This study examines the relationship between state restrictive abortion laws and the incidence of unintended pregnancy. Using 2006 data about pregnancy intentions, the empirical results found that no Medicaid funding, mandatory counseling laws, two-visit laws, and antiabortion attitudes have no significant effect on the unintended pregnancy rate, unwanted pregnancy rate, unintended pregnancy ratio, or the unwanted pregnancy ratio. Parental involvement laws have a significantly negative effect on the unintended and unwanted pregnancy rates and ratios. This latter result suggests that parental involvement laws alter teen minors' risky sexual activity and that behavioral modification has a cumulative effect on the pregnancy avoidance behavior of adult women of childbearing age. The empirical results remain robust even after controlling for regional effects, outliers, and the two different types of parental involvement laws.
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