How are marriage and cohabitation similar? How are they different? As discussed in class and in the reading about cohabitation (Chapter 2 in Casper & Bianchi), cohabitation is heterogeneous. Describe the four types of cohabitation discussed in class and describe the characteristics of each type. What are the implications of the rise in cohabitation? Does the rise in cohabitation signify a threat to marriage? Why or why not?