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Public policies: will policy be ineffective if welfare is a random-walk

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  • Abereniye Atemie-Obuoforibo

Abstract

This study contradicts the view that policy cannot be effective if the welfare variable is a random-walk. Also, the study disagrees with the methodology employed by some proponents of this view, and goes on to show that the conclusion of policy ineffectiveness was only due to a wrong inference procedure. Furthermore, it points out that the notion of policy effectiveness suggests the examination of the relationship between policy and welfare; hence, what to look for is not a trend in the individual time series, but a common trend which relates the policy instrument and the welfare-variable in the policy environment under consideration.

Suggested Citation

  • Abereniye Atemie-Obuoforibo, 2001. "Public policies: will policy be ineffective if welfare is a random-walk," Applied Economics, Taylor & Francis Journals, vol. 33(11), pages 1443-1453.
  • Handle: RePEc:taf:applec:v:33:y:2001:i:11:p:1443-1453 DOI: 10.1080/00036840010009874
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    References listed on IDEAS

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    1. Engle, Robert & Granger, Clive, 2015. "Co-integration and error correction: Representation, estimation, and testing," Applied Econometrics, Publishing House "SINERGIA PRESS", vol. 39(3), pages 106-135.
    2. Hylleberg, S. & Engle, R. F. & Granger, C. W. J. & Yoo, B. S., 1990. "Seasonal integration and cointegration," Journal of Econometrics, Elsevier, vol. 44(1-2), pages 215-238.
    3. Perron, Pierre, 1989. "The Great Crash, the Oil Price Shock, and the Unit Root Hypothesis," Econometrica, Econometric Society, vol. 57(6), pages 1361-1401, November.
    4. Ghysels, Eric & Lee, Hahn S. & Noh, Jaesum, 1994. "Testing for unit roots in seasonal time series : Some theoretical extensions and a Monte Carlo investigation," Journal of Econometrics, Elsevier, vol. 62(2), pages 415-442, June.
    5. Engle, R. F. & Granger, C. W. J. & Hylleberg, S. & Lee, H. S., 1993. "The Japanese consumption function," Journal of Econometrics, Elsevier, vol. 55(1-2), pages 275-298.
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