Quantifying subtle biases is very difficult. There was a great study published in 2015 that showed that the skin color of the hands holding baseball cards in e

Quantifying subtle biases is very difficult. There was a great study published in 2015 that showed that the skin color of the hands holding baseball cards in eBay listings had a measurable effect on the sale price. https://onlinelibrary.wiley.com/doi/abs/10.1111/1756-2171.12115 https://onlinelibrary.wiley.com/doi/abs/10.1111/1756-2171.12...