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Persistence of suicides in G20 countries: SPSM approach to three generations of unit root tests

Author

Listed:
  • Izunna Anyikwa

    (Department of Economics, Nelson Mandela University)

  • Nicolene Haaman

    (Department of Economics, Nelson Mandela University)

  • Andrew Phiri

    (Department of Economics, Nelson Mandela University)

Abstract

Suicides represent an encompassing measure of psychological well-being, emotional stability as well as life satisfaction and have been recently identified by the World Health Organization (WHO) as a major global health concern. The G20 countries represent the powerhouse of global economic governance and hence possess the ability to influence the direction of global suicide rates. In applying the sequential panel selection method (SPSM) to three generations of unit root testing procedures, the study investigates whether G20 countries should be concerned with possible persistence within suicide rates. The results obtained from all three generation of tests provide rigid evidence of persistence within the suicides for most member states of the G20 countries hence supporting the current strategic agenda pushed by the WHO in reducing suicides to a target rate of 10 percent. In addition, we further propose that such strategies should emulate from within G20 countries and spread globally thereafter.

Suggested Citation

  • Izunna Anyikwa & Nicolene Haaman & Andrew Phiri, 2018. "Persistence of suicides in G20 countries: SPSM approach to three generations of unit root tests," Working Papers 1825, Department of Economics, Nelson Mandela University.
  • Handle: RePEc:mnd:wpaper:1825
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    References listed on IDEAS

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    Cited by:

    1. Xolisa Vayi & Andrew Phiri, 2018. "A sequential panel selection approach to cointegration analysis: An application to Wagner’s law for South Africa," Working Papers 1831, Department of Economics, Nelson Mandela University.
    2. Xolisa Vayi & Andrew Phiri, 2018. "A Sequential Panel Selection Approach to Cointegration Analysis: An Application to Wagner’s Law for South African Provincial Data," Economic Research Guardian, Weissberg Publishing, vol. 8(1), pages 25-39, June.

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    More about this item

    Keywords

    Suicides; sequential panel selection method (SPSM); nonlinear unit root tests; Fourier form unit root tests; G20 countries;
    All these keywords.

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • 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
    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
    • C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation, Validation, and Selection
    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior

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