Estimating Time Trends in Life Expectancy in Sub-Saharan Africa

IF 0.4 Q4 DEMOGRAPHY
G. Caporale, L. Gil‐Alana
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引用次数: 3

Abstract

This paper analyzes time trends in life expectancy at birth in sub-Saharan Africa, allowing the errors to be I(d), where d is a fractional value, instead of making the usual, more restrictive assumptions of I(0) or I(1) errors. The results indicate that the order of integration of the series varies across countries: some are I(d) with d significantly below 1 (which implies mean-reverting behavior), some are I(1) and the remainder exhibit orders of integration significantly above 1. The time trend coefficients are in some cases substantially different from those estimated under the assumptions of I(0) or I(1) errors. There is evidence of a positive trend in most countries, the highest coefficients being those for Gambia, Ethiopia, Mali, Liberia and Cape Verde.
估计撒哈拉以南非洲地区预期寿命的时间趋势
本文分析了撒哈拉以南非洲地区出生时预期寿命的时间趋势,允许误差为I(d),其中d是一个分数值,而不是做出通常的更严格的I(0)或I(1)误差假设。结果表明,该系列的整合顺序因国家而异:有些是I(d), d显著低于1(这意味着均值回归行为),有些是I(1),其余的显示整合顺序显著高于1。在某些情况下,时间趋势系数与在I(0)或I(1)误差假设下估计的时间趋势系数有很大不同。有证据表明大多数国家都有积极的趋势,冈比亚、埃塞俄比亚、马里、利比里亚和佛得角的系数最高。
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来源期刊
Population Review
Population Review DEMOGRAPHY-
CiteScore
1.30
自引率
14.30%
发文量
3
期刊介绍: Population Review publishes scholarly research that covers a broad range of social science disciplines, including demography, sociology, social anthropology, socioenvironmental science, communication, and political science. The journal emphasizes empirical research and strives to advance knowledge on the interrelationships between demography and sociology. The editor welcomes submissions that combine theory with solid empirical research. Articles that are of general interest to population specialists are also desired. International in scope, the journal’s focus is not limited by geography. Submissions are encouraged from scholars in both the developing and developed world. Population Review publishes original articles and book reviews. Content is published online immediately after acceptance.
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