Coffee, ketchup, yoga pants and sneaker sales climb as consumers stay home

Instant coffee, ketchup, Lululemon yoga pants and Nike Air Max sneakers have been big sellers during the coronavirus pandemic. Bottled water and Burberry trench coats have not. “Everything we knew about supply and demand we can essentially throw out the window because consumer behavior has changed completely,” said Piotr Dworczak, assistant professor of economics at Northwestern University.