Home Business Japan's retail sales slump the most since 2015 as tax hike hits... Business Japan's retail sales slump the most since 2015 as tax hike hits demand By Genpie - November 28, 2019 75 0 Facebook Twitter Google+ Pinterest WhatsApp Japan’s retail sales tumbled at their fastest pace in more than 4-1/2 years in October as a sales tax hike prompted consumers to cut spending, raising a red flag over the strength of domestic demand.