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      <marc:subfield code="a">Dagum, Estela Bee.</marc:subfield>
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      <marc:subfield code="a">Optimal time horizon for ARIMA extrapolation </marc:subfield>
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      <marc:subfield code="a">" .... this paper examines the relationship between the forecast error at different time horizons and certain characteristics of the series namely, the amount of irregular variation present and, the pattern of the trend-cycle component"--Introduction, p. [1].</marc:subfield>
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