Navegando por Autor "Melo, André de Souza"

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Análise da eficiência do mercado futuro e spot de milho no contexto regional dos anos de 2018 a 2022: os casos de São Paulo, Pernambuco e Bahia
(2024-02-20) Silva, Marcos Vinicius Neri da; Melo, André de Souza; http://lattes.cnpq.br/8808755622712441; http://lattes.cnpq.br/6505040676007325
This study analyzed the efficiency of the corn futures market in the states of Bahia, Pernambuco, and São Paulo from 2018 to 2022, highlighting the significance of corn in the national economy, both in the domestic market and in exports. Employing the Engle-Granger cointegration test and the ECM model, the research focused on the time series of future contracts and spot prices in Bahia, Pernambuco, and São Paulo. The aim was to ascertain whether the futures market reflects reality and accurately predicts prices in these regions, in accordance with Eugene Fama's Efficient Market Hypothesis (1970). The findings indicated that future prices are effective in predicting spot prices, demonstrating that, despite some short-term adherence limitations, the futures market serves as a reliable predictor in the context of corn trading in these locations.
Análise da eficiência dos serviços educacionais nos municípios do estado de Pernambuco
(2022-05-30) Oliveira, Maurício Francisco de; Melo, André de Souza; http://lattes.cnpq.br/8808755622712441; http://lattes.cnpq.br/9211127982002673
Education is a natural process of the action of individuals in search of the creation and accumulation of knowledge that enables the development of the whole society. For individuals to increase human capital, private and public investment is needed. However, it is necessary to assess the result obtained with this investment. Thus, the objective of this work is to verify the current efficiency in the provision of educational services within the state of Pernambuco. In addition, verify which are the main variables considered that affect educational performance. For this, the methodology was based on two complementary techniques: Data Envelopment Analysis, to examine the relationship between the educational performance of elementary school students in relation to the resources used and the TOBIT model to verify the variables that influence the efficiency of public spending of elementary education in the municipalities of Pernambuco. Initial results indicate that efficiency is not related to increased spending per student. A higher level of average monthly income of those responsible for permanent private households does not have a positive correlation with education. According to the analysis of the variables of the Tobit regression model, the IDHM showed that it has an inverse correlation with efficiency, the lower the IDHM, the greater the efficiency scale of a DMU in which municipalities in poor regions have high efficiency scores. Population density had a positive correlation with efficiency. The results demonstrate that the transfer of FUNDEB resources to the municipalities in the state of Pernambuco requires other socioeconomic variables to explain the impact on efficiency. The fact that the methodology does not take into account the different technologies used in each Municipality stands out as limitations. Likewise, the research only uses a small number of variables within the diversity of factors that interfere in education.
Evolução do preço da gasolina no Brasil
(2023-04-27) Fonseca, Mônica Azevedo; Melo, André de Souza; http://lattes.cnpq.br/8808755622712441; http://lattes.cnpq.br/1517598095172068
The present work seeks to analyze the evolution of the price of gasoline in Brazil, and shows how several factors can change the price at the fuel pumps. The increase in the price of gasoline is one of those responsible for the high inflation in the country in recent times, as the prices of inputs rise and directly reflect on the increase in the price of derivatives and food. This factor compromises the purchasing power of individuals. The methodology used was a bibliographic review, graphic analysis and descriptive statistics. As a result, it is observed that the price of gasoline has been influenced in recente years by the price of a barrel of oil, but it must be noted that there are several factors that contribute to the increase in gasoline prices, and many of them are complex and interconnected. Some of the main factors include changes in the global oil market, the pricing policy of producing countries, supply and demand issues, and government tax and subsidy policies. It should be noted that the pandemic period was also one of the factors that influenced price behavior in recent years. In conclusion, the price of gasoline corresponds to shocks in the short term by economic activity and inflation and in the long term by economic activity and demand for gasoline, indicating a strong cause of price behavior via macroeconomic variables and a smaller measure between demand and supply.
Setor sucroalcooleiro em Pernambuco: uma análise sobre a produção de etanol entre 2000 e 2022
(2024-03-07) Silva, Antônio Duarte Marques Oliveira da; Melo, André de Souza; http://lattes.cnpq.br/8808755622712441; http://lattes.cnpq.br/0193793183041821
As an alternative to remedy the impacts caused by the oil shocks of the 1970s, PROALCOOL was a program that was successful in promoting the biofuel ethanol, however, since deregulation, the sugar and alcohol sector has gone through several phases of growth and declines in production, influenced due to various political and market factors. The general objective of this work is to understand and analyze the gross production of ethanol in Pernambuco between 2000 and 2022. To this end, the specific objectives were to describe the historical context of ethanol production in Pernambuco and Brazil, to identify the main factors that influenced production throughout throughout the analyzed series and understand the relationship between price, sales and productivity with ethanol production. As a methodology used, a bibliographical review, graphical analyzes and descriptive statistics were carried out. The research results showed that ethanol production in Pernambuco over the last few decades has been influenced by several factors and that despite the measures adopted by the government to stimulate the sector in recent years, it still faces challenges in ensuring continuous and competitive growth. to consumers. Justifying that it is essential to understand the policies adopted for ethanol and their impact on the market and society. The historical analysis of these policies and their results can contribute to the development of new strategies for the future.