A year-long experiment was conducted at the self-service checkouts of a supermarket chain in Modena and Ferrara in Italy to test whether there was any link between corruption scandals and how honest consumers were with their shopping. Analyzing data from random checks on the supermarket carts, the researchers found that the probability of not declaring all the purchases increased by 16% to 30% after a local corruption scandal made headlines. The effect reached its peak four days after the news b...