Tuesday assorted links

1. Dylan Matthews on a Give Directly UBI experiment in Kenya.

2. Mackerels are a medium of exchange in some U.S. prisons (short video).

3. Yuval Levin reviews The Complacent Class: “Cowen’s book is rich in thought-provoking insights and is a testament to his own voracious curiosity and open-minded intelligence. There is more to it than any summary could hope to capture.”

4. Bob Luddy reviews The Complacent Class in American Spectator: “The Complacent Class defines the daunting challenges of our times.”

5. Facts about blue-footed boobies (NYT).