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BACKGROUND Helle et al. (2000. Sons reduced maternal longevity in preindustrial humans. Science, 296, 1085) argued that giving birth to sons reduced maternal longevity in pre-industrial societies due to higher physiological costs of bearing sons and the elevated testosterone levels observed in mothers carrying male foetuses. AIM The present study examined(More)
Recent years have witnessed the emergence of a literature examining the effects of giving birth to sons on postmenopausal longevity in pre-industrial mothers. The original paper in this lineage used a sample (n=375) of Sami mothers from northern Finland and found that, relative to daughters, giving birth to sons substantially reduced maternal longevity. We(More)
This Web Appendix provides additional material to the paper "The Labor Market Returns to Cognitive and Noncognitive Ability" published in in American Economic Journal: Applied Economics. This Appendix analyzes several issues related to sample selection. Table B1 gives the summary statistics for the additional variables used in Appendix B-F. As already(More)
Does production technology adoption affect conflict? This paper studies this question with yearly historical data on weather, peasant revolts and the diffusion of sweet potatoes in China between 1470 and 1900. It shows that droughts increased peasant revolts by about 10% whereas the effect of floods was not significant. Moreover, the diffusion of a new(More)
A robust positive correlation between height and intelligence, as measured by IQ tests, has been established in the literature. This paper makes several contributions toward establishing the causes of this association. First, we extend the standard bivariate ACE model to account for assortative mating. The more general theoretical framework provides several(More)
In the lowest unique positive integer (LUPI) game, players pick positive integers and the player who chose the lowest unique number (not chosen by anyone else) wins a …xed prize. We derive theoretical equilibrium predictions, assuming fully rational players with Poisson-distributed uncertainty about the number of players. We also derive predictions for(More)
This paper documents that home owners are about twice as likely as renters to participate in the stock market in the USA and Sweden. Given this fact, the goal of the paper is to study the effect of home ownership and home purchases on stock market participation. The paper presents evidence that the effect of home ownership per se is only small or even(More)
Postprint This is the accepted version of a paper published in Journal of Economic Behavior and Organization. This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination. Access to the published version may require subscription. Abstract: The implementation of a copyright protection reform in Sweden in(More)
We estimate the causal effect of wealth on stock market participation using administrative data on Swedish lottery players. A $150,000 windfall gain increases stock ownership probability among pre-lottery non-participants by 12 percentage points, while pre-lottery stock holders are unaffected. The effect is immediate, seemingly permanent and heterogeneous(More)
We study the intergenerational transmission of cognitive and non-cognitive abilities between parents and sons using population-wide enlistment data. Conscripts are evaluated at the same age and with comparable methods across cohorts, and we correct for measurement error bias in fathers' ability measures by using their brothers' abilities as instruments. The(More)