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Degraded trust and cohesion within a country have large socioeconomic impacts but also present risk for collective survival in the face of a pandemic
Human mobility decreases in Europe during generalized lockdowns in March 2020
The shelter-in-place policy is significantly more effective, i.e. mobility reduction in non-necessary activities is larger, in regions with higher levels of political trust
Mobility reduction is positively related to the daily stringency of national policies and this association is stronger in high-trust regions
The trust effect also translates in large differences in terms of COVID-19 mortality growth rate.
While degraded trust and cohesion within a country are often shown to have large socio-economic impacts, they can also have dramatic consequences when compliance is required for collective survival. We illustrate this point in the context of the COVID-19 crisis. Policy responses all over the world aim to reduce social interaction and limit contagion. Using data on human mobility and political trust at regional level in Europe, we examine whether the compliance to these containment policies depends on the level of trust in policy makers prior to the crisis. Using a double difference approach around the time of lockdown announcements, we find that high-trust regions decrease their mobility related to non-necessary activities significantly more than low-trust regions. We also exploit country and time variation in treatment using the daily strictness of national policies. The efficiency of policy stringency in terms of mobility reduction significantly increases with trust. The trust effect is nonlinear and increases with the degree of stringency. We assess how the impact of trust on mobility potentially translates in terms of mortality growth rate.