1000 resultados para Finanças - Processo decisório


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Pós-graduação em Economia - FCLAR

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

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Economic crises caused by speculative bubbles are recurring in economic history but there is still no consensus on how it begins, grows and overflows. Economists and regulators seem to be inefficient in predicting and preventing this process, which is so detrimental to economic functioning. This failure proved to be obvious with the American subprime crises, which had great impact on various sectors of the U.S. economy. In this paper, we perform a literature review of the traditional theory of finance, mainly represented by the Efficient Market Hypothesis. According to this theory, asset prices always reflect their intrinsic value, assumption that doesn’t match the price boom followed by a crash, observed in the crisis generated by speculative bubbles. Finally, we present a new way to analyze this phenomenon, in the light of the investors’ behavioral aspects and the flaws inherent to the financial markets

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A presente investigação analisa o papel dos enviesamentos cognitivos no processo de tomada de decisão financeira. Neste sentido, procurou-se verificar se os fenómenos psicológicos influenciam os indivíduos no processo da tomada de decisão num contexto de incerteza. Para a concretização do estudo, utilizou-se uma amostra de 530 estudantes do Instituto Politécnico de Leria distribuídos por quatro cursos de Licenciatura: Contabilidade e Finanças, Engenharia Informática, Engenharia Mecânica e Gestão da Escola Superior de Tecnologia e Gestão. Como metodologia, utilizou-se um questionário que foi posteriormente aplicado e respondido presencialmente entre os meses de novembro e dezembro de 2015. Os resultados obtidos indicam que não foram encontrados evidências estatisticamente significativas para comprovar a observação dos efeitos referentes ao enviesamento de excesso de confiança mensurado através do nível de experiência de investimento em mercado de capitais e através do sexo dos inquiridos. Também não foram encontrados evidências estatísticas significativas que comprovam os efeitos dos enviesamentos disponibilidade e conservadorismo/representatividade. Não obstante, para os restantes enviesamentos ancoragem e efeito disposição, os resultados obtidos indicam que existem evidências estatísticas que os indivíduos no processo da tomada decisão são influenciados por fatores cognitivos. Deste modo, através da comparação das respostas dos estudantes das duas áreas de formação (Ciências Empresariais e Engenharia), foi verificado que o efeito ancoragem é refletido na tomada de decisão dos estudantes consoante a natureza dos cursos, o que indica que o conhecimento adquirido através da formação é uma aspeto relevante. Por fim, os resultados do estudo confirmam ainda que os estudantes no processo da tomada de decisão num contexto de incerteza tendem a ser avesso ao risco no domínio dos ganhos e propenso ao risco no domínio das perdas.

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A Tradução Técnica: análise e proposta de tradução de extrato de livro em finanças corporativas Tradução e análise de um texto em inglês para português do Brasil, este trabalho dedica-se, primeiramente, à apresentação de questões genéricas relacionadas à tradução(a saber, a intraduzibilidade do texto), para, em seguinda, se debruçar sobre questões ligadas à tradução especializada: fiabilidade, padronização e validação. Após esse preâmbulo, discorrese acerca dos elementos presentes no texto de partida que mereceram um maior cuidado ao longo do processo de tradução. A isso se segue a tradução dos primeiros 4 (quatro) capítulos do livro Finance for Managers, do professor Eduardo Martínez Abascal, que constitui o corpus deste trabalho; Abstract: The Technical Translation: analysis and translation of an excerpt from a Corporate Finance book. In broad terms, this dissertation comprises the translation of a text from English into Brazilian Portuguese followed by a commentary which examines the translation process. After a short introduction discussing general translation-related issues, it will be time to introduce the reader to a few words on the translation decisions made throughout the entire work. The following section will be dedicated to the translation of a text on Corporate Finance, namely the first 4 (four) chapters from the book Finance for Managers, by Professor Eduardo Martínez Abascal.

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This paper discusses the results obtained with homogeneous catalytic ozonation [Mn (II) and Cu (II)] in phenol degradation. The reduction of total phenols and total organic carbon (TOC) and the ozone consumption were evaluated. The efficiency in phenol degradation (total phenol removal) at pH 3, with the catalytic process (Mn (II)), increased from 37% to 55% while the TOC removal increased from 4 to 63% in a seven-minute treatment. The ozonation process efficiency at pH 10 was 43% and 39% for phenol and TOC removal, respectively. The presence of both metallic ions (Mn2+ and Cu+2) in the ozonation process resulted in a positive effect.

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Malaria is still one of the major diseases in the world, causing physical and economic problems in tropical regions. Artemisinin (Qinghaosu), a natural compound identified in Artemisia annua L. , is an effective drug mainly against cerebral malaria. The action of this drug is immediate and parasitaemia in the treatment of drug-resistant malaria is rapidily reduced, justifying the industrial production of artemisinin. This article focuses on the industrial production of this potent antimalarial drug, including strategies for enhancing yield using inexpensive and easy steps.

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Edible mushroom are highly perishable foods. Drying is an alternative to provide safe storage. In this work, the effects of some drying parameters on the quality of Shiitake mushroom were investigated: geometry of the raw material (whole and sliced), drying temperature (50 °C and 70 ºC) and final moisture content (5% and 15% wb). Experimental kinetics of drying was built and color and texture analyses were done in fresh and in rehydrated dried product. The effect of parameters was evaluated by analysis of variance and test of multiple comparisons. Drying kinetics showed that drying happened in falling-rate period and sliced mushroom dried at 70 ºC required lesser drying time than other treatments. Mushroom dried at 70 ºC showed less darkening. Drying time affected mushroom quality, evaluated by great hardness, gummosis and darkening.

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The present work aimed to create a methodology to evaluate the pulverization process with the use of quality tools. It was listed the primary factors, secondary factors, tertiary factors and, with the check list tool support, the list was elaborated. It was evaluated the factors labor, agriculture machine, material and method of 32 pulverization process before pesticide application, in that each factor received a punctuation, having as total sum of 750 points. The medium punctuation to the factors labor, agriculture machine, material and method was 78; 211; 49; 20 and 94 points, respectively. The sum of the factors points for the 32 processes, the minimum value found was 230 and maximum was 620 points. With the proposed methodology, can be identify which common causes of the processes can affect its result.

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Broccoli seeds were coated in a conical-cylindrical spouted bed with an aqueous suspension of hydroxy ethyl cellulose aiming to improve the seeds coating technique using a fluid-dynamic process. An experimental design was applied to investigate the effects of the operating variables: gas temperature, atomizing air pressure and suspension flow rate on the germination of the seeds and on the process efficiency. Results indicated that the operating variables affect both the coating process efficiency and the germination ability. However, the analysis didn t identify differences between the germination potential of coated and uncoated seeds. Coated seeds absorbed up to 10 percent less moisture than the uncoated ones, when the environment temperature and humidity were controlled over a period of time.