Navegando por Autor "Carazza, Luís Eduardo Barbosa"

Agora exibindo 1 - 10 de 10

Ascensão dos investidores pessoa física na bolsa de valores: uma análise descritiva do perfil do investidor e previsão utilizando a metodologia ARIMA
(2021-07-21) Simão Júnior, Jaime José; Carazza, Luís Eduardo Barbosa; http://lattes.cnpq.br/1625397086677760
This paper aims to study and understand the rise of new investors in the stock exchange, as well as to draw a detailed profile of the characteristics of this part of the population interested in income investments variable and perform a forecast using the Arima methodology. To achieve this objective, data was collected on minority investors directly from B3 - Brasil, Bolsa, Balcão, which is the company responsible for the stock exchange in Brazil. In this way, characteristics such as region, gender, age group were analyzed to draw a profile about the shareholders. In recent years, there has been a large increase in new investors that invest their resources in stocks and other related investments. Of Form, it's necessary to investigate whether such rise's structural and permanent or are only a consequence of A passing movement that will break down at some future time. A Forecasting methodology Arima will try to answer this question with a forecast for the first months of 2021, to identify whether this upward movement is maintained for those months. However, some Limitations in the forecast will be highlighted.
Bitcoin: soberania financeira ou armadilha fiduciária?
(2023-12-20) Barbosa, Lucas dos Santos; Carazza, Luís Eduardo Barbosa; http://lattes.cnpq.br/1625397086677760; http://lattes.cnpq.br/6178087346414083
The Bitcoin attempts to challenge the fiduciary system by solving various problems associated with the centralized model. However, due to the blockchain's limited processing capacity, scalability issues abound. As a result, users are exploring alternative options to Bitcoin, including the Lightning Network (LN), a solution that offers fast and economical transactions. However, the Lightning Network is highly centralized and controlled by a handful of entities, raising concerns about privacy, security, rate adjustments, and government regulation. An alternative and popular approach is to engage in Bitcoin contracts through brokers, banks, payment institutions, and custodial wallet companies. While this method is more convenient, it raises privacy and fractional reserve issues. It is concluded that these applications of bitcoin contradict the principles outlined in the white paper and push the currency towards a fiat money model. In light of this, it is necessary to educate users about the benefits of using bitcoin in a decentralized way, encouraging the practice of peer-to-peer (P2P) transactions and self-custody storage.
A contribuição da economia de mercado para o bem-estar social
(2020-11-03) Santos, Marcílio Souza dos; Carazza, Luís Eduardo Barbosa; http://lattes.cnpq.br/1625397086677760; http://lattes.cnpq.br/0726934749232518
Societies are always looking for the best ways to obtain goods and services for their welfare and to mitigate the conflicts that arise in the relationships involving people and organizations. In this context, this article aims to present the contribution of the market economy to the welfare of societies, focusing on the economic, social and political dimensions. Theoretical arguments defend economic freedom according to the following emphases: institutional, business (this one in two authors), transactional and civilizational. The data analysis points to the most satisfactory performance in economic, social and political indicators by the freest countries, in comparison with the less free ones. The research analyzes the contribution of economic freedom for the progress of societies.
Contribuições de Nassim N.Taleb para a Economia: estudo do risco, incerteza e antifragilidade
(2019) Fernandes, Lucas de Oliveira; Carazza, Luís Eduardo Barbosa; http://lattes.cnpq.br/1625397086677760
This paper aims to describe Nassim Taleb main contributions to economics through the study of risk and uncertainty, based on his books Risking one's skin, The Black Swan Logic and Antifrágil, works that deal with beliefs, religions, risk, uncertainty, everyday asymmetry, finance, protection and options. Taleb accepts in his texts that at all times we’re prone to the inevitable chance of the random Black Swan, which are unlikely events that can occur and devastate societies or even enrich people; according to Taleb we humans are prone to compile information and learn about limited areas of the world. Knowledge, rather than acquiring broad wisdom in knowledge,limitingus toavoidingtheunknownandmissingopportunities.Talebthen wonders if this wisdom is true or fabricated. When the Black Swan comes, who will be responsible for the bad choices of compiling knowledge? For Taleb when the Black Swan happens, the best position is to be Antifragile, for him to be Antifragile is not just a protection, but a way of life, to explain how being Antifragile Taleb uses theories such as options, probabilities, cognitive sciences with psychological bias. Therefore, this work will bring a guide on the random aiming at Antifragility according toTaleb.
Interferência estatal e moeda: o papel do bitcoin
(2021-12-17) Vasconcelos, Wallysson Raymar do Amaral; Carazza, Luís Eduardo Barbosa; http://lattes.cnpq.br/1625397086677760; http://lattes.cnpq.br/3867316727024211
Modelo de otimização de portfólio para gestão de ativos no Brasil: avaliação da aplicabilidade do modelo de Markowitz no Brasil com foco em Regimes Próprios de Previdência Social
(2025-09-22) Calazans Filho, Gutemberg Peixoto; Carazza, Luís Eduardo Barbosa; http://lattes.cnpq.br/1625397086677760
A sustentabilidade dos Regimes Próprios de Previdência Social (RPPS) depende diretamente de uma gestão eficiente dos recursos previdenciários, especialmente no que se refere ao atingimento da meta atuarial. Este trabalho tem como objetivo avaliar a aplicabilidade do modelo de alocação de ativos proposto por Harry Markowitz (1952) na gestão das carteiras dos RPPS, respeitando as restrições estabelecidas pela Resolução CMN nº 4.963/2021. A pesquisa propõe a construção de portfólios otimizados que busquem superar a meta atuarial teórica, representada pela taxa de juros real proposta pela Secretaria de Previdência para RPPS com passivos atuariais de 20 anos, com acréscimo da expectativa de inflação par ao ano de 2025, publicada através do Boletim Focus. A metodologia considera diferentes classes de ativos permitidos pela regulamentação vigente, com base em proxies de mercado, além de utilizar indicadores de desempenho ajustados ao risco. Os resultados demonstram que a diversificação eficiente, aliada ao uso de técnicas quantitativas, pode oferecer alternativas mais vantajosas frente à alocação tradicional concentrada em títulos públicos. O estudo contribui para o debate sobre a adoção de modelos quantitativos na gestão previdenciária, com foco na maximização do retorno ajustado ao risco e no cumprimento das obrigações atuariais dos regimes.
A teoria do free banking no contexto econômico brasileiro: uma análise das implicações que podem emergir de um sistema bancário livre
(2019) Nascimento, Victor Gabriel da Silva; Carazza, Luís Eduardo Barbosa; http://lattes.cnpq.br/1625397086677760
This paper presents the financial model known as free banking or the Laisses-faire banking system, as a viable alternative to the current configuration of the Brazilian banking market. Given the oligopolistic character of this sector in the country, a model of greater freedom for banks can facilitate the entry of new institutions that can reduce the concentration and interest levels that traditional banks have. Considering the existence of five large banking institutions operating in Brazil that together hold a significant part of the market and behave in a cartelized manner. In another aspect, it is also intended to address the possibility of these institutions having the freedom to issue their own currencies, bringing the money market to the competitive market level.
Teste da abordagem de Benjamin Graham para investidores defensivos no mercado de ações brasileiro
(2024-12-05) Santos Neto, Antonio Carlos dos; Carazza, Luís Eduardo Barbosa; http://lattes.cnpq.br/1625397086677760; http://lattes.cnpq.br/6202501154328319
Graham acreditava que os investidores que desejassem empenhar pouco tempo na avaliação de ativos poderiam ser bem-sucedidos se adquirissem ações de companhias que atendessem a sete critérios que medem a qualidade de seu desempenho financeiro e atratividade de preço. Apesar de diversos estudos brasileiros demonstrarem a efetividade da filosofia de Graham, de nosso conhecimento, nenhum aplica as recomendações da exata forma publicada pelo autor. Este artigo, portanto, tem como objetivo verificar se a estratégia destinada a Investidores Defensivos apresentada por Benjamin Graham em O Investidor Inteligente é eficaz no mercado acionário brasileiro. Para atingir tal objetivo, construímos carteiras de ações que atendiam os critérios de Graham em abril de cada ano entre 2011 e 2020. Posteriormente, avaliamos seu desempenho com base no Modelo de Três Fatores Fama-French em intervalos de 2, 4, 6, 8 e 10 anos de investimento. Por fim, utilizamos a técnica dos Mínimos Quadrados Ordinários (MQO) para estimar os coeficientes do Modelo. Os resultados revelam que as carteiras apresentaram retorno excedente ao mercado nos intervalos de oito e dez anos de investimento. Assim, a estratégia se mostra eficaz para o mercado de ações brasileiro.
A transparência e os gastos públicos: um ensaio sobre os municípios de Pernambuco
(2019) Barbosa, Wenderson Gomes; Coelho Júnior, Álvaro Furtado; Carazza, Luís Eduardo Barbosa; http://lattes.cnpq.br/1625397086677760; http://lattes.cnpq.br/1248468009730949; http://lattes.cnpq.br/2117478533374586
The application of the new laws to oversee the mandates of the representatives (national, state and municipal) has been contributing to a greater dissemination of public data, thus the Brazilian governments have become increasingly transparent in relation to their expenses. In this paper, the Municipal Transparency Index of the State of Pernambuco, prepared by the Court of Audit of Pernambuco, was used, together with the fiscal and socioeconomic variables that show the respective municipal situations, to analyze if the municipalities that are correctly applying the new norms and improving publicity and management of public resources. Thus, the objectives were to analyze the contribution and verify how the improvement of the indicators are impacting on the publication and access to the data in the municipalities that are part of the state of Pernambuco. For that, a multiple linear regression was performed using the Ordinary Least Squares Method, in the scores obtained by the municipalities in the respective ranking;it was preliminarily shown that there is a relationship between the variable variables and the level of transparency.
A visão austríaca sobre os ciclos econômicos
(2021-03-03) Silva, Emerson Sales da; Carazza, Luís Eduardo Barbosa; http://lattes.cnpq.br/1625397086677760
This work proposes to analyze the phenomenon of economic cycles in the view of Austrian economists, bringing a liberal analysis of the economy. For this analysis, it will be necessary to know in depth some important factors such as interest rate, expansionary and contractionary monetary policy, State, Central Bank and inflation. The theory of Austrian business cycles demonstrates how the interventionist state, with the help of central banks, ends up generating economic crises as they create artificial information for economic agents.