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老龄化、城镇化与碳排放——基于1995-2012年中国省级动态面板的研究
老龄化 城镇化 碳排放 动态面板
2016/1/4
基于1995-2012年的分省动态面板数据,通过改造KAYA恒等式,运用系统广义矩估计(SYS-GMM)和Driscoll-Kraay协方差矩阵估计等计量方法对老龄化、城镇化与碳排放之间的关系进行了考察。研究表明,老龄化和城镇化均与碳排放存在倒"U"型关系:在老龄化初期由于存量人口红利的存在碳排放会保持上升趋势,但是长期来看人口寿命延长导致的老龄化对碳排放会产生明显的抑制作用;城镇化起步和加速阶段...
Trends in Adolescent Males' Abortion Attitudes, 1988-1995: Differences by Race and Ethnicity
Adolescent Male Abortion Attitudes Ethnicity
2009/9/15
Context: Studying how adolescent males view abortion and how their attitudes toward abortion have changed over time can improve our understanding of the sexual, contraceptive and abortion behavior of ...
Abortion Patients in 1994-1995：Characteristics and Contraceptive Use
Abortion Patients never-married women Contraceptive Use low education
2009/9/14
Results of a 1994-1995 national survey of 9,985 abortion patients reveal that women who live with a partner outside marriage or have no religious identification are 3.5-4.0 times as likely as women in...
Understanding U.S. Fertility：Continuity and Change in the NationalSurvey of Family Growth, 1988-1995
U.S. Fertility Continuity Family Growth
2009/9/14
About 50 studies based on the 1988 National Survey of Family Growth (NSFG) and a telephone reinterview conducted with the same women two years later provide continuing information about the fertility ...