Monday assorted links by Tyler Cowen December 15, 2025 at 12:14 pm 1. The Challenge. 2. Dolphin-orca barter markets in everything (NYT). 3. Who benefits from Uber surge pricing? 4. Henry Oliver on what makes Jane Austen special. 5. AI and context management, an important Hayekian post. 6. New podcast about climate economics. 7. PC on Tolstoy.