Study: ~200 Instacart shoppers in four US cities were shown different prices for the same 20 grocery items; Instacart confirms it is running short term “tests” (Ben Casselman/New York Times)

Ben Casselman / New York Times:
Study: ~200 Instacart shoppers in four US cities were shown different prices for the same 20 grocery items; Instacart confirms it is running short term “tests”  —  The findings are the latest example of how the notion of a single price is breaking down in the digital age …