"Parents invest both their material resources and their time into raising their children. Time investment in children is thought to be critical to the development of "quality" children who will become productive adults. This paper has three goals related to the examination of parental time...

While recent research finds strong evidence that birth order affects children's outcomes such as education and earnings, the evidence on the effects of birth order on IQ is decidedly mixed. This paper uses a large dataset on the population of Norway that allows us to precisely measure birth...