*This article aims at evaluating the effect of a Social Housing allocation on tenants’ trajectories in France. Using a unique and novel linkage of administrative data about social housing requestors and tax declarations, I will try to match assigned and non-assigned individuals with similar characteristics in a propensity score matching framework and compare their outcomes’ evolutions (incomes, activity status, location …) for 5 years.

**This paper proposes an optimal short-time work policy for recessions such as the Great Recession or the COVID-19 recession. I model an economy in which firms and workers are unable to modify the labor contract during recessions and investigate how a short-time work policy can improve the situation. I include a firm's financial constraint, a distortionary labor tax, a firm-specific skill accumulation mechanism, and a government budget constraint. I find that the classical policy of reducing the cost of short-time work for firms to 0 and facilitating access to the short-time work program is not optimal. First, short-time work programs need to be coupled with an hours subsidy and access to loans. Second, the cost of short-time work should be higher than 0 and continuously adjusted according to the severity of the recession. Third, short-time work programs should be an experience rating program to ensure their sustainability.