Briefly

* Adding insult to injury for investors fleeing the stock market, the average seven-day yield on taxable money market mutual funds fell to a record low this week of 1.30%, down from 1.33% a week ago, according to IMoneyNet Inc. in Westborough, Mass. Many economists said the Federal Reserve probably won’t raise short-term interest rates before the fourth quarter. That could keep money fund yields depressed at least until year’s end

* More than 103,000 WorldCom workers lost nearly $1.1 billion in company stock they held in their retirement accounts since the end of 1999, the AFL-CIO said. Because the stock is so widely held, its collapse in the wake of a $3.9-billion accounting scandal already has hit some state pension funds. Although WorldCom did not require workers to accept matching company contributions to their 401(k) pension accounts in the form of company stock as Enron did, the AFL-CIO said many of them were influenced by WorldCom’s culture to bet most of their retirement accounts on the stock.