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Pregnancy Medicaid Expansions And Fertility: Differentiating Between The Intensive And Extensive Margins, Lincoln H. Groves, Sarah Hamersma, Leonard M. Lopoo

Center for Policy Research

The theoretical and empirical links between public health insurance access and fertility in the United States remain unclear. Utilizing a demographic cell-based estimation approach with panel data (1987-1997), we revisit the large-scale Medicaid expansions to pregnant women during the 1980s to estimate the heterogeneous impacts of public health insurance access on childbirth. While the decision to become a parent (i.e., the extensive margin) appears to be unaffected by increased access to Medicaid, we find that increased access to public health insurance positively influenced the number of high parity births (i.e., the intensive margin) for select groups of women. In particular, …