Luis A. Gil-Alana () (Facultad de Ciencias Económicas y Empresariales, Universidad de Navarra) Rolando Pelaez () (University of Houston-Downtown, Houston, USA)
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This paper employs various empirical tests in order to measure the persistence of shocks to EPS for the S&P 500 index. Within the I(0)/I(1) paradigm the empirical evidence rejects the I(1) specification, supporting instead a trend-stationary representation. When fractional orders of integration are considered, the results indicate that the series is long memory (d > 0) and mean reverting (d < 1). The responses decay slowly to zero, albeit 50 quarters after an initial shock the responses remain significantly different from zero. Likewise, the variance ratio evidence suggests that the effect of a shock persists over time spans characteristic of the business cycle.
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Paper provided by School of Economics and Business Administration, University of Navarra in its series Faculty Working Papers with number
08/08.
References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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