This research evidences the value of flexibility on the investment decision, in the exploration sector of copper, face to the existence of an abandonment option. The results of three evaluation models are compared: the Net Present Value; the Binomial and a Suitable Binomial to the exploration...

This article intends to evidence the flexibility effect in the investment decision. This flexibility is known by the real options term, these options possess value, which will increase the value of an investment that possesses them. The traditional investments evaluation methods are not enough...

Capital stock in residential structures, as well as the distribution of its appropriation and ownership among families are fundamental determinants of the wealth, welfare and productivity of the economy. As part of a broad project on the stock of capital of the Brazilian economy in the 20th...

This paper uses Data Envelopment Analysis (DEA) to evaluate the financial sustainability of the Brazilian electricity distributors taking into account financial statements, regulatory and quality information in the period between 2011 and 2014. It also analyzes characteristics of the companies...

Este artigo analisa as saídas de investimentos de capital de risco em Portugal, abordando a relação existente entre as formas de saída e a assimetria de informação a elas associadas. A hipótese central é a de que a ocorrência de saídas parciais está associada à sinalização da...

Neste artigo elabora-se uma abordagem empírica, com recurso a técnicas econométricas apropriadas para dados em painel, que visa contribuir para a redução (ou mesmo eliminação) do desvio entre os valores contabilístico e de mercado das empresas. Tendo por base 20 das empresas que mais...

Capital stock in residential structures, as well as the distribution of its appropriation and ownership among families are fundamental determinants of the wealth, welfare and productivity of the economy. As part of a broad project on the stock of capital of the Brazilian economy in the 20th...

This paper uses Data Envelopment Analysis (DEA) to evaluate the financial sustainability of the Brazilian electricity distributors taking into account financial statements, regulatory and quality information in the period between 2011 and 2014. It also analyzes characteristics of the companies...

Portuguese Abstract: O artigo tem como objetivo analisar a influência que a implantação de práticas de governança corporativa e a integração vertical possuem sobre a lucratividade de empresas do setor de energia elétrica do mercado brasileiro. A revisão teórica tomou como base a Teoria...

This paper estimates the conditional volatility of the main Brazilian stock market index (Ibovespa), using traditional models of the GARCH family and models of stochastic volatility (SV). Most model selection and performance criteria suggest that both aproaches capture well Ibovespa's...