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Avanços na Atualização de Quadros INPUT-OUTPUT: Sua Relevância para a Análise de Economias Regionais

Author

Listed:
  • Xesús Pereira López

    (Quantitative Economie, University of Santiago de Compostela, Spain GAME – IDEGA, University of Santiago de Compostela, Spain)

  • André Carrascal Incera

    (GAME – IDEGA, University of Santiago de Compostela, Spain)

  • Melchor Fernández Fernández

    (GAME – IDEGA, University of Santiago de Compostela, Spain Foundations of Economic Analysis, University of Santiago de Compostela, Spain)

Abstract

É muito comum fazer análises aos impactos económicos utilizando as mais recentes matrizes input-output disponíveis. Contudo, o problema surge quando, com o decurso do tempo, os dados de referência ficam desatualizados. Não obstante, a análise económica tradicional considera-os uma base de dados quase fixa, levando a que surja uma lacuna entre os resultados estimados e os resultados reais, lacuna essa que deve ser minimizada tanto quanto possível. Portanto, a atualização das matrizes input-output é necessária, ajudando a alcançar melhores resultados em termos de fiabilidade dos dados. Este artigo apresenta uma técnica de ajustamento global que pode ser utilizada em cenários onde há informação parcial. Trata-se de um algoritmo que pode ser implementado quase em tempo real, representando uma melhoria considerável ao evitar atrasos comuns neste campo. Além disso, para o seu desempenho só é necessário saber (ou prever) o comportamento de determinadas magnitudes vetoriais. Para efeitos práticos, apresentamos alguns dados referentes à atualização do quadro simétrico (de fluxos domésticos) da Galiza para 2007, tendo como base a tabela obtida de forma direta para o ano de 2005. Também se realça o caráter convergente do procedimento proposto.

Suggested Citation

  • Xesús Pereira López & André Carrascal Incera & Melchor Fernández Fernández, 2013. "Avanços na Atualização de Quadros INPUT-OUTPUT: Sua Relevância para a Análise de Economias Regionais," RPER, Associação Portuguesa para o Desenvolvimento Regional, issue 33, pages 3-12, July.
    • Handle: RePEc:apd:rper00:y:2013:i:33:id:400
    DOI: 10.59072/rper.vi33.400
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    References listed on IDEAS

    as
    1. Michael Lahr & Louis de Mesnard, 2004. "Biproportional Techniques in Input-Output Analysis: Table Updating and Structural Analysis," Economic Systems Research, Taylor & Francis Journals, vol. 16(2), pages 115-134.
    2. Randall Jackson & Alan Murray, 2004. "Alternative Input-Output Matrix Updating Formulations," Economic Systems Research, Taylor & Francis Journals, vol. 16(2), pages 135-148.
    3. Umed Temurshoev & Colin Webb & Norihiko Yamano, 2011. "Projection Of Supply And Use Tables: Methods And Their Empirical Assessment," Economic Systems Research, Taylor & Francis Journals, vol. 23(1), pages 91-123.
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