Finn Christensen

Department of Economics

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Working Papers

 

The Pill and Partnerships: The Impact of the Birth Control Pill on Cohabitation

Current version: October 2008

The introduction and dispersion of the birth control pill initiated a fertility revolution in the US during the 1960s and early 1970s.  This paper investigates the impact of that revolution on cohabitation behavior.  A theoretical model generates predictions that are tested using two separate data sources.  The causal effect of the pill on cohabitation is estimated by exploiting plausibly exogenous variation in state laws granting access to the pill to unmarried women under 21.  The evidence shows that the pill was instrumental in making cohabitation a more common part of the mate selection process, but had little effect in the short run in making cohabitation a substitute for marriage.

Learning by Dating, Commitment, and Assortative Mating

The supplementary material can be found here

Current version: October 2008

This paper shows how the experiential learning aspect of mate selection affects sorting outcomes when types are complementary.  The degree of marital assortative mating, where likes marry likes, decreases as more opportunities emerge to learn about relationship-specific quality prior to committing to marriage.  The degree of assortative mating is also decreasing in the commitment level of relationship forms.  Finally, it is shown that the emergence of relationship forms like cohabitation is consistent with an increase in the net benefits to dating.  The results are applied to explain some observations about cohabitation, interracial relationships, and the relation between them.

 

Keywords: learning , commitment, sorting, mate selection, cohabitation, interracial marriage
JEL Classifcations: D83, J11, J12

 

Global Social Interactions with Sequential Binary Decisions: The Case of Marriage, Divorce, and Stigma

Current version: Aug 2008

This paper studies global social interactions in a stylized model of marriage and divorce with complementarities across agents.  The key point of departure from traditional models of social interactions is that actions are interrelated and sequential.  The presence of strategic complementarities is no longer sufficient to generate a social multiplier that exceeds one in this environment.  Self-fulfilling conformity, whereby a greater desire to conform at the individual level leads to greater homogeneity of choices in the aggregate, is not retained either.  However, uniqueness under moderate social influence is preserved.  As a by-product of the uniqueness result, I also obtain a global asymptotic stability result for implicitly defined discrete dynamic systems.

 

Keywords: social interactions, social multiplier, self-fulfilling conformity, uniqueness under moderate social influence

Works in Progress

 

1.      The Social Multiplier and Multidimensional Choice Sets

2.      Desegregation and Interracial Marriage