Economic effects of upfront subsidies to ownership: The case of the Prêt à Taux Zéro in France

This article analyses some effects of the French upfront subsidy to homeownership called Prêt à Taux Zéro (PTZ) introduced in 1996. The PTZ can be viewed as a downpayment subsidy to low and middle-income first-time buyers. The effects of the subsidy are modelled by simulating the introduction of the PTZ in an econometric model of mobility and tenure choice estimated on micro-data. Our results show that the PTZ significantly increases access to ownership by allowing some households to leave the rental sector sooner. However, the PTZ generates a large windfall effect. We estimate that 85% of the beneficiaries in a 4-year period would still have moved to own in the absence of the subsidy. As a consequence, the PTZ has a rather low multiplier effect, which we estimate at around 1.3. Our simulations also show that the PTZ may not help to improve the overall quality of new construction in France.