Kanazawa (2007) offers an explanation for the variation across countries of average intelligence. It is based on the idea human intelligence is a domain specific adaptation and that both temperature and the distance from some putative point of origin are proxies for the degree of novelty that...

In a recent paper, Kanazawa and Kovar (2004) assert that given certain empirical regularities about assortative mating and the heritability of intelligence and beauty, that it logically follows that more intelligent people are more beautiful. It is argued here that this theoremʺ is false and...

This note re-examines a finding by Crow et al. (1998) that equal skill of right and left hands is associated with deficits in cognitive ability. This is consistent with the idea that failure to develop dominance of one hemisphere is associated with various pathologies such as learning...

In this paper we examine whether - conditional on other child endowments and family inputs - bilingual children achieve different language, emotional, and pro-social developmental outcomes. Our data, which allow us to analyze children's development in a dynamic framework, are extracted from the...

We study the role of non-cognitive skills in academic performance of students who are the first in their family to attend university. We collected survey data on an incoming student cohort from a leading Australian university and linked the survey with students' administrative entry and...

In this paper we examine whether - conditional on other family inputs - bilingual children achieve different outcomes in language and emotional development. Our data come from the UK Millennium Cohort Study (MCS) which allows us to analyze children's language and emotional development in depth....

This paper provides the first estimates of the effects of handedness on hourly earnings. Augmenting a conventional earnings equation with an indicator of left handedness shows there is a well determined positive effect on male earnings with non-manual workers enjoying a slightly larger premium....