Who is the victim? It's not black and white

This article examines the news media coverage surrounding the death of Aboriginal man Trevor Duroux, who was killed by a coward's punch. The 'big' media failed to pay this tragic death any attention. The articles attempts to explain why.

Social values and species conservation: the case of Baudin's and Carnaby's black-cockatoos

We investigated how the socio–political and ecological environment are associated with the conservation management strategies for two rare, endemic and almost identical Australian white-tailed black-cockatoos: Baudin's (Calyptorhynchus baudinii) and Carnaby's black-cockatoo (C. latirostris). Substantially less investment and action has occurred for Baudin's black-cockatoo. Interviews with key informants revealed that this disparity has probably arisen because Baudin's black-cockatoo has long been considered a pest to the apple industry, lives primarily in tall forests and has had little research undertaken on its biology and threats. By contrast, Carnaby's black-cockatoo has been the subject of one of the longest running research projects in Australia, is highly visible within the urban environment and does not appear to affect the livelihoods of any strong stakeholder group. We suggest the social context within which recovery efforts occur could be an important determinant in species persistence. We argue that social research is fundamental to a better understanding of the nature of efforts to conserve particular species, the factors associated with these efforts and their likelihood of success.

August 1999: Financial Black Holes and Other Challenges

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Collaboration Is the New Black

Orange may be the new black, but as I have seen only five minutes of that show, I can’t really use it here. Besides, based on the five minutes I saw, I would assume it is a series written by males. Not since the Victoria’s Secret catalog have I seen so many women wearing fewer clothes, or engaging in so many unmentionable acts. I’ll stop there because my Victorianism is showing, I’m sure.

Aplicações do modelo black-scholes ao mercado de opções de compra, utilizando-se metodologias diferenciais para o cálculo de volatilidade

Este trabalho cuida de avaliar a eficiência do mercado de opções de ações da bolsa de valores de são Paulo (BOVESPA). A avaliação é feita através do modelo Black-Scholes, e traz como principal novidade diversas estimativas de volatilidade. Portanto torna-se um teste conjunto da eficiência do mercado, do modelo Black-Scholes e das diversas estimativas de volatilidade. O objetivo principal ~ determinar a volatilidade que gera o melhor retorno , isto é , aponta a maior ineficiência do mercado. Foram utilizadas opções de Paranapanema-pp e Petrobr's-pp no per(odo de novembro de 1987 a outubro de 1988. Dois testes de eficiência foram realizados para cada volatilidade estimada . Em ambos observou-se que o mercado é ineficiente, e no segundo obtivemos evidência de que uma das estimativas de volatilidade gera um retorno maio

Racial discrimination in Brazil: interviews with leaders of the black movement

Racism in Brazil has some specificities when compared to other countries, for, differently from, for instance, South Africa and the United States, Brazilian Constitutions, ever since the Independence (1822), have never distinguished the citizens according to race or color. Furthermore, since the mid-1900s, Afro-Brazilian cultural manifestations, such as, for example, samba and capoeira, started to be valued as a part of our “national identity”. These specificities make race relations in Brazilian society a much more complex issue. This paper is focused on selected parts of interviews that deal with the nature of racial discrimination in Brazil, extracted from interviews with leaders of the black movement produced within the scope of the project “The History of Black Movement in Brazil: organization of a collection of Oral History Interviews”, developed by CPDOC, Getulio Vargas Foundation (Rio de Janeiro). These “histories within history”, as told by our interviewees, may be transformed into images that will be able to condense a given reality, thus allowing us to evaluate the gains obtained by oral history methodology.

Utilização do modelo de Black-Litterman para gestão de hedge funds do Brasil

O modelo Black-Litterman calcula os retornos esperados de mercado como uma combinação de um conjunto de expectativas específicas de cada investidor e um ponto de referência neutro. A combinação dessas duas fontes de informações são feitas pelo modelo utilizando a abordagem bayesiana. Os resultados obtidos a partir do modelo Black-Litterman, ao contrário da abordagem tradicional, são bastante intuitivos, estáveis e consistentes em relação as expectativas dos investidores. O objetivo dessa dissertação é fazer uma análise detalhada de cada um dos componentes do modelo Black-Litterman e verificar se a utilização o modelo de Black-Litterman, introduzindo as opiniões de mercado com base no relatório FOCUS do Banco Central, supera o retorno dos fundos multimercados brasileiros.