Children may be viewed as public goods whereby both parents receive equal genetic benefits yet one parent often invests more heavily than the other. We introduce a microeconomic framework for understanding household investment decisions to address questions concerning conflicts of interest over types and amount of work effort among married men and women. Although gains and costs of marriage may...

We present international evidence on the marriage market implications of cohort size growth, and set out a theoretical model of how marriage markets adjust to imbalances. Since men marry younger women, secular growth in cohort size in the second phase of the demographic transition worsens the position of women. This e¤ect has been substantial in many Asian countries earlier, and continues to be...

In this paper we formulate an age-structured two-sex population model which takes into account a monogamous marriage rule and the duration of marriage. We are mainly concerned with the existence of exponential solutions with a persistent age distribution. First we provide a semigroup method to deal with the time-evolution problem of our two-sex population model. Next, by constructing a fixed po...

background: marriage causes family and from a point of view it is a social symbol   which is reflection of whole society. one of the forms of marriage is family marriage. these kind of marriage are important in human heredity (heritage), according to social, cultural and economic conditions, this pattern of marriage is different between the countries and even inside a specific country. as famil...