The International Organization of Securities Commissions is working on a set of “good practices” to provide to the vast majority of the world’s securities regulators as part of an effort to prompt securities investors to reduce their reliance on credit ratings. While participants in the U.S. structured finance industry suggest that reliance on credit ratings diminished after the financial crisis, many funds continue to have guidelines that reference credit ratings. Some investors, for example, couldn’t buy into risk-sharing transactions from the government-sponsored enterprises unless the deals received investment-grade ratings. IOSCO recently issued...