Comparing results from the question "would others take advantage of you if they got the chance?" in U.S General Social Survey and statistics on income inequality, Eric Uslaner and Mitchell Brown found there is a high correlation between the amount of trust in society and the amount of income equality.
Ved at sammenligne resultater fra besvarelsen af spørgsmålet Ville andre snyde dig, hvis de fik chancen? fra den amerikanske socialundersøgelse med statistikker for indkomstulighed fandt Eric Uslaner og Mitchell Brown, at der er en høj korrelation mellem omfanget af tillid i et samfund og omfanget af indkomstulighed.