https://hubbardobrieneconomics.com/2026/10/08/how-good-were-the-deals-during-amazons-prime-big-deal-days/HubbardOBrienEconomics.com Blogen2026-10-08T22:22:21+00:00How Good Were the Deals during Amazon’s Prime Big Deal Days?Prisoner's dilemma, Implicit collusion, Price elasticity and revenue, Price elasticity of demand, Payoff matrix, Amazon Prime Days, amazon.com, Best Buy, Price matching, Repeated gamehttps://hubbardobrieneconomics.com/2026/10/07/solved-problem-a-half-price-sale-on-u-s-treasury-bonds/HubbardOBrienEconomics.com Blogen2026-10-07T18:35:16+00:00Solved Problem: A Half-Price Sale on U.S. Treasury Bonds?Solved problem, U.S. Treasury bonds, James Grant, Yield to maturity, The relationship between bond prices and bond yields, The expression for a bond's yield to maturity, 30-year Treasury bonds, War bonds