Price discovery using a regime-sensitive cointegration approach

This work proposes a method to examine variations in the cointegration relation between preferred and common stocks in the Brazilian stock market via Markovian regime switches. It aims on contributing for future works in "pairs trading" and, more specifically, to price discovery, given that, conditional on the state, the system is assumed stationary. This implies there exists a (conditional) moving average representation from which measures of "information share" (IS) could be extracted. For identification purposes, the Markov error correction model is estimated within a Bayesian MCMC framework. Inference and capability of detecting regime changes are shown using a Montecarlo experiment. I also highlight the necessity of modeling financial effects of high frequency data for reliable inference.

“O sindicato que a ditadura queria”: o Ministério do Trabalho no governo Castelo Branco (1964-1967)

Esse trabalho tenta analisar a atuação do Ministério do Trabalho através da articulação de seus ministros com outras áreas da burocracia estatal, durante o governo Castelo Branco, para, por um lado, reprimir e expurgar opiniões contrárias ao regime ditatorial e, por outro, promover uma nova política para os trabalhadores, o “novo trabalhismo”. O termo condensava a ideia da área econômica de ‘democratizar’ as oportunidades, ampliando as atribuições dos sindicatos, deslocando o seu foco das reivindicações salariais para o desenvolvimento, em associação com o governo, de projetos e programas de investimentos nos setores sociais de produtividade indireta. Para implementar a proposta, cada ministro teve que lidar com as pressões advindas do processo de alteração da política trabalhista e articular os seus interesses pessoais com as atribuições da pasta. Arnaldo Sussekind resistiu às demandas para o fim da estabilidade, alterou a Lei de Greve, permitiu o fracionamento do 13º salário e abriu espaço para a implantação da política salarial. Ao mesmo tempo promoveu uma massiva intervenção nos sindicatos, cujos processos permitem conhecer melhor o interior da burocracia estatal, perceber os argumentos utilizados para afastar as diretorias das entidades e questionar a tomada de decisões dentro do ministério sob o novo contexto social pós-golpe. Walter Peracchi Barcelos utilizou a pasta como trampolim político, propondo e executando ações repressivas que lhe garantiam vantagens políticas e negligenciando projetos da área econômica, como o Fundo de Garantia por Tempo de Serviço, que ameaçavam importantes conquistas dos trabalhadores. Por fim, Luiz Gonzaga do Nascimento e Silva reformulou o Banco Nacional da Habitação e unificou a previdência, ações que permitiram a transferência de atribuições e recursos do Estado para a iniciativa privada. A pesquisa, portanto, sustenta que o Ministério do Trabalho, após o golpe, perdeu poder político dentro do governo por permitir a transferência de suas atribuições para camadas da elite empresarial e para os militares, forçando os sindicatos a modificarem seus canais de diálogo e suas reivindicações para se adaptarem ao novo contexto.

A reconstrução da indústria brasileira: a conexão entre o regime macroeconômico e a política industrial

Este artigo, de cunho eminentemente analítico, mostra que no âmbito da política macroeconômica, é necessária consistência entre as políticas monetária, fiscal, cambial e salarial para viabilizar taxas de juros reais médias inferiores às taxas de retorno médias sobre o capital, taxas de câmbio reais competitivas (em torno da taxa de “equilíbrio industrial”) e taxas de salários que evoluam de acordo com o crescimento da produtividade, condições para que se assegure o crescimento econômico sobre bases sustentáveis. Já com respeito à política industrial, é preciso perseguir estratégias de diversificação produtiva, notadamente no setor manufatureiro e nos segmentos tradable do setor de serviços, mediante a identificação de prioridades estratégicas tanto nas cadeias produtivas, segmentos e setores próximos à base de vantagem comparativa preexistente, como naqueles mais próximos à fronteira tecnológica internacional. Embora os argumentos analíticos favoreçam a estratégia de diversificação produtiva, esta não deve ser confundida com semi-autarquia, o que significa que as cadeias e setores que não sejam foco da política industrial devem ter alíquotas de importação zero ou próximas de zero.

Welfare cost of inflation considering adoption decisions and interest-bearing deposits

Attanasio et al. (JPE, 2002) have used microeconomic data on households to provide new estimates of the welfare costs of infiation using Bailey's unidimensional welfare measure as a basis for their calculations. Such a measure does not properly take into consideration lhe fact that the majority of households in their sample (58.7 percent) holds not only bank deposits and currency, but also a second type of interest-bearing assct. This work devises alternative formulas which account for the existence of bank deposits and a sccond interest-bearing asset in the economy, as well as for adoption decisions regarding alternative financiai technologies.

O regime da memória através dos diários virtuais: o caso dos blogs

CARVALHO, Luciana Moreira.;CARVALHO, Monica Marques. O registro da memória através dos diários virtuais:o caso dos blogs.Em Questão, Porto Alegre, v. 11, n. 1, p. 53-66, jan./jun. 2005.ISSN 1808-5245. Disponivel em:. Acesso em: 04 out. 2010. ão

Caracterização analítica e geométrica da metodologia geral de determinação de distribuições de Weibull para o regime eólico e suas aplicações

O regime eólico de uma região pode ser descrito por distribuição de frequências que fornecem informações e características extremamente necessárias para uma possível implantação de sistemas eólicos de captação de energia na região e consequentes aplicações no meio rural em regiões afastadas. Estas características, tais como a velocidade média anual, a variância das velocidades registradas e a densidade da potência eólica média horária, podem ser obtidas pela frequência de ocorrências de determinada velocidade, que por sua vez deve ser estudada através de expressões analíticas. A função analítica mais adequada para distribuições eólicas é a função de densidade de Weibull, que pode ser determinada por métodos numéricos e regressões lineares. O objetivo deste trabalho é caracterizar analítica e geometricamente todos os procedimentos metodológicos necessários para a realização de uma caracterização completa do regime eólico de uma região e suas aplicações na região de Botucatu - SP, visando a determinar o potencial energético para implementação de turbinas eólicas. Assim, foi possível estabelecer teoremas relacionados com a forma de caracterização do regime eólico, estabelecendo a metodologia concisa analiticamente para a definição dos parâmetros eólicos de qualquer região a ser estudada. Para o desenvolvimento desta pesquisa, utilizou-se um anemômetro da CAMPBELL.

Play behaviour in nonhuman animals and the animal welfare issue

The mission of defining animal welfare indicators is methodologically difficult, limited, and possibly impossible. A promising alternative, however, to evaluate suitable environmental conditions is the assessment of play behaviour. In the present review, we summarise the general aspects of play behaviour in nonhuman animals and propose its use as a potential indicator of animal welfare. Play behaviour probably occurs in most vertebrates and some invertebrates, but predominately in mammals. It is also more frequent in young males and is associated with the environmental context in which animals find themselves. Animals play if they are healthy and well-fed, but not if they are under stressful conditions or if they are in a stressful state. We can therefore use the prevalence of play behaviour as an indicator of suitable environmental conditions, considering the specificity associated with the above-mentioned modifying factors.

O regime constitucional da contribuição de intervenção do domínio econômico aplicável ao setor de combustíveis

The performance of the State in the economic area is only legitimized when to be given in virtue of the protection of the principles established constitutionally. Thus, the economic intervention of the State prioritizes the formation of a joust economic order and in this context, it fulfills to us to define, to the long one of this work, the contours of the intervention of the State in the economic domain in the presence of the Federal Constitution of the Republic of 05 of October of 1988, and, more specifically, in the petroliferous economic sector by means of the interventive contribution instituted after the Constitutional amendment 33/2001, with Law 10.336/2001. With the creation of this institute, in Brazil, emerged innumerable quarrels concerning its constitutional legitimacy, directing uncurling of the research to the study of the state intervention through this contribution and its constitutional limits, in the purpose to demonstrate the parameters for its institution and application. In this way, the interventive contribution in the fuel sector (CIDE-Combustíveis) shows itself as an intervention instrument on the economic domain, acting in way to finance the indirect performance of the State, specially in what concerns to the promotion of the principle of sustainable development principle. Therefore, CIDE-Combustíveis is an able instrument to concretizes the mentioned constitutional principle. Thus, the division of its incomes promotes the consolidation of the principle of the cooperative federalism. In this direction, from premises of the environmental tax law, this intends to demonstrate the utility and constitutionality of this exaction tax, primordially with regard to the realization of the basic right to the balanced environment

A Competência normativa das agências reguladoras e seus limites principiológicos no direito brasileiro

The transition of the liberal state to welfare state, globalization and the crisis of funding from the government spending on the multiple roles demanded an overhaul of the means of intervention in the economic domain and structure organizational of the Public Administration by enhancing the performance of regulatory functions. Therefore appear in Brazilian law independent regulatory agencies with legal administrative particular that gives autonomy increased, with fixed terms and stability of its leaders, police and competencies, normative and administrative judges. In this scenario, given the autonomy granted by the laws of the creation of regulatory agencies, the legislative competence becomes the most contentious issue, as not infrequently is innovation in the legal system. The main foundations of innovative extension producible by regulatory agencies, which diverges doctrine, are the constitutional attribution of own competence of the Public Administration and the discretionary power. Thus, it is necessary to delimit the constitutional and legal foundations of special legislative powers of these autarchies in our legal system, seeking ways to limit and control the production rules of those entities, for the purpose of position them before the powers constitutionally constituted. We note that with the constitutionalisation of administrative law regulatory agencies found limits to its performance in the normative constitutional principles, especially through the principles of efficiency, morality and proportionality, which has enabled a more effective control of their normative acts

Regime constitucional do direito privado das organizações religiosas

In Brazil, constitutional clauses regarding religious freedom have concrete applications in Private Law. Church-State Law, or "Ecclesiastical Law of the State," studies the legal principles which may be applicable to religious activity, exercised individually and collectively. The study of Church-State Law in Brazil lacks a thorough introduction to the constitutional and civil aspects of religious organizations: such an introduction is the main end of this work. Following a brief introduction, the main aspects of religious freedom and the principle of private autonomy as it concerns religious organizations are explained. A careful introductory analysis of Church-State Law in Brazil is thus developed: (1) the historical aspects, including a detailed account of the relations between Catholicism, the established religion up to 1889, and the government; (2) the current constitutional principles, as presented in the text of the federal Constitution of 1988, regarding the rights and claims of religious organizations; (3) how the same constitutional principles are to be used in the interpretation of Private Law (especially the Civil Code of 2002), fostering and preserving the uniqueness of religious organizations in the Brazilian legal system. A brief complementary chapter presents some aspects of the legal position of religious institutions in three other nations whose constitutional documents have influenced the current Brazilian federal Constitution (France, Spain, and the United States)

Bovine Biofertilizer and Water Regime Effects on Growth and Bulb Quality of Garlic

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Strategies to promote farm animal welfare in Latin America and their effects on carcass and meat quality traits

Several initiatives, including research and development, increasing stakeholders' awareness and application of legislation and recommendation, have been carried out in Latin America to promote animal welfare and meat quality. Most activities focused on the impact of pre-slaughter conditions (facilities, equipment and handling procedures) on animal welfare and meat quality. The results are encouraging; data from Brazil, Chile and Uruguay showed that the application of the improved pre-slaughter handling practices reduced aggressive handling and the incidence of bruised carcasses at slaughter in cattle and pigs. These outcomes stimulated some to apply animal welfare concepts in livestock handling within the meat production chain as shown by the increasing demand for personnel training on the best. To attend this demand is important to expand local studies on farm animal welfare and to set up (or maintain) an efficient system for knowledge transfer to all stakeholders in the Latin America meat production chains. However, it is clear that to promote the long-term progress in this field is important to deliver practical solutions, assuring that they match the technical and financial conditions of those who are the target of training programs. (C) 2012 Elsevier Ltd. All rights reserved.