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Identification of Seasonal Effects in Impulse Responses Using Score-Driven Multivariate Location Models

Author

Listed:
  • Blazsek Szabolcs
  • Licht Adrian

    (School of Business, Universidad Francisco Marroquín, Ciudad de Guatemala01010, Guatemala)

  • Escribano Alvaro

    (Department of Economics, Universidad Carlos III de Madrid, Getafe28903, Spain)

Abstract

For policy decisions, capturing seasonal effects in impulse responses are important for the correct specification of dynamic models that measure interaction effects for policy-relevant macroeconomic variables. In this paper, a new multivariate method is suggested, which uses the score-driven quasi-vector autoregressive (QVAR) model, to capture seasonal effects in impulse response functions (IRFs). The nonlinear QVAR-based method is compared with the existing linear VAR-based method. The following technical aspects of the new method are presented: (i) mathematical formulation of QVAR; (ii) first-order representation and infinite vector moving average, VMA (∞), representation of QVAR; (iii) IRF of QVAR; (iv) statistical inference of QVAR and conditions of consistency and asymptotic normality of the estimates. Control data are used for the period of 1987:Q1 to 2013:Q2, from the following policy-relevant macroeconomic variables: crude oil real price, United States (US) inflation rate, and US real gross domestic product (GDP). A graphical representation of seasonal effects among variables is provided, by using the IRF. According to the estimation results, annual seasonal effects are almost undetected by using the existing linear VAR tool, but those effects are detected by using the new QVAR tool.

Suggested Citation

  • Blazsek Szabolcs & Licht Adrian & Escribano Alvaro, 2021. "Identification of Seasonal Effects in Impulse Responses Using Score-Driven Multivariate Location Models," Journal of Econometric Methods, De Gruyter, vol. 10(1), pages 53-66, January.
    • Handle: RePEc:bpj:jecome:v:10:y:2021:i:1:p:53-66:n:3
    DOI: 10.1515/jem-2020-0003
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    References listed on IDEAS

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    More about this item

    Keywords

    macroeconomic time series data; score-driven time series models; quasi-vector autoregressive (QVAR) model; stochastic seasonality; C32;
    All these keywords.

    JEL classification:

    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models

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