Race effects on eBay
通过eBay上的棒球卡拍卖实验，发现黑人卖家比白人卖家售价低约20%（0.90美元），表明种族效应在真实市场中依然存在。
We investigate the impact of seller race in a field experiment involving baseball card auctions on eBay. Photographs showed the cards held by either a dark‐skinned/African‐American hand or a light‐skinned/Caucasian hand. Cards held by African‐American sellers sold for approximately 20% ($0.90) less than cards held by Caucasian sellers. Our evidence of race differentials is important because the online environment is well controlled (with the absence of confounding tester effects) and because the results show that race effects can persist in a thick real‐world market such as eBay.