May 21st, 2008, 9:04 pm
Companies don't like to cut "regular" dividends, so they are sticky downward, and changes in dividends will be negatively skewed, because when business is bad, a company may eliminate its dividend altogether. Companies declare "special" dividends when they want to tell the market that a dividend is one-time rather than sustainable.Dividend swaps are traded by Barclays and I assume other banks, and Barclays dividend swap indices are available on Bloomberg I believe.