This merger concept tends to materialize in the wake of real or perceived financial crises, and it is being heard once more following the election of a highly unorthodox president who seems to be establishing an equally unorthodox administration.Some ideas never die, showing up again and again like the proverbial bad penny. The idea of merging the Securities and Exchange Commission (SEC), the regulator for securities trade, and the Commodity Futures Trading Commission (CFTC), the regulator of derivative markets, into a single regulatory agency is one such example. This merger concept tends to materialize in the wake of real or perceived financial crises, and it is being heard once more following the election of a highly unorthodox president...