scholarly journals Estimando Betas de Mercado com Quebras Estruturais

2018 ◽  
Vol 15 (2) ◽  
pp. 251
Author(s):  
Fernando Nascimento Oliveira ◽  
Fernando Cesar dos Santos Cunha

This study verifies the contribution of a structural break (if any) to CAPM models. Therefore, we used all the assets listed in Bovespa and New York Stock Exchange in monthly frequencies. Three famous structural breaks tests were used. The results show that structural breaks are relevant in most models for most sectors of the economy. Then, the identified structural breaks are inserted in the models and the betas of CAPM models were re-estimated. The Betas that were statistically significant were chosen and their results compared to Market Beta for each sector of the economy. The results show that the estimated Betas resemble Market Beta in more than 78% of the economic sectors of the Brazilian and North-American markets.

2015 ◽  
Vol 42 (2) ◽  
pp. 91-102 ◽  
Author(s):  
Stephen A. Zeff

This paper discusses the circumstances in which the Accounting Principles Board (APB) issued Opinions 3 and 19, in 1963 and 1971, respectively, when the Board encouraged and then required companies to publish a statement of source and application of funds, known as the funds statement. In doing so, the Board both times lagged behind company practice and the views of influential organizations, including the New York Stock Exchange and the Securities and Exchange Commission.


1936 ◽  
Vol 41 (4) ◽  
pp. 563-563
Author(s):  
Francis E. Merrill

2019 ◽  
Vol 12 (4) ◽  
pp. 463-475
Author(s):  
Selma Izadi ◽  
Abdullah Noman

Purpose The existence of the weekend effect has been reported from the 1950s to 1970s in the US stock markets. Recently, Robins and Smith (2016, Critical Finance Review, 5: 417-424) have argued that the weekend effect has disappeared after 1975. Using data on the market portfolio, they document existence of structural break before 1975 and absence of any weekend effects after that date. The purpose of this study is to contribute some new empirical evidences on the weekend effect for the industry-style portfolios in the US stock market using data over 90 years. Design/methodology/approach The authors re-examine persistence or reversal of the weekend effect in the industry portfolios consisting of The New York Stock Exchange (NYSE), The American Stock Exchange (AMEX) and The National Association of Securities Dealers Automated Quotations exchange (NASDAQ) stocks using daily returns from 1926 to 2017. Our results confirm varying dates for structural breaks across industrial portfolios. Findings As for the existence of weekend effects, the authors get mixed results for different portfolios. However, the overall findings provide broad support for the absence of weekend effects in most of the industrial portfolios as reported in Robins and Smith (2016). In addition, structural breaks for other weekdays and days of the week effects for other days have also been documented in the paper. Originality/value As far as the authors are aware, this paper is the first research that analyzes weekend effect for the industry-style portfolios in the US stock market using data over 90 years.


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