The purpose of this work is to gather some evidence about the relationship between crude prices and speculation in oil futures and options markets focusing on WTI markets. In order to shed some light on this link, a brief characterization of what a speculative bubble is and how it works is...

Traditionally the differences between the organizations of the public property sector and those of the private one are pointed out. In addition to the classic failures on both of these productive sectors, based on the organizational “500 Maiores e Melhores” operating in Portugal that are...

The main purpose of this work is to provide a panoramic and almost exhaustive view on the "rational expectations hypothesis" literature published until 1992. Several issues less well known are emphasized. Many results and comments are integrated and presented in a somewhat innovative fashion.

The technological and institutional environment influences the way of doing research and the relationships between its participants. Intellectual property is a strategic issue to build the institutional framework of the new technological regime and therefore the dynamics of innovation in...

The paper estimates a panel-VAR using data on total expenditures, tax receipts and overall grants received for 5.544 Brazilian municipalities observed from 2002 through 2010. A sequence of hypotheses was investigated by the means of overidentification test statistics. Among our main findings, we...

In this work we consider modeling the past volatilities through a Generalized Autoregressive Conditional Heteroskedasticity (GARCH) model using the Bayesian approach. Asymmetries in the shocks are accommodated by smooth transition models for the variance. We discuss problems related to the...

This paper investigates the price elasticity of Brazilian residential electricity demand for 2012-2016. The estimations use random and fixed effects panel data and impulse response function in a VAR/VECM model for time series analysis. Furthermore, we analyze the consumers in two categories, Low...

In this article, we investigated which of the convergence hypotheses - absolute, conditional or club - best describes the movement of the income per worker for the countries of Latin America and East Asia between 1960 and 2000 using the methodology proposed by Johnson and Takeyama (2003). The...

A prática de incentivos fiscais à inovação é comumente adotada por diversos países com objetivo de estimular as formas na realização de atividades tecnológicas, sendo especialmente dirigidos as atividades de Pesquisa e Desenvolvimento (P&D). O uso generalizado desses incentivos culminou...

The technological and institutional environment influences the way of doing research and the relationships between its participants. Intellectual property is a strategic issue to build the institutional framework of the new technological regime and therefore the dynamics of innovation in...