Erik Lindqvist

Learn More
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. 1 Appendix B: Sample selection This Appendix analyzes several issues related to sample selection. Table B1 gives the summary statistics for the additional variables used in(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)
This paper models the interaction between individuals’identity choices and redistribution. Both redistributive polices and identity choices are endogenous, and there might be multiple equilibria. The model is applied to ethnicity and social class. In an equilibrium with high taxes, the poor identify as poor and favor high taxes. In an equilibrium with low(More)
We study the evolution of the global arms trade network using a detailed dataset on all international transfers of major conventional weapons over the period 1950-2007. First, we provide a careful description of the characteristics of global arms trade using tools from social network analysis. Second, we relate our findings to political regimes by studying(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)
We study the intergenerational transmission of cognitive and non-cognitive abilities between fathers and sons using population-wide enlistment data. Measurement error bias in fathers‘ ability measures is corrected for using two sets of instruments. Results suggest that previous estimates of intergenerational ability correlations are biased downwards; once(More)
We study the effect of political polarization on public spending using the dispersion of self-reported political preferences as our measure of polarization. Political polarization is strongly associated with smaller government in democratic countries, but there is no relationship between polarization and the size of government in undemocratic countries. The(More)
The implementation of a copyright protection reform in Sweden in April 2009 suddenly increased the risk of being caught and punished for illegal file sharing. This paper investigates the impact of the reform on illegal file sharing and music sales using a differencein-differences approach with Norway and Finland as control groups. We find that the reform(More)