This book is designed to explain the major personality theories and to stimulate critical
thinking about them.

Using Norwegian data, we examine effects of school starting age (SSA). Unlike much recent
literature, we can separate SSA from test age effects using scores from IQ tests taken outside …

Using data from the American Time Use Survey, I find that a first-born child receives 20-30
more minutes of quality time each day with his or her parent than a second-born child of the …

The importance of birth order has been the subject of debate for centuries, and has captured
the attention of the general public and researchers alike. Despite this interest, scholars have …

Classic criminological scholarship emphasizes sibling correlations in delinquency, criminal
offending, and system contact. This foundational work, however, has mostly not translated to …

We study the effect of birth order on personality using Swedish population data. Earlier-born
men are more emotionally stable, persistent, socially outgoing, willing to assume …

Little is known about the role birth order plays in delinquency and adult crime outcomes that
carry significant externalities. We use rich data sets from Denmark and Florida to examine …

We assess the extent to which the large sibling correlations in substance use are causal.
Our primary approach is based on a joint dynamic model of the behavior of older and …

Individuals' birth order may be a fundamental, engrained human early-life and family-
domain experience that shapes their behaviors in adulthood. However, limited knowledge is …

This paper assesses the methodology employed in longitudinal studies of advertising and
youth drinking and smoking behaviors. These studies often are given a causal interpretation …