Columbia biz-school professor Len Sherman has a new study out, based on GigU data from three longtime Uber drivers, documenting how Uber has leveraged algorithmic pricing to lift its take rate to 50%. "It's unimaginable," he said of that pricing-power exercise at a #WebSummitRio press conference.
The percentage cut that market-maker platforms take from the price consumers pay for products and services is often a contentious business…