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  1. Impact of regulatory changes on economic feasibility of distributed generation solar units
    Autor*in: Doyle, Gabriel Nasser Doile de; Rotella Junior, Paulo; Rocha, Luiz Célio Souza; Carneiro, Priscila França Gonzaga; Peruchi, Rogério Santana; Janda, Karel; Aquila, Giancarlo
    Erschienen: [2022]
    Verlag:  Institute of Economic Studies, Faculty of Social Sciences, Charles University in Prague, Prague

    The Brazilian National Electrical Agency (ANEEL) proposed in 2019 that the costs for accessing the electricity grid should be shared among all consumers. This would do away with cross-subsidies where normal consumers without installed solar... mehr

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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
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    DS 167
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    The Brazilian National Electrical Agency (ANEEL) proposed in 2019 that the costs for accessing the electricity grid should be shared among all consumers. This would do away with cross-subsidies where normal consumers without installed solar distributed generation (DG) units effectively cover the costs of access to the grid for consumers with DG units. We compared the viability of two scenarios, one before and the other after the proposed changes, to understand how this legislature will affect the viability of DG projects in Brazil. We did this by studying all 5 regions covering the whole Brazilian area by analyzing data on average solar radiation, demand, and energy prices. We conducted stochastic analysis by varying the investment costs, demand, and energy prices, for DG solar plants. Lastly, we conducted scholastic analysis for the national scenario by varying the Discount Rate (DR). We confirmed that there is a statically significant reduction in economic viability for DG solar units in Brazil if the proposed legislation were to be enacted, while the payback period and other financial indicators differ across regions. We confirmed that solar radiation is not the only decisive factor in determination of economic viability of DG solar production.

     
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/249912
    Schriftenreihe: IES working paper ; 2022, 2
    Schlagworte: Distributed Generation; Regulation Policy; Cross-subsidies; Micro-Power Plants; Economic Feasibility Analysis; Solar Photovoltaic Energy
    Umfang: 1 Online-Ressource (circa 26 Seiten), Illustrationen
  2. Robust portfolio optimization
    a stochastic evaluation of worst-case scenarios
    Autor*in: Rotella Junior, Paulo; Rocha, Luiz Célio Souza; Peruchi, Rogério Santana; Aquila, Giancarlo; Janda, Karel; Pamplona, Edson de Oliveira
    Erschienen: [2022]
    Verlag:  Institute of Economic Studies, Faculty of Social Sciences, Charles University in Prague, Prague

    This article presents a new approach for building robust portfolios based on stochastic efficiency analysis and periods of market downturn. The empirical analysis is done on assets traded on the Brazil Stock Exchange, B3 (Brasil, Bolsa, Balcão). We... mehr

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    DS 167
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    This article presents a new approach for building robust portfolios based on stochastic efficiency analysis and periods of market downturn. The empirical analysis is done on assets traded on the Brazil Stock Exchange, B3 (Brasil, Bolsa, Balcão). We start with information on the assets from periods of market downturn (worst-case) and we group them using hierarchical clustering. Then we do stochastic efficiency analysis on these data using the Chance Constrained Data Envelopment Analysis (CCDEA) model. Finally, we use a classical model of capital allocation to obtain the optimal share of each asset. Our model is able to accommodate investors who exhibit different risk behaviors (from conservatives to risky investors) by varying the level of probability in fulfilling the constraints (1-αi) of the CCDEA model. We show that the optimal portfolios constructed with the use of information from periods of market downturns perform better for the Sharpe ratio (SR) in the validation period. The combined use of these approaches, using also fundamentalist variables and information on market downturns, allows us to build robust portfolios, with higher cumulative returns in the validation period, and portfolios with lower beta values.

     
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/249913
    Schriftenreihe: IES working paper ; 2022, 3
    Schlagworte: Robust optimization; Stochastic evaluation; Chance Constrained DEA; Worst-case markets; Portfolios
    Umfang: 1 Online-Ressource (circa 36 Seiten), Illustrationen
  3. Impact of biofuels on U.S. retail gasoline prices
    a systematic literature review
    Autor*in: Janda, Karel; Michalikova, Eva; Rocha, Luiz Célio Souza; Rotella Junior, Paulo; Schererova, Barbora; Sila, Jan; Zilberman, David
    Erschienen: December 2022
    Verlag:  Institute of Economic Studies, Faculty of Social Sciences, Charles University in Prague, Prague

    This paper summarizes the main findings of the results in the literature on the role of ethanol in reducing retail gasoline prices in the United States. We provide a comprehensive overview of the key results and methodologies used to obtain them. The... mehr

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    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    DS 167
    Fernleihe:
    keine Fernleihe

     

    This paper summarizes the main findings of the results in the literature on the role of ethanol in reducing retail gasoline prices in the United States. We provide a comprehensive overview of the key results and methodologies used to obtain them. The paper documents the growing research interest in the assessment of the impacts of biofuels on agricultural commodity prices and overall price dynamics; presents the research trends, thematic map and the conceptual structure map; and identifes the main directions of the corn-ethanol focused biofuels literature through the analysis of predominant clusters. The last key contribution is the proposed research agenda.

     
    Export in Literaturverwaltung   RIS-Format
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/286327
    Schriftenreihe: IES working paper ; 2022, 31
    Schlagworte: biofuels; corn; ethanol; gasoline; U.S. retail prices; systematic literature review
    Umfang: 1 Online-Ressource (circa 32 Seiten), Illustrationen