the implementation of Rule 10b-18 in November 1982 drew little notice in the press but opened the way to a sustained transfer of wealth. The rule gave companies that purchased shares of their own stock in the open market “safe harbor” from charges of manipulation, as long as they didn’t exceed a limit of 25 percent of the daily trading volume. Over the subsequent decades, the University of Massachusetts economist William Lazonick wrote, “stock buybacks have channeled the productivity gains of U.S. business into the hands of the richest households, while the persistent gushers of corporate cash
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