Before revision:  In the current paper, we examine whether Tennessee's policy has affected (i) the number of confirmed Covid-19 cases, (ii) the number of trips to work, and (iii) the (unobserved) number of actual Covid-19 cases. To study these effects, we employ standard identifying assumptions in the policy evaluation literature, but this strategy is greatly complicated by the non-random nature of the tests.
After revision:  To understand the effect of the policy, we combine standard identifying assumptions in the policy evaluation literature, but this strategy is greatly complicated by the non-random nature of the tests.