November 28, 2023

Causal forests with fixed effects for treatment effect heterogeneity in difference-in-differences

Recently developed heterogeneity-robust two-way fixed effects (TWFE) estimators do not quantify the full heterogeneity in treatment effects in a difference-in-differences research design....

September 26, 2023

Mortgage Debt Limits and Buy-to-Let Investors: A Structural Model of Housing with an Endogenous Rental Sector

Since the financial crisis, home ownership rates have decreased across the world. Also in the Netherlands, the size of the rental sector has increased. Decreased access to mortgage debt explains part of this development. We show that tightened mortgage debt limits explain a fifth of the increase in rentals between 2013 and 2019.