Based on a method developed by Leybourne, Kim and Taylor (2007) for detecting multiple changes in persistence, we test for changes in persistence in the dividend-price ratio of the NASDAQ stocks. The results confirm the existence of the so-called Dotcom bubble around the last turn of the century...

This paper reports the development and estimation of a Vector Autoregressive (VAR) econometric model representing the financial statements of a firm. Although the model can be generalized to represent the financial statements of any firm, this work was carried out as a case study, where the...

Conventional cost accounting assumes that the relation between cost and volume is symmetric for volume increases and decreases. We test an alternative model where costs increase more when activity rises than they decrease when activity falls by an equivalent amount. We find, for a sample of...

We perform an event study to investigate stock returns associated to the announcement of equity issues by Brazilian firms between 1992 and 2003 aiming to determine the market reaction before, during, and after the issue announcement. After measuring abnormal returns by OLS, we used ARCH and...

We test two models with the purpose of finding the best empirical explanation for the capital structure of Brazilian firms. The models tested were developed to represent the Static Tradeoff Theory and the Pecking Order Theory. The sample consists of firms listed in the Sao Paulo (Brazil) stock...

This empiric-analytic paper, aims at verifying whether the firms’ capital structure is sensitive to leverage measures. It also verifies whether most of the leverage variability is due to financial debts. The sample consists of all non-financial companies with data available, positive equity...

Bank profitability is usually considered a relevant factor to provide the reliability of the financial system, reducing the risks associated to events of bankruptcy in this sector. In Brazil, however, there has been a great deal of discussion concerning the amount of earnings of financial...

This study investigates multiple changes in persistence in the dividend–price and price–earnings ratio of the NASDAQ Composite Index. Recent time series methods that are capable of signalling and dating asset price bubbles are employed, in particular the method developed by Leybourne, Kim,...

This article examines the existence of lead-lag effects between the U.S. stock market (NYSE) and the Brazilian stock market (Bovespa), i.e., whether upward and downward price movements in the NYSE are followed, on average, by similar movements in Bovespa, which would enable predicting stock...

We investigate the empirical relationship between stock returns, return volatility and trading volume in the Brazilian stock market (Bovespa). Our sample contains stock return and trading volume data from a theoretical portfolio including stocks participating in the Bovespa Index (Ibovespa)...