University tuition fees for undergraduates were abolished in Ireland in 1996. This paper examines the effect of this reform on the socioeconomic gradient (SES) to determine whether the reform was successful in achieving its objective of promoting educational equality. It finds that the reform...

This paper uses a cross-country representative sample of Europeans over the age of 50 to analyse whether individuals' height is associated with higher or lower levels of well-being. Two outcomes are used: a measure of depression symptoms reported by individuals and a categorical measure of life...

I show a simple back-of-the-envelope method for calculating marginal effects in binary choice and count data models. The approach suggested here focuses attention on marginal effects at different points in the distribution of the dependent variable rather than representative points in the joint...

This paper uses a new large population survey from twelve European countries to measure the association between handedness and depression. It is found that that depressive symptoms are significantly higher amongst left-handed men. While 19% of right handed men report experiencing depressive...

Objective: To estimate the causal effect of breastfeeding on children's cognitive skills as measured at ages 3, 5, 7 and 11. Design: An instrumental variable (IV) strategy which provides a correction method for dealing with selection bias. Standard linear regression models are compared to...

This paper estimates the relationship between handedness and social adjustment. In addition to binary measures of hand preference, we also use a continuous measure of hand skill. Outcomes at ages 7, 11 and 16 are studied. Using a semi-parametric estimator it is shown that non-righthandedness (as...

There is a well established socioeconomic gradient in educational attainment, despite much effort in recent decades to address this inequality. This study evaluates a university access program that provides financial, academic and social support to low socioeconomic status (SES) students using a...

This paper estimates the marginal effect of class size on educational attainment of high school students. We control for the potential endogeneity of class size in two ways using a conventional instrumental variable approach, based on changes in cohort size, and an alternative method where...

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...

This paper addresses the question of whether higher levels of education contribute to greater tolerance of homosexuals. Using survey data for Ireland and exploiting a major reform to education, the abolition of fees for secondary schools in 1968, it is shown that increases in education causes...