Using data from the child supplement of the US National Longitudinal Survey of Youth, and fitting three-level random-effects models of child health and cognitive development, we test whether left-handed children have different outcomes from those of their right-handed counterparts. The health measures cover both physical health and mental health, and the cognitive development test scores span v...

OBJECTIVE It is well documented that clozapine treatment causes agranulocytosis, but it can also induce drowsiness, constipation, and hypersalivation; however, these symptoms are usually less severe. It has been reported that clozapine-treated patients with schizophrenia and psychiatric healthcare professionals consider different side effects to be important. The aim of this study was to assess...

This paper provides empirical evidence on the link between piracy and software protection, taking piracy determinants in cross–country regressions as basic reference. For that purpose, we use a panel data set for 24 countries over three years, 1994, 1997 and 2000, relating piracy rates to an index of software protection, per capita income and a set of country fixed effects. Results display that...

Random-effects regression models have become increasingly popular for analysis of longitudinal data. A key advantage of the random-effects approach is that it can be applied when subjects are not measured at the same number of timepoints. In this article we describe use of random-effects pattern-mixture models to further handle and describe the influence of missing data in longitudinal studies....

Homicide rates, like all other crimes, historically suffer from underreporting biases and datasets lacking a wide enough range of countries. However, the UNODC’s Global Study on Homicide have made strides in complete data collections as well as analyzing homicide patterns globally. This paper takes advantage of this dataset and information source to perform a cross-country, fixed-effects regres...

It has been argued in the economic literature that job search through informal job networks improves the employer–employee match quality, especially in high wage sectors. This paper argues that inventors’ research collaboration networks reduce the uncertainty of firms about the match qualities of inventors prior to hiring. We estimate the effect of inventors’ collaboration networks on their pro...

Objective: Both the National Institute of Mental Health and the American Psychological Association have called upon psychodynamic practitioners to start demonstrating their outcomes. This effectiveness study attempted to begin to answer these calls. Method: The study was a secondary analysis of data from a multidisciplinary, psychodynamic mental health clinic. It used a single-group, within-sub...

This paper examines the impact of being a victim of violent or property crime on labour market outcomes and general well-being using longitudinal data from the nationally representative Household Income and Labour Dynamics of Australia (HILDA) survey. We estimate fixed effects regression models that examine changes in outcomes for individuals before/after victimisation relative to changes in ou...

This paper studies inference on fixed effects in a linear regression model estimated from network data. We derive bounds on the variance of the fixed-effect estimator that uncover the importance of the smallest non-zero eigenvalue of the (normalized) Laplacian of the network and of the degree structure of the network. The eigenvalue is a measure of connectivity, with smaller values indicating l...

OBJECTIVES To review the published literature concerning the effects of on-site mental health professionals on general practitioners' management of mental health. DESIGN Systematic review of controlled trials. SETTING Primary care. PARTICIPANTS General practitioners and mental health professionals. MAIN OUTCOME MEASURES Consultation rates, prescribing of psychotropics, and referrals to ...