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Helder Miguel Correia Virtuoso Sebastiao
(Helder Miguel Correia Virtuoso Sebastião)

Personal Details

First Name:Helder
Middle Name:Miguel Correia Virtuoso
Last Name:Sebastiao
Suffix:
RePEc Short-ID:pse235

Affiliation

Centre for Business and Economics Research (CeBER)
Faculdade de Economia
Universidade do Coimbra

Coimbra, Portugal
http://www.uc.pt/go/ceber

+351239790599
+ 351 239 40 35 11
Av. Dias da Silva 165; 3004-512 Coimbra
RePEc:edi:cebucpt (more details at EDIRC)

Research output

as
Jump to: Working papers Articles

Working papers

  1. Nuno Miguel Barateiro Gonçalves Silva & Hélder Miguel Correia Virtuoso Sebastião & Diogo Henriques, 2020. "IPO patterns in Euronext after the global financial crisis of 2007-2008," CeBER Working Papers 2020-15, Centre for Business and Economics Research (CeBER), University of Coimbra.
  2. Hélder Sebastião & Pedro Godinho, 2020. "The Relationship Between USD/EUR Official Exchange Rates And Implied Exchange Rates From The Bitcoin Market," CeBER Working Papers 2020-02, Centre for Business and Economics Research (CeBER), University of Coimbra.
  3. Ana Sofia Monteiro & Hélder Sebastião & Nuno Silva, 2018. "Predictability of stock returns and dividend growth using dividend yields: An international approach," CeBER Working Papers 2018-10, Centre for Business and Economics Research (CeBER), University of Coimbra.
  4. Pedro Bação & António Portugal Duarte & Hélder Sebastião & Srdjan Redzepagic, 2018. "Information Transmission Between Cryptocurrencies: Does Bitcoin Rule the Cryptocurrency World?," CeBER Working Papers 2018-06, Centre for Business and Economics Research (CeBER), University of Coimbra.
  5. Márcio Ferreira & Hélder Sebastião, 2018. "The Iberian electricity market:Price dynamics and risk premium in an illiquid market," CeBER Working Papers 2018-02, Centre for Business and Economics Research (CeBER), University of Coimbra.
  6. Helder Sebastião & António Portugal Duarte & Gabriel Guerreiro, 2017. "Where is the information on USD/Bitcoins hourly price movements?," CeBER Working Papers 2017-05, Centre for Business and Economics Research (CeBER), University of Coimbra.
  7. Rui Pedro Brito & Hélder Sebastião & Pedro Godinho, 2017. "On the gains of using high frequency data and higher moments in Portfolio Selection," CeBER Working Papers 2017-02, Centre for Business and Economics Research (CeBER), University of Coimbra.
  8. Rui Pedro Brito & Hélder Sebastião & Pedro Godinho, 2016. "Portfolio Choice with High Frequency Data: CRRA Preferences and the Liquidity Effect," GEMF Working Papers 2016-13, GEMF, Faculty of Economics, University of Coimbra.
  9. Rui Pedro Brito & Hélder Sebastião & Pedro Godinho, 2015. "Efficient Skewness/Semivariance Portfolios," GEMF Working Papers 2015-05, GEMF, Faculty of Economics, University of Coimbra.
  10. Rui Pedro Brito & Hélder Sebastião & Pedro Godinho, 2015. "Portfolio Management With Higher Moments: The Cardinality Impact," GEMF Working Papers 2015-15, GEMF, Faculty of Economics, University of Coimbra.
  11. Helder Sebastião, 2012. "The Relative Contemporaneous Information Response. A New Cointegration-Based Measure of Price Discovery," GEMF Working Papers 2012-04, GEMF, Faculty of Economics, University of Coimbra.
  12. Ana Rita Gonzaga & Helder Sebastião, 2011. "As Ações Portuguesas Seguem um Random Walk? Implicações para a Eficiência de Mercado e para a Definição de Estratégias de Transação," GEMF Working Papers 2012-02, GEMF, Faculty of Economics, University of Coimbra.
  13. Helder Sebastião, 2008. "The partial adjustment factors of FTSE 100 stock index and stock index futures: The informational impact of electronic trading systems," GEMF Working Papers 2008-07, GEMF, Faculty of Economics, University of Coimbra.

Articles

  1. Sebastião, Helder & Godinho, Pedro, 2020. "Bitcoin futures: An effective tool for hedging cryptocurrencies," Finance Research Letters, Elsevier, vol. 33(C).
  2. Bação Pedro & Duarte António Portugal & Sebastião Helder & Redzepagic Srdjan, 2018. "Information Transmission Between Cryptocurrencies: Does Bitcoin Rule the Cryptocurrency World?," Scientific Annals of Economics and Business, Sciendo, vol. 65(2), pages 97-117, June.
  3. Brito Rui Pedro & Sebastião Helder & Godinho Pedro, 2018. "On the Gains of Using High Frequency Data in Portfolio Selection," Scientific Annals of Economics and Business, Sciendo, vol. 65(4), pages 365-383, December.
  4. R. P. Brito & H. Sebastião & P. Godinho, 2017. "Portfolio choice with high frequency data: CRRA preferences and the liquidity effect," Portuguese Economic Journal, Springer;Instituto Superior de Economia e Gestao, vol. 16(2), pages 65-86, August.
  5. Helder Sebastião & António Portugal Duarte & Gabriel Guerreiro, 2017. "Where is the Information on USD/Bitcoin Hourly Prices?," Notas Económicas, Faculty of Economics, University of Coimbra, issue 45, pages 1-19, December.
  6. Rui Pedro Brito & Hélder Sebastião & Pedro Godinho, 2016. "Efficient skewness/semivariance portfolios," Journal of Asset Management, Palgrave Macmillan, vol. 17(5), pages 331-346, September.
  7. Helder Sebastiao, 2010. "The informational impact of electronic trading systems on the FTSE 100 stock index and its futures contracts," The European Journal of Finance, Taylor & Francis Journals, vol. 16(7), pages 611-640.

Citations

Many of the citations below have been collected in an experimental project, CitEc, where a more detailed citation analysis can be found. These are citations from works listed in RePEc that could be analyzed mechanically. So far, only a minority of all works could be analyzed. See under "Corrections" how you can help improve the citation analysis.

Working papers

  1. Pedro Bação & António Portugal Duarte & Hélder Sebastião & Srdjan Redzepagic, 2018. "Information Transmission Between Cryptocurrencies: Does Bitcoin Rule the Cryptocurrency World?," CeBER Working Papers 2018-06, Centre for Business and Economics Research (CeBER), University of Coimbra.

    Cited by:

    1. Andrada-Félix, Julián & Fernandez-Perez, Adrian & Sosvilla-Rivero, Simón, 2020. "Distant or close cousins: Connectedness between cryptocurrencies and traditional currencies volatilities," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 67(C).
    2. Omane-Adjepong, Maurice & Alagidede, Imhotep Paul, 2019. "Multiresolution analysis and spillovers of major cryptocurrency markets," Research in International Business and Finance, Elsevier, vol. 49(C), pages 191-206.
    3. Guglielmo Maria Caporale & Woo-Young Kang & Fabio Spagnolo & Nicola Spagnolo, 2020. "Cyber Attacks, Spillovers and Contagion in the Cryptocurrency Markets," CESifo Working Paper Series 8324, CESifo.

  2. Márcio Ferreira & Hélder Sebastião, 2018. "The Iberian electricity market:Price dynamics and risk premium in an illiquid market," CeBER Working Papers 2018-02, Centre for Business and Economics Research (CeBER), University of Coimbra.

    Cited by:

    1. George P. Papaioannou & Christos Dikaiakos & Christos Kaskouras & George Evangelidis & Fotios Georgakis, 2020. "Granger Causality Network Methods for Analyzing Cross-Border Electricity Trading between Greece, Italy, and Bulgaria," Energies, MDPI, Open Access Journal, vol. 13(4), pages 1-26, February.

  3. Rui Pedro Brito & Hélder Sebastião & Pedro Godinho, 2015. "Efficient Skewness/Semivariance Portfolios," GEMF Working Papers 2015-05, GEMF, Faculty of Economics, University of Coimbra.

    Cited by:

    1. R. P. Brito & H. Sebastião & P. Godinho, 2017. "Portfolio choice with high frequency data: CRRA preferences and the liquidity effect," Portuguese Economic Journal, Springer;Instituto Superior de Economia e Gestao, vol. 16(2), pages 65-86, August.
    2. Ruili Sun & Tiefeng Ma & Shuangzhe Liu & Milind Sathye, 2019. "Improved Covariance Matrix Estimation for Portfolio Risk Measurement: A Review," Journal of Risk and Financial Management, MDPI, Open Access Journal, vol. 12(1), pages 1-34, March.

  4. Helder Sebastião, 2012. "The Relative Contemporaneous Information Response. A New Cointegration-Based Measure of Price Discovery," GEMF Working Papers 2012-04, GEMF, Faculty of Economics, University of Coimbra.

    Cited by:

    1. Karin Niehoff, 2016. "Price Discovery in Voting and Non-Voting Stocks," Schmalenbach Business Review, Springer;Schmalenbach-Gesellschaft, vol. 17(3), pages 285-307, December.

Articles

  1. Bação Pedro & Duarte António Portugal & Sebastião Helder & Redzepagic Srdjan, 2018. "Information Transmission Between Cryptocurrencies: Does Bitcoin Rule the Cryptocurrency World?," Scientific Annals of Economics and Business, Sciendo, vol. 65(2), pages 97-117, June.
    See citations under working paper version above.
  2. Helder Sebastião & António Portugal Duarte & Gabriel Guerreiro, 2017. "Where is the Information on USD/Bitcoin Hourly Prices?," Notas Económicas, Faculty of Economics, University of Coimbra, issue 45, pages 1-19, December.

    Cited by:

    1. Pedro Bação & António Portugal Duarte & Hélder Sebastião & Srdjan Redzepagic, 2018. "Information Transmission Between Cryptocurrencies: Does Bitcoin Rule the Cryptocurrency World?," CeBER Working Papers 2018-06, Centre for Business and Economics Research (CeBER), University of Coimbra.

  3. Rui Pedro Brito & Hélder Sebastião & Pedro Godinho, 2016. "Efficient skewness/semivariance portfolios," Journal of Asset Management, Palgrave Macmillan, vol. 17(5), pages 331-346, September.
    See citations under working paper version above.

More information

Research fields, statistics, top rankings, if available.

Statistics

Access and download statistics for all items

Co-authorship network on CollEc

Featured entries

This author is featured on the following reading lists, publication compilations, Wikipedia, or ReplicationWiki entries:
  1. Portuguese Economists

NEP Fields

NEP is an announcement service for new working papers, with a weekly report in each of many fields. This author has had 11 papers announced in NEP. These are the fields, ordered by number of announcements, along with their dates. If the author is listed in the directory of specialists for this field, a link is also provided.
  1. NEP-MST: Market Microstructure (4) 2008-10-21 2012-03-28 2016-09-11 2017-02-26
  2. NEP-PAY: Payment Systems & Financial Technology (3) 2017-05-14 2018-07-23 2020-01-27
  3. NEP-UPT: Utility Models & Prospect Theory (3) 2015-08-13 2016-09-11 2017-02-26
  4. NEP-CFN: Corporate Finance (2) 2018-11-26 2020-08-17
  5. NEP-ENE: Energy Economics (1) 2018-07-23
  6. NEP-ETS: Econometric Time Series (1) 2020-01-27
  7. NEP-FMK: Financial Markets (1) 2018-11-26
  8. NEP-MON: Monetary Economics (1) 2018-07-23
  9. NEP-REG: Regulation (1) 2018-07-23

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