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Recent Scientific Accomplishments During the past three years, Martin’s research interests have been in three areas. First, Martin studies diverging demographic characteristics across SES groups. Topics of published work include race and educational differences in marriage and fertility timing (Martin 2004), educational differences in marital dissolution rates (Martin 2004) and in attitudes toward divorce (Martin and Parashar 2006), and racial differences in childlessness (Martin 2005). Martin’s work on trends in childlessness includes collaborations with Ann Biddlecom at the Alan Guttmacher Institute (Biddlecom and Martin 2006). Martin is also collaborating with Tracy Roberts, a graduate student, in research on the relationship between women’s marriage, employment, and welfare recidivism (Roberts and Martin 2005). In his second research area, Martin studies issues of data quality and measurement in demographic research. Martin’s work in this area includes an analysis of standard demographic marriage models and their usefulness in predicting marriage behavior for U.S. women (Martin 2004.) Along with Larry Wu at New York University, Martin has been studying methods for estimating the effects of changing rates of events on the prevalence of demographic outcomes (Wu and Martin 2002). Martin also coauthored a paper with Ching-Yi Shieh at UNC-Fayetteville on the measurement and analysis of voting behavior and voter turnout (Martin and Shieh 2003). Martin is developing a third, new area of research interest in the measurement and analysis of technological diffusion in collaboration with John Robinson at the University of Maryland, College Park (Martin and Robinson 2007, Martin and Robinson 2004). This work has focused on the development of appropriate analytical techniques for the measurement of the income digital divide, along with divergence in Internet and computer use across other social variables. Martin is currently studying trends in childlessness among socially disadvantaged groups of women with an R03 grant from the National Institutes of Health. Previously, he was part of the Russell Sage Foundation Working Group on the Social Dimensions of Inequality, with a main focus on social inequality in marriage and fertility timing. In coming years, Martin will focus on two areas: 1) his ongoing research on childlessness and fertility timing, and 2) the analysis of adult education and its complex relationship to marriage and family patterns. Much of Martin's future work involves estimating hazard models with complex error structures and using these models for population projections. One of the aims in Martin’s R03 to develop statistical techniques that can more appropriately answer questions about the hazard rate of marriage (and childbearing) in the face of large cohort shifts in union formation and fertility choice. His new projection method uses a flexible specification of age-specific marriage trends and allows for unmeasured heterogeneity in the hazard rate of marriage. He is working to verify this method relative to more traditional methods using historical data. | ||||||||
Maryland Population Research Center
0124N Cole Student Activities Building (#162)
College Park, MD 20742
Phone: 301-405-6403
Fax: 301-405-5743