Oferta e Demanda para todos (oferta – e demanda – válidas para todos os dias)

c8grh7ixyaa98uqBem fácil esta: há aumento de demanda no dia do jogo, a firma percebe que pode vender em um dia em que estaria fechada (ou seja, a expectativa de que o custo seja menor que a receita no dia do jogo está valendo). Aí ela abre e faz promoçãohá aumento de demanda no dia do jogo, a firma percebe que pode vender em um dia em que estaria fechada (ou seja, a expectativa de que o custo seja menor que a receita no dia do jogo está valendo). Aí ela abre e faz promoção.

Como é que oferta e demanda não funciona, minha gente?

p.s. desta vez, a propaganda é gratuita. Mas só desta vez.

Anúncios

Economia do Crime e Drogas (mas não do jeito que você deve estar pensando…)

Não, não estou falando da polêmica do Bolsonaro sobre castração química, embora o assunto possa ser considerado como um tópico de pesquisa relacionado. De fato, estupro (rape) aparece como um dos crimes analisados pelos autores. Vale a pena pensar no tema? Responda para si mesmo após ler o resumo abaixo e, se possível, o artigo.

A Cure for Crime? Psycho-Pharmaceuticals and Crime Trends

Dave E. Marcotte
Sara Markowitz

Abstract
In this paper we consider possible links between the diffusion of new pharmaceuticals used for treating mental illness and crime rates. We describe recent trends in crime and review the evidence showing that mental illness is a clear risk factor both for criminal behavior and victimization. We summarize the development of a number of new pharmaceutical therapies for the treatment of mental illness that came into wide use during the “great American crime decline.” We examine limited international data, as well as more detailed American data, to assess the relationship between rates of prescriptions of psychotropic drugs and crime rates, while controlling for other factors that may explain trends in crime rates. Using state-level variation in the rates that various drug therapies disperse within populations to identify impacts on crime rates, we find some evidence that the expansion of psychiatric drugs is associated with decreased violent crime rates, but not property crime rates. We find no robust impacts on homicide rates and no effects on arrest rates. Further, the magnitudes of the estimated effects of expanded drug treatment on violent crime are small. Our estimates imply that about 5 percent of the decline in crime during the period of our study was due to expanded mental health treatment. © 2010 by the Association for Public Policy Analysis and Management

Animalis Economicus

Psychonomic Bulletin & Review, 2002, 9 (3), 482-488

Self-control by pigeons in the prisoner’s dilemma
FOREST BAKER and HOWARD RACHLIN 

Pigeons played a repeated prisoner’s dilemma game against a computer that reflected their choices: If a pigeon cooperated on trial n, the computer cooperated on trial n +1; if the pigeon defected on trial n, the computer defected on trial n + 1. Cooperation thus maximized reinforcement in the long term, but defection was worth more on the current trial. Under these circumstances, pigeons normally defect. However, when a signal correlated with the pigeon’s previous choice immediately followed each current trial choice, some pigeons learned to cooperate. Furthermore, cooperation was higher when trials were close together in time than when they were separated by long intertrial intervals

Ficou difícil reclamar do paradigma do homo economicus de uns tempos para cá. O melhor é, realmente, deixar os preconceitos e os livros de auto-ajuda e partir para análises mais detalhadas dos comportamentos humanos e não-humanos.

p.s. (mal-humorado) Tem muita coisa interessante por aí mas pouca gente querendo pesquisar. Fazer política, gazetear e se fazer de vítima dá mais ibope entre os amiguinhos (como sempre foi). Sim, por isso vamos patinar muito nos testes mundias de educação.

Professor, você ensina Economia! Por que não é rico?

Por diversas causas, mas eu prefiro esta explicação. É mais ofensiva (para alguns) e mais engraçada (para mim).

The dark side of emotion in decision-making: When individuals with decreased emotional reactions make more advantageous decisions

Baba Shiva,T, George Loewensteinb , Antoine Becharac

Cognitive Brain Research 23 (2005) 85 – 92

Abstract

Can dysfunction in neural systems subserving emotion lead, under certain circumstances, to more advantageous decisions? To answer this question, we investigated how individuals with substance dependence (ISD), patients with stable focal lesions in brain regions related to emotion (lesion patients), and normal participants (normal controls) made 20 rounds of investment decisions. Like lesion patients, ISD made more advantageous decisions and ultimately earned more money from their investments than the normal controls. When normal controls either won or lost money on an investment round, they adopted a conservative strategy and became more reluctant to invest on the subsequent round, suggesting that they were more affected than lesion patients and ISD by the outcomes of decisions made in the previous rounds.