OpinionBanknotes of Japanese yen are seen in this illustration picture taken on June 15, 2022. Florence Lo/Illustration/ReutersPeter St Onge&E.J. Antoni1/26/2026|Updated: 1/26/2026CommentaryOn Tuesday, Jan. 20, the Dow Jones Industrial Average stock index crashed 870 points, the biggest drop since October.Peter St Onge is an economic research...