Monday assorted links by Tyler Cowen July 22, 2019 at 2:56 pm 1. It is quite hard to infer emotions from faces. 2. “What’s deoxyribonucleotide in sign language?” 3. “…an arguably large number of Nobel laureates in economics had as a dissertation adviser another laureate.” 4. The Notre Dame fire revives the demand for skilled stone carvers. 5. Should children be restricted on campus? 6. Legal marijuana is helping the black market.