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|Title:||Infant mortality rates: Time trends and fractional integration|
|Keywords:||Infant mortality rates;Time trends;Fractional integration|
|Citation:||Economics and Finance Working Paper, Brunel University, 11-06|
|Abstract:||This paper examines the time trends in infant mortality rates in a number of countries in the 20th century. Rather than imposing that the error term is a stationary I(0) process, we allow for the possibility of fractional integration and hence for a much greater degree of flexibility in the dynamic specification of the series. Indeed, once the linear trend is removed, all series appear to be I(d) with d > 0 rather than I(0), implying longrange dependence. As expected, the time trend coefficients are significantly negative, although of a different magnitude from to those obtained assuming I(0) disturbances.|
|Appears in Collections:||Economics and Finance|
Dept of Economics and Finance Research Papers
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