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Search Results: 1 - 10 of 2190 matches for " Raul Gouvea "
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Designing a Nano Infrastructure for Brazil’s Amazon Water Resources: A Quadruple Helix Approach  [PDF]
Raul Gouvea
Journal of Water Resource and Protection (JWARP) , 2015, DOI: 10.4236/jwarp.2015.71005
Abstract: This paper elaborates on the role of green technologies and innovations in “greening” Brazil’s Amazon region fresh water resources. The paper elaborates on the development of an innovation quadruple helix to better manage the region’s water resources. Brazil accounts for close to 12% of the earth’s fresh water reserves, while most of it is in the Amazon region. The preservation of water reserves on a global scale is of paramount importance in the 21st century. Brazil, however, has not managed its water resources effectively leading to the increasing pollution and contamination of its Amazonian water resources.
Reassessing Export Diversification Strategies: A Cross-Country Comparison  [PDF]
Raul Gouvea, Gautam Vora
Modern Economy (ME) , 2015, DOI: 10.4236/me.2015.61009
Abstract: This article uses a sample of 44 countries to assess their export performance over the period 1988-2012, using the single-index model, a part of the modern portfolio theory. The article builds four clusters of countries classified by the dominance of exports of 1) fuel products, 2) manufactured products, 3) food items and agricultural products and 4) ores and minerals. All countries in the sample obtain a dominant majority of their export earnings from these broad categories of products. The results are that the export portfolios comprised of manufactured products have a superior performance than export portfolios comprised of non-manufactured products. In particular, from a risk-return perspective the export portfolio of manufactured products dominates the export portfolio of food items and agricultural products which in turn dominates the export portfolio of fuel products and of ores and minerals. This domination validates a priori belief that manufacturing goods and exports is the best strategy for development of exports of a country. An important caveat is that this rosy scenario is unlikely to last. The implications for countries and firms are also discussed.
The Arab League: Export Earnings and Economic Development  [PDF]
Raul Gouvea, Gautam Vora
Modern Economy (ME) , 2017, DOI: 10.4236/me.2017.84045
Abstract: The countries of the Arab League paint a diverse picture of economic (and social) performance and export-earnings performance. While Arab countries have formed numerous alliances for one reason or another, the League of Arab States, more popularly known as the Arab League, is the dominant one. One can, however, see a social, political, economic development divide among them. Focusing on the export performance of these countries during the period from 1988 through 2012, we examine stability of export earnings as well as exports’ risk-return profile. The single index model from the modern portfolio theory is used for empirical examination. The results indicate that these countries exhibit a corresponding performance divide for export-earnings. The oil and natural gas exporters show a much higher sensitivity than non-oil exporters. Exporters with a higher proportion of manufactured products show a much lower sensitivity. Examination of risk-return tradeoff reveals a more complicated picture: Qatar, UAE and Bahrain show the highest Sharpe ratio which is a measure of performance based on total fluctuations whereas Lebanon, Jordan and Tunisia show the highest Treynor ratio which is a measure of performance based on market-fluctuations. The study concludes that different socioeconomic development policies are needed for developed and developing countries of the Arab League. Several structural challenges facing these countries are pointed out and discussed to improve economic and export performances. These challenges can be overcome only with sustained resolute action emanating from the highest level of political control.
Corruption and Levels of Economic Development: A Cross-Country Assessment with Special Reference to Africa  [PDF]
Raul Gouvea, Shihong Li, Gautam Vora
Modern Economy (ME) , 2019, DOI: 10.4236/me.2019.109130
Abstract: Cross-country studies of corruption have reported a negative relationship between corruption and economic development. Yet the causal direction is unclear. We posit that the relationship between corruption and economic development is innately interdependent or bidirectional because they coevolve within a country. Moreover, corruption and economic development interact with governance, culture, and social development, forming an interdependent system of quintuple helix. We examine these factors with a sample of 157 countries, as well as a subsample of 46 African countries. The results indicate that as countries move away from a factor-driven economy towards an innovation-driven economy, they observe lower levels of perceived corruption. However, the relationship between actual incidence of corruption and economic development is highly sensitive to covariates in governance, culture, and social development, consistent with interdependence among these factors. The factor that consistently explains perceived and actual corruption is a country’s governance systems, measured by institutions or press freedom.
An Export Portfolio Assessment of Regional Free Trade Agreements: A Mercosur and Pacific Alliance Perspective  [PDF]
Raul de Gouvea, Dimitri Kapelianis, Manuel-Julian R. Montoya, Gautam Vora
Modern Economy (ME) , 2014, DOI: 10.4236/me.2014.55058
Abstract:

We use the portfolio theory to assess the export performance of two important regional free trade agreements (RFTAs), namely, Mercosur and the Pacific Alliance, and their constituent countries. The results indicate that the export portfolio of the Pacific Alliance dominates that of Mercosur from a risk-return perspective. When we compare these two regional FTAs’ portfolios to an Asian export portfolio, the performance of the export portfolios of the Latin American RFTAs is dominated by that of the Asian export portfolio. In a larger context, the continual attention paid to these Latin American RFTAs is a reflection of the slow and uneven development of global trade negotiation.

GeV Seesaw, Accidentally Small Neutrino Masses, and Higgs Decays to Neutrinos
de Gouvea, Andre
High Energy Physics - Phenomenology , 2007,
Abstract: If the Standard Model particle content is extended by gauge singlet fermions (right-handed neutrinos), active neutrinos generically acquire (Majorana) masses, in agreement with our current understanding of the lepton sector. If the right-handed neutrino masses are of the same order as the electroweak symmetry breaking scale, it is usually expected that these will not mediate any experimentally observable effects. Here, I explore the fact that this is not necessarily the case. If neutrino masses are "accidentally small", active-sterile mixing angles can, according to current experimental bounds, be as large as several percent. If this is the case, I argue that the dominant decay mode of light (M_H less than 130 GeV) Higgs bosons could be into an active and a sterile neutrino. The sterile neutrino decays promptly into a charge lepton and an on- or off-shell W-boson, so that the dominant Higgs boson decay mode is H to leptons + jets + missing transverse energy.
The Body Onstage: orality and ethnoscenology
Alexandra Gouvea Dumas
Revista Brasileira de Estudos da Presen?a , 2012,
Abstract: The analysis of the processes of human knowledge transmission, in general, reveal two ways: orality and writing. Traditionally, the scenic phenomenon is observed and analyzed as a variation of orality. With the creation and assertion of disciplines whose objects of study are spectacular practices, like Ethnoscenology, other perspectives have been developed considering, in fact, the particularities and differences between the scenic event and other systems of human expression. Therefore, this paper proposes to analyze scenic aspects regarding the body and its sensory and communication relationships, highlighting them as a different structural format, such as writing and orality.
Novos Caminhos para o Ensino e Aprendizagem de Matemática Financeira: constru o e aplica o de WebQuest
Simone Aparecida Silva Gouvea
Bolema: Boletim de Educa??o Matemática , 2008,
Abstract:
Um Estudo de Fractais Geométricos através de Caleidoscópios e Softwares de Geometria Dinamica
Flavio Roberto Gouvea
Bolema: Boletim de Educa??o Matemática , 2008,
Abstract:
The Oscillation Probability of GeV Solar Neutrinos of All Active Species
Andre de Gouvea
Physics , 2000, DOI: 10.1103/PhysRevD.63.093003
Abstract: In this paper, I address the oscillation probability of O(GeV) neutrinos of all active flavours produced inside the Sun and detected at the Earth. Flavours other than electron-type neutrinos may be produced, for example, by the annihilation of WIMPs which may be trapped inside the Sun. In the GeV energy regime, matter effects are important both for the ``1-3'' system and the ``1-2'' system, and for different neutrino mass hierarchies. A numerical scan of the multidimensional three-flavour parameter space is performed, ``inspired'' by the current experimental situation. One important result is that, in the three-flavour oscillation case, P{alpha,beta} is different from P{beta,alpha} for a significant portion of the parameter space, even if there is no CP-violating phase in the MNS matrix. Furthermore, P{mu,mu} has a significantly different behaviour from P{tau,tau}, which may affect expectations for the number of events detected at large neutrino telescopes.
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