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10 agosto 2016

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Como são feitas as bolas de tênis?

Vida romântica e a pornografia

A verdadeira ciência da felicidade

Colaboração acadêmica é um nova forma de colonização?

Achou que era palavras-cruzadas, mas era uma obra de arte

Teoria dos Jogos é inútil

Esssa é a opinião de um dos melhores e mais importantes economistas da atualidade: Ariel Rubistein. É muito raro encontrar um acadêmico que tenha uma visão tão realista e crítica da academia e tem a coragem de dizer o que pensa sobre a (in)utilidade de sua pesquisa.

"I have devoted most of my life to economic theory and game theory. I believe that I would like to do some good for humankind and, in particular, for the people in Israel, the country where I was born and where I make my home. I would like to make an impact and redress injustices. Ostensibly, all this should motivate me to utilize my professional knowledge in order to bring some relief to the world. But, the thing is, that is not how I feel. [...]

The heart of game theory is not empirical science. It does not study how people actually behave in strategic situations. It is doubtful whether it is even possible to generalize about the way people will behave in a situation like the Hide and Seek Game. After all, people are diverse. [...]

Game theory is written in a mathematical language. [...] Personally, the nearly magical connection between the symbols and the words in game theory is what captivated me. But there are also disadvantages: The formal language greatly limits the audience that really understands it; the abstraction blurs factors that natural thought takes into account and the formality creates an illusion that the theory is scientific.

Game theory fascinates me. It addresses the roots of human thought in strategic situations. However, the use of concepts from natural language, together with the use of ostensibly “scientific” tools, tempt people to turn to game theory for answers to questions such as: How should a system of justice be built? Should a state maintain a system of nuclear deterrence? Which coalition should be formed in a parliamentary regime? Nearly every book on game theory begins with the sentence: “Game theory is relevant to …” and is followed by an endless list of fields, such as nuclear strategy, financial markets, the world of butterflies and flowers, and intimate situations between men and women. Articles citing game theory as a source for resolving the world’s problems are frequently published in the daily press. But after nearly forty years of engaging in this field, I have yet to find even a single application of game theory in my daily life. [...]

In my view, game theory is a collection of fables and proverbs. Implementing a model from game theory is just as likely as implementing a fable. A good fable enables us to see a situation in life from a new angle and perhaps influence our action or judgment one day. But it would be absurd to say that “The Emperor’s New Clothes” predicts the path of Berlusconi [...]

The search for the practical meaning of game theory derives from the perception that academic teaching and research directly benefit society. This is not my worldview. Research universities, particularly in the fields of the humanities and social sciences, are part of a cultural fabric. Culture is gauged by how interesting and challenging it is, and not by the benefit it brings. I believe that game theory is part of the culture that ponders the way we think. This is an ideal that can be achieved in many ways – literature, art, brain research and yes, game theory too. If someone also finds a practical use for game theory, that would be great. But in my view, universities are supposed to be “God’s little acre,” where society fosters what is interesting, intriguing, aesthetic and intellectually challenging, and not necessarily what is directly beneficial.
Fonte: aqui
 

Rir é o melhor remédio

Fonte: Aqui

09 agosto 2016

Punição

Usando dados do Cadastro de Expulsões da Administração Federal, Portulhak e Barilli verificaram a punição de contabilistas do setor público federal:

(...)a investigação verificou quais motivos levaram contabilistas à expulsão do serviço público federal brasileiro. Dados secundários foram obtidos por meio do Portal da Transparência do Governo Federal, compreendendo as punições ocorridas entre janeiro de 2003 e fevereiro de 2016, entre os quais foram destacados o fundamento legal que embasou a expulsão, UF e região de lotação, cargo efetivo, eventual cargo ou função de confiança, ano de publicação da portaria de punição, tipo de punição e gênero. Os resultados revelaram que as principais motivações para a expulsão de contabilistas do serviço público federal brasileiro, especialmente por meio de demissões, envolvem práticas de valimento, improbidade administrativa e lesão aos cofres públicos, englobando, principalmente, técnicos em contabilidade, profissionais lotados na região Norte e no Distrito Federal, servidores do sexo masculino e sem cargo ou função de confiança, verificando-se um aumento nas expulsões a partir de 2011. Espera-se que tais resultados subsidiem ações de órgãos representativos a fim de conscientizar os contabilistas presentes no setor público com o intuito de mitigar a ocorrência de atos ilícitos provocados por estes no exercício de sua função.

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