Dear Tutor, please choose the right answers only without explanation. Thank you.

a)

According to the findings by Weiss & Willis (1997), unexpected increases in the husband's earnings capacity or the wife's earn- ings capacity tend to stabilize marriages.In their study of marriages in rural India, Rosenzweig & Stark (1989) find that spatial income differences drive marriage and migration patterns in rural India.Consider Bjorklund and Sundstrom (2006): Using the within family estimator, the analysis conducted in this paper considers single-child and two-child families that divorce