4 papers
Group-Level Treatment Effect Heterogeneity in Difference-in-Differences: A Balanced Approach
Nora Bearth, Nadja van 't Hoff, Torben S. D. Johansen
Understanding how treatment effects vary across groups is central to policy evaluation. In Difference-in-Differences designs, heterogeneity is often studied using subgroup or tripl…
Gender Differences in Healthcare Utilisation: Causal Evidence from Unexpected Adverse Health Shocks
Nadja van 't Hoff, Giovanni Mellace, Seetha Menon
Women live longer than men yet report worse health. One common reading of this male-female health-survival paradox is that women also engage more with healthcare. We challenge that…
Nudging Nutrition: Lessons from the Danish "Fat Tax"
Christian Møller Dahl, Nadja van 't Hoff, Giovanni Mellace +1
In October 2011, Denmark introduced the world's first and, to date, only tax targeting saturated fat. However, this tax was subsequently abolished in January 2013. Leveraging exoge…
Identifying Causal Effects of Discrete, Ordered and ContinuousTreatments using Multiple Instrumental Variables
Nadja van 't Hoff
Inferring causal relationships from observational data is often challenging due to endogeneity. This paper provides new identification results for causal effects of discrete, order…