Rating public ratings systems
In an increasing number of marketplaces, such as Airbnb and Uber, customers rate their service provider, and get rated in return. Potential downsides from this evolution were explored in a Black Mirror episode that described a future where personal ratings determined everything from which neighbourhood you lived in to the type of car you could rent. But this trend needn’t be scary. In theory, it should lead to efficiencies. Many transactions take place with asymmetries of information. Does this hotel