Wriston’s Law is named after the late Walter Wriston, a giant of banking and finance. In his 1992 book, The Twilight of Sovereignty, he predicted the rise of electronic networks and their chief economic effects. Wriston said capital (meaning both money and ideas), when freed to travel at the speed of light, “will go where it is wanted, stay where it is well-treated.” By applying Wriston’s Law of capital and talent flow, you can predict the fortunes of companies (and countries). All predictions about future performance must start with this most basic question: Do companies (and countries) attract money and...