Objective Better measurement of the health and cognitive benefits of breastfeeding by using sibling comparisons to reduce sample selection bias. Data We use data on the breastfeeding history, physical and emotional health, academic performance, cognitive ability, and demographic characteristics...

As the developed world has experienced a shift away from the traditional two-biological parent family, scholars have sought to understand how children are faring in non-traditional homes. Debate has arisen over assertions that children from non-traditional families do less well in school....

There are two competing views regarding the presence of social fathers on childrens’ cognitive ability: either the social father provides more financial need to the children or the mother with new partners may shift the focus away from the children. Previous research focused more on such...

This study explored how social pressure related to parental preference for the sex of their children affects fertility. Pre-war and post-war generations were compared using individual level data previously collected in Japan in 2002. In the pre-war generation, if the first child was a daughter,...

Across the United States, two phenomena have emerged: high rates of multi-partnered fertility (having children by more than one partner) and high rates of male involvement with the criminal justice system. This paper is a first step in an exploration of the possible connection between these two...

This study explored how social pressure related to parental preference for the sex of their children affects fertility. Pre-war and post-war generations were compared using individual level data previously collected in Japan in 2002. In the pre-war generation, if the first child was a daughter,...

This study explored how social pressure related to parental preference for the sex of their children affects fertility. Pre-war and post-war generations were compared using individual level data previously collected in Japan in 2002. In the pre-war generation, if the first child was a daughter,...

We combine the date-of-observation found in Murdock’s Ethnographic Atlas and a newly-constructed dataset on the date-of-colonization at the ethnic-group level to study the effects of the duration of colonial rule on a variety of political, economic, and social characteristics of ethnic groups...