In his 29 years of investing, former Tudor Investment Corp. manager Brett Gillespie says he “can’t recall a more exciting outlook for macro investing," according to a recent letter to investors. With the US Federal Reserve withdrawing interest rate accommodation at a time when a robust fiscal stimulus is on the table, it helps to understand the economic situation by recognizing that surprise is a component of the Trump administration’s playbook. And shock can be a challenge to model.


Under “normalized” circumstances, an economic recovery from a balance sheet recession might be expected...

