ECONOMIC UPDATE FROM OUR PRESIDENT, JONATHAN CASTELEYN: ARMS or "Buy Downs" Picking Up Steam Adjustable rate mortgages are back although they are called something else these days. As mortgage interest rates rise, adjustable-rate mortgages (ARMs...now repackaged as the "Buy Down") become more popular, and they now make up 12.0 percent of total mortgage production, up from 3.3 percent in November...