Description: Over a short span of two weeks, the financial system has observed the collapse of two mid-sized U.S. commercial banks, California-based Silicon Valley Bank (“SVB”) and New York-based Signature Bank, and a takeover of troubled Credit Suisse by a rival in Europe. Other banks that serve a similar demographic as SVB, such as First Republic Bank and PacWest Bancorp, have also experienced an elevated level of customer deposit withdrawals while their stock prices plummeted. The U.S. Federal Deposit Insurance Corporation (FDIC) quickly stepped in and guaranteed all deposits from the failed banks to prevent a broader crisis in the banking system. The current turmoil in the financial system is a stark reminder of the importance of effective risk management and regulation.

Description: The paper demonstrates that the most popular rationalization for evolving glide paths is flawed and should be discarded. The paper also demonstrates that glide paths should generally evolve for investors that endeavor to optimize outcomes and reevaluate their portfolios regularly.