Akerlof · dissonância cognitiva · economia · Humor · psicologia

Dissonância Cognitiva

Acho que foi Akerlof quem falou sobre a aplicação deste conceito em Economia. Lembrando uma piada do Paulo R. Almeida, dia destes, acho que esta notícia até que caiu bem. Em outras palavras, macacos racionais também passam por dilemas psicológicos similares aos nossos…

Ciência · economia · psicologia

Por que eu gosto de psicólogos?

Eles são mais honestos no debate do que a corja usual. Mesmo que nem todos sejam honestos (quem disse que somos melhores?), os argumentos fazem mais sentido. Bem-vindos, psicólogos.

What economists think about psychologists:
1. Psychologists only study rats, pigeons, college freshman, and crazy people.
2. (Perhaps due to the above,) psychologists are not very rational.
What psychologists think about economists:
1. Economists stubbornly hold to a rational model of man(kind) that (they must know) is obviously wrong.
2. Economists can never agree about what will happen to our economy.

I’ll now give a few comments of my own. First, my impression is that, within academia, economics has a higher status than psychology. Thus you see psychologists sniping at economists but not much of the reverse: economists probably don’t spend much time thinking about psychologists. It reminds me of when I used to teach at Berkeley: we could always get a rise out of the students by mentioning Stanford. But, at Stanford, if you mention Berkeley, nobody cares.

On the substance of the matter, of course psychologists will be able to explain some aspects of economic behavior better than economists can, and economists will be able to explain other aspects of economic behavior. I’d trust the economist more on the price of food and I’d trust the psychologist more on the question of what food a person will actually buy. I don’t know that either side would know “more” than the other.

Vejamos até onde isto vai.

Cultura · economia · psicologia

Cultura importa? Vejamos a vida sexual dos universitários

Sexual survey: a cross-cultural perspective
Fernando Luiz Cardoso

ABSTRACT

This is a comparative cross-cultural investigation and an analysis of the sexual life of presumably middle class college students of four countries: Israel, Colombia, Canada and Brazil. Post graduation-level students of the Institute for Advanced Studies in Human Sexuality (IASHS) in San Francisco collected the data as a PhD requirement. The data analysis revealed that, even though members of various sample groups speak different languages and belong to distinct cultures, they exhibit some similar aspects in their sexual life. Additionally, comparisons were made with the data of the NHSLS Report (USA) in a few selected topics and, again, more similarities were found among the international university students.

Key words: cross-cultural; sexuality; social class; sexual history.

RESUMO

Esta é uma investigação transcultural e uma análise da vida sexual de estudantes universitários provavelmente oriundos da classe média de quatro países: Israel, Colômbia, Canadá e Brasil. Estudantes de pós-graduação do Instituto de Estudos Avançados em Sexualidade Humana (IASHS) em São Francisco coletaram os dados como um dos requisitos do programa de doutorado. A análise dos dados revelou que, apesar dos indivíduos da amostra falarem diferentes línguas e pertencerem a distintas culturas, eles exibem alguns aspectos similares em sua vida sexual. Além disso, comparações foram feitas com os dados do Relatório NHSLS (USA) em alguns tópicos e, novamente, mais similaridades foram encontradas em relação aos estudantes universitários internacionais.

Palavras-chave: transculturalidade; sexualidade; classe social; histórico sexual.

Eis o texto todo.

escolha intertemporal · microeconomia · psicologia

O que determina a propensão marginal a poupar?

Before now psychologists have examined differences between people who plan to save and those who don’t. They haven’t looked at whether those intending to save actually do. Now Anna Rabinovich and Paul Webley have done just that.

The researchers used data collected over several years as part of the the Dutch DNB Household Survey. This included 1360 people who said they planned to save over the next two years and did, and 89 people who also said they planned to save over that time period, but failed.

The successful savers differed from the failed savers in what the researchers called their ‘time horizon’ – that is, the time they said was most important to them tended to be further in the future.

The successful savers also used effective techniques to control their spending, such as setting up an automatic transfer of funds into a savings account every month. This and other techniques used by the successful savers all had one thing in common – they made the saving process partly automatic and so less dependent on willpower. By contrast, the failed savers used ineffective techniques like keeping only small amounts of cash on them when they went out.

Há mais dados sobre o estudo no texto original do blog. Na verdade, o que os caras encontraram? Para nós, economistas, eles acharam mais uma evidência de que a taxa de desconto intertemporal é importante. Dizer que o sujeito mais precavido usa técnicas mais eficazes é, para mim, até redundante. É óbvio que ele faria isto (ok, não custa checar, já que você tem os dados, mas seria digno de nota apenas se o verificado fosse o oposto, né?).

Eis aí mais um fundamento microeconômico das – aparentemente (e tal como expostas por Keynes) esotéricas – funções macroeconômicas.