1 EARLY CHILDHOOD BEHAVIOURS, SCHOOLING AND LABOUR MARKET OUTCOMES: ESTIMATES FROM A SAMPLE OF TWINS* by

* Miller and Le acknowledge financial assistance from the Australian Research Council. This work was also supported by NIH grants AA07728, AA09022, AA10249, AA11998 (to Heath), as well as grants #951023 and #981351 from the National Health and Medical Research Council (to Martin). We would also like to thank the Australian Twin registry and the twins themselves for participating in this research, Nathan Gillespie for computer code that assisted with the development of the measures of conduct disorder, and two anonymous referees for helpful comments.