Markowitz e o homem econômico
Uma história interessante envolvendo Markowitz, famoso economista responsável pelo desenvolvimento da teoria de carteiras e que contribuiu com a criação de instrumentos de análise de investimento. Quando trabalhava na Rand Corporation , Markowitz tentava determinar como alocar seus recursos de aposentadoria. Pela sua teoria, o processo é fácil: calcular a co-variância histórica dos diferentes tipos de ativos e achar a fronteira eficiente. Mas, após refletir sobre o assunto, Markowitz decidiu aplicar metade em ações e metade de títulos (bonds).
"Mr. Markowitz had proved “incapable of applying” his breakthrough theory to his own money. Economists in his day believed powerfully in the concept of “economic man”— the theory that people always acted in their own best self-interest. Yet Mr. Markowitz, famous economist though he was, was clearly not an example of economic man."
"Mr. Markowitz had proved “incapable of applying” his breakthrough theory to his own money. Economists in his day believed powerfully in the concept of “economic man”— the theory that people always acted in their own best self-interest. Yet Mr. Markowitz, famous economist though he was, was clearly not an example of economic man."
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