto de la "gran coalición", formada por todos los agentes de la...

Regular annuities provide payment for the duration of an owner's lifetime. Period-Certain annuities provide additional payment after death to a beneficiary provided the insured dies within a certain period after annuitization. It has been argued that the bequest option offered by the latter is...