Renda mínima e tobin tax como instrumentos para aliviar a pobreza no Brasil

Mídias sociais no setor público: uma análise do uso como ferramentas de comunicação e interação em organizações no Brasil

Tobin Tax and Market Depth

This paper investigates-on the basis of the Cont-Bouchaud model-whether a Tobin tax can stabilize foreign exchange markets. Compared to earlier studies, this paper explicitly recognizes that a transaction tax-induced reduction in market depth may increase the price responsiveness of a given order. We find that the imposition of a transaction tax may still achieve a triple dividend: (1) exchange...

Bases Para Um Movimento Pela Inovação Tecnológica No Brasil

Recurrent mistakes in the treatment of technological innovation in Brazil are identified. A movement on behalf of technological innovation is proposed, based on: an understanding of what technological innovation is (and is not); appreciation of every relevant component; recognition of its systemic and self-coordinating character; and the establishment of an appropriate support.

Heterogeneous traders and the Tobin tax

To study the effectiveness of the Tobin tax, we develop a model of heterogeneous interacting agents. Traders either speculate on the basis of technical or fundamental analysis, or abstain from the market, a decision which depends on profit considerations, as well as communication between agents. Simulations generate stylized facts such as unit roots in exchange rates, fat tails for returns, or ...

[Breast cancer surgery: an old-fashioned procedure for a rising public health problem].

O câncer foi, por muito tempo, considerado um problema de saúde em países desen volvidos. Segundo levantamento de dados atuais e perspectivas futuras, os países em desen volvimento concentram agora a maior parte da população mundial com a doença. No entanto, os sistemas de saúde nessas áreas são reconhecidamente mal estruturados para absorver esse problema emergente. O aumento progressivo na pr...