Este artigo analisa, através de dados intradiários, coletados minuto a minuto, o efeito do dia de vencimento de contratos de opções de compra de ações sobre a negociação das ações subjacentes negociadas na Bolsa de Valores de São Paulo. Para tanto, foram usadas as séries de opções...

English Abstract: The long-horizon event study methodology is used to document the severe impact of the US subprime mortgage crisis on the Colombian economy. The estimated parameter of a constant mean return model is used to derive the “abnormal return” on the market portfolios of Colombia...

In this article we investigate the capacity of antecedent variables, among them admissions for aggression, in the prediction of the number of homicides in Brazil. The main objective is to eliminate a gap regarding the large time lag in the dissemination of information about these deaths in the...

In this article we investigate the capacity of antecedent variables, among them admissions for aggression, in the prediction of the number of homicides in Brazil. The main objective is to eliminate a gap regarding the large time lag in the dissemination of information about these deaths in the...

The paper investigates the demographic and socioeconomic determinants of aggregate savings rate of Brazilian families in the recent past. The main results are consistent with the predictions of the theory of the cycle of life/permanent income, properly extended to incorporate institutional and...

We evaluate the efficiency of expenditure in health care provision by comparing various output measures (life expectancy; infant survival rate; years of life recovered from diseases; population; area) from the health system of Brazilian and OECD countries with an expenditure measure (health...

The Household Budget Survey from IBGE is the only source of microeconomic data on savings of Brazilian families. As this research has been carried out at intervals of at least five years, it is important to discuss and empirically assess whether the estimated models with latest lagged research...

The Programa Crescer is a sub-program under the Programa Nacional de Microcredito Produtivo Orientado (PNMPO), considered a microcredit policy aimed at low-income formal and informal micro-entrepreneurs, providing credit without collateral and with interest rates subsidized by the Governo...

Collective production organizations (cooperatives and associations) can bargain for better prices and lower costs, which increases net revenue, on the one hand, and facilitates the adoption of technologies, on the other. This study seeks to evaluate the impact of family production in Brazil and...

Technological change is a determining factor in economic growth. Since the 1970s, Brazil has become an example in promoting agricultural research. The result was total factor productivity (TFP) growth. What would be the impact of public policies on productivity growth? The present study sought...