German shoe retailers suffered nominal decreases of 7 percent during the month of March as well as for the first three months of this year, according to the Institut für Handelsforschung. In real terms, excluding inflation, the drop amounted to almost 9 percent in March and 8 percent for the first quarter. The lackluster performance compares with a first quarter of 2014 in which the trade had enjoyed a sales increase of 18 percent.