Ha Nguyen

Time investment and child development

This project aims to explore how Australian children spend their time over an extended and important period of their lives (from birth to 16/17 years old) and how such time allocation contributes to their development outcomes.

LCC Flagship in Educational Equity. Using integrated administrative data to improve educational equity over the life course. UWA component - Evaluation of the Adult Migrant English Program

This project seeks to better understand the broader impacts of the AMEP on migrant outcomes.

Bilingualism, Parental English Skills and Child and Adolescent Development

This project will provide important policy directions for design of language educational programs in Australian schools, developing a multi-cultural society, multi-lingual workforce, sourcing of immigrants from different language backgrounds and English abilities in order to obtain the best developmental outcomes

The ARC Centre of Excellence for Children and Families over the Life Course

Origins and developmental paths of medical conditions from mid-childhood to mid-adolescence in Australia: Early-life adverse conditions and their lasting effects

This study investigates various common medical conditions affecting Australian children aged 4–14 years and the impact of prenatal and early-life conditions on these health conditions using a large national data set with 15 years of follow-up.

Prevalence, distribution, and inequitable co-occurrence of mental ill-health and substance use among gender and sexuality diverse young people in Australia: epidemiological findings from a population-based cohort study

To estimate the prevalence, distribution, and co-occurrence of mental ill-health and substance use among gender and sexuality diverse young people relative to their cisgender and heterosexual peers in Australia using population-level, nationally representative data.

The effects of sleep duration on child health and development

Children and adolescents spend more than one-third of their time sleeping. Yet, we know little about the causal impact of sleeping on their development. This paper is the first to exploit variation in local daily daylight duration measured on pre-determined diary dates across the same individuals through time as an instrument in an individual fixed effects regression model to draw causal estimates of sleep duration on a comprehensive set of child development indicators. 

Retirement, housing mobility, downsizing and neighbourhood quality - A causal investigation

This paper provides the first causal evidence on the impact of retirement on housing choices. Our empirical strategy exploits the discontinuity in the eligibility ages for state pension as an instrument for the endogenous retirement decision and controls for time-invariant individual characteristics. The results show that retirement leads to a statistically significant and sizable increase in the probability of making a residential move or the likelihood of becoming outright homeowners.

The causal impact of mental health on tobacco and alcohol consumption: An instrumental variables approach

The reciprocal relationship between psychiatric and substance use disorders is well-known, yet it remains largely unknown whether mental health morbidity causally leads to addictive behaviours. This paper utilises a fixed effects instrumental variables model, which is identified by time-varying sources of plausibly exogenous variations in mental health, and a nationally representative panel dataset from Australia to present robust evidence on the causal impact of mental distress on cigarette smoking and alcohol drinking behaviours.

Accuracy of self-reported private health insurance coverage

Studies on health insurance coverage often rely on measures self-reported by respondents, but the accuracy of such measures has not been thoroughly validated. This paper is the first to use linked Australian National Health Survey and administrative population tax data to explore the accuracy of self-reported private health insurance (PHI) coverage in survey data.

Causal Impact of Physical Activity on Child Health and Development

The relationship between physical activity and child health and development is well-documented, yet the extant literature provides limited causal insight into the amount of physical activity considered optimal for improving any given health or developmental outcome.

Gender differences in time allocation contribute to differences in developmental outcomes in children and adolescents

Using over 50 thousand time-use diaries from two cohorts of children, we document significant gender differences in time allocation in the first 16 years in life. Relative to males, females spend more time on personal care, chores and educational activities and less time on physical and media related activities. These gender gaps in time allocation appear at very young ages and widen overtime.

The impact of weather on time allocation to physical activity and sleep of child-parent dyads - Life Course Centre Working Paper Series 2021

This study explores the differential impact of weather on time allocation to physical activity and sleep by children and their parents. We use nationally representative data with time use indicators objectively measured on multiple occasions for more than 1,100 child-parent pairs, coupled with daily meteorological data.

Weather and children's time allocation

This paper presents the first causal estimates of the effect of weather on children's time allocation. It exploits exogenous variations in local weather observed during the random diary dates of two nationally representative cohorts of Australian children whose time-use diaries were surveyed biennially over 10 years.

Who's declining the "free lunch"? New evidence from the uptake of public child dental benefits

This study provides the first evidence on the determinants of uptake of two recent public dental benefit programs for Australian children and adolescents from disadvantaged families. Using longitudinal data from a nationally representative survey linked to administrative data with accurate information on eligibility and uptake, we find that only a third of all eligible families actually claim their benefits.

Macroeconomic Fluctuations in Home Countries and Immigrants’ Well-Being: New Evidence from Down Under

Our findings suggest that immigrants in Australia have emotional or altruistic connections to their home countries

The Gender Wage Gap in the Vietnamese Transition, 1993–2008

This essay examines wages and the gender wage gap between 1993 and 2008 in Vietnam