Postponing maternity in Ireland
利用1994年爱尔兰生活调查的回顾性生命史数据，建立风险模型检验职业规划与生育时间的关系，发现职业规划影响生育时机，收入效应影响首次生育时间。
As in many other developed countries, Ireland has experienced a postponement of maternity. Whilst a number of authors have commented on this trend, suggesting greater female participation in the workforce results in delayed maternity, to date little research has tested this proposition. We develop a model to consider the main trends related to the phenomenon of maternity postponement, considering changes in first and later births separately. Using retrospective life history data developed from the 1994 Living In Ireland Survey we estimate a hazard model to empirically test the relationship between career planning and the timing of first and subsequent births. We incorporate a declining marginal return to experience and thereby provide a human capital/career planning explanation for maternity postponement. The results of our analysis demonstrate that career planning has an impact on the timing of maternity. The findings also establish an income effect that influences the timing of first births. Copyright The Author 2010. Published by Oxford University Press on behalf of the Cambridge Political Economy Society. All rights reserved., Oxford University Press.