Immunisation during pregnancy is a vital strategy to protect infants from infectious diseases in their first months of life. Drawing on administrative data from New Zealand, I analyse the relationship between birth order, maternal vaccination against pertussis and influenza, and subsequent...

Childhood immunisation coverage in New Zealand has fallen since 2016, with the decline accelerating during the COVID-19 pandemic. Using administrative data from Stats NZ's Integrated Data Infrastructure, we examine determinants of immunisation uptake and how these have changed over time. We find...

This paper examines the impact of tuition subsidies on tertiary education outcomes in a setting where financial barriers are already substantially reduced. We study the introduction of New Zealand's Fees-Free policy, which eliminated first-year tuition fees, in a system where tuition is financed...

We introduce a generalisation of Aguiarís (2017) random categorisation rule (RCR) that allows preferences to be category dependent. Our generalised random categorisation rule (GRCR) requires the preferences associated with two di§erent categories to agree on their intersection. We show that...

We provide new evidence on the economic outcomes of transgender and gender diverse people in New Zealand (NZ) using confidential linked administrative data from driver license records - which identify gender diverse people since 2021 - linked to NZ birth and tax records. We document that gender...

We study the relationship between financial well-being and sexual orientation in the United States using Survey of Household Economics and Decisionmaking (SHED) data for 2019-2022. We document that people who are lesbian, gay, and bisexual (or LGB) have significantly more difficulty managing...

This paper considers a binary decision to be made by a committee - canonically, a jury - through a voting procedure. Each juror must vote on whether a defendant is guilty or not guilty. The voting rule aggregates the votes to determine whether the defendant is convicted or acquitted. We focus on...

The COVID-19 pandemic had disproportionate impacts on women's employment, especially for mothers with school-age and younger children. However, the impacts likely varied depending on the type of policy response adopted by various governments. New Zealand presents a unique policy setting in which...

We extend and refine conditions for "Luce rationality" (i.e., the existence of a Luce - or logit - model) in the context of stochastic choice. When choice probabilities satisfy positivity, we show that the cyclical independence (CI) condition of Ahumada and Ulk¨u (2018) and Echenique and Saito...

The classical Luce model (Luce, 1959) assumes positivity of random choice: each available alternative is chosen with strictly positive probability. The model is characterised by Luce's choice axiom. Ahumada and Ulk¨u (2018) and (indepen- ¨ dently) Echenique and Saito (2019) define the general...