The present article intend to verify the presence of speculative rational bubbles, starting from the identification of switching regime of the returns generation process in the brazilian market exchange, BOVESPA, for the Plano Real period (July of 1994 to March of 2004). In order to achieve this...

We analyze the relationship between innovation and firms' performance in Brazil using a comprehensive database that cross-references innovation information by PINTEC (Technological Innovation Research) of the IBGE (Brazilian Institute of Geography and Statistics) and financial information from...

The present article intend to verify the presence of speculative rational bubbles, starting from the identification of switching regime of the returns generation process in the brazilian market exchange, BOVESPA, for the Plano Real period (July of 1994 to March of 2004). In order to achieve this...

We analyze the influence of time-, firm-, industry- and country-level determinants of capital structure. First, we apply hierarchical linear modeling in order to assess the relative importance of those levels. We find that time and firm levels explain 78% of firm leverage. Second, we include...

This paper examines the procedure to estimate betas for firms whose shares are not traded every day. Betas are estimated by three methods: repetition of the last quotation (RUC), tradeto-trade (TT) and Scholes-Williams’ adjustment (SW). There are three return intervals: daily, weekly and...

This paper examines the proposition that private equity funds (PEFs) improve the performance of their investee companies. The study was divided into two parts: (i) an analysis of the characteristics of the private equity investment cycle that impact on corporate performance and (ii) validation...