Twenty-three scholars who have won the Nobel Prize in Economics published a letter on October 23, US time, jointly supporting Harris, the Democratic presidential candidate of the United States, and criticizing her Republican rival Trump's economic plan, especially his proposal to impose tariffs. However, it should be noted that Trump's approval rating has been on the rise since October. Polling data suggest the gap between Mr. Trump and Mr. Harris is narrowing. Notably, Boivin, managing director of research at BlackRock, the world's largest asset manager, said the market had underestimated the risk that one of the candidates in the US Presidential Election would challenge next month's result, which could lead to "weeks of legal wrangling" that could hit financial marekts.