TY - JOUR A1 - Rodriguez, Germán T1 - Demographic translation and tempo effects: An accelerated failure time perspective Y1 - 2006/02/14 JF - Demographic Research JO - Demographic Research SN - 1435-9871 SP - 85 EP - 110 DO - 10.4054/DemRes.2006.14.6 VL - 14 IS - 6 UR - https://www.demographic-research.org/volumes/vol14/6/ L1 - https://www.demographic-research.org/volumes/vol14/6/14-6.pdf L2 - https://www.demographic-research.org/volumes/vol14/6/14-6.pdf N2 - In this paper I review the concept of tempo effects in demography, focusing on the tempo adjustments proposed by Bongaarts and Feeney and drawing on the work of Ryder and Zeng and Land. I show that the period-shift model that underlies the proposed adjustments can be motivated from an accelerated failure time cohort perspective. I propose alternative measures of tempo under changing fertility and mortality that share a synthetic cohort interpretation with the adjusted measure of quantum. I stress similarities between the results for fertility and mortality, particularly in terms of mean age of childbearing and mean age at death, but also note some important distinctions. I conclude that the fertility adjustments can help distinguish quantum and tempo effects, but argue that in the case of mortality the Bongaarts-Feeney measure of tempo-adjusted life expectancy differs from conventional estimates because it reflects past mortality. ER -