  In this paper, we investigate how the COVID-19 pandemics and more precisely
the lockdown of a sector of the economy may have changed our habits and,
there-fore, altered the demand of some goods even after the re-opening. In a
two-sector infinite horizon economy, we show that the demand of the goods
produced by the sector closed during the lockdown could shrink or expand with
respect to their pre-pandemic level depending on the length of the lockdown and
the relative strength of the satiation effect and the substitutability effect.
We also provide conditions under which this sector could remain inactive even
after the lockdown as well as an insight on the policy which should be adopted
to avoid this outcome.
