“This elegant experiment follows in a tradition of audit testing, in which social scientists have sent testers of different races to, for example, bargain over the price of new cars or old baseball cards. But the Australian study is the first, to my knowledge, to focus on discretionary accommodations. It’s less likely these days to find people in positions of authority, even at lower levels of decision making, consciously denying minorities rights. But it is easier to imagine decision makers, like the bus drivers, granting extra privileges and accommodations to nonminorities. Discriminatory gifts are more likely than discriminatory denials.”