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Pay parity is all about ensuring that women and men earn the same pay for the same work, yet the gender pay gap is still alive and well. Sources vary but one estimate put it at 11% back in 2016 (source). For every dollar a man earns, a woman earns 89 cents. But can an artificially intelligent system that makes decisions without bias or regard for someone’s gender solve this problem? For example, if you could design a system that schedules work shifts and pay rates based on a blind algorithm that does not factor gender into the decision, you would logically expect to find that men and women earn the same in such a system, correct?
But what if I told you this isn’t the case?
There’s an employer that exists in markets around the globe with this kind of system in place. In a recent analysis by economists from Stanford and the University of Chicago, the researchers found that in spite of this highly automated, gender-blind algorithm that sets pay rates and assigns work in real time, men still out-earn women. This employer, if you’re curious, is Uber.
In an analysis released earlier this year, several economists looked at the transactions that occurred in the system to understand if there was a pay gap. Transparently, one of the economists fully admitted that he expected to see little to no gap in pay because of the structure of the system. Again, we all logically expect this. Yet the conclusions of the analysis are equally logical, if a little confounding, for those of us that had hoped to find a mechanism for eliminating the gender pay gap.
How the Pay Gap Occurs
The gender pay gap in the open market is around 11%, but the gap for Uber drivers is closer to 7%. Three factors feed into the pay gap, according to the research:
- Experience accounts for about 33% of the gap. To put it simply, drivers with more trips earn more than drivers with fewer trips. Because men have longer tenures on the Uber platform, on average, they reap the benefits of this.
- Driving speed accounts for about 50% of the difference. Men drive faster which means they can get more pickups per hour. Side note: men drive marginally faster on average in the broader population as well, this isn’t just relegated to Uber drivers.
- Variations in work times and routes make up the remaining 17%. Men take on shifts during higher surge times and in surge-friendly locations, leading to higher hourly earnings. Surges occur when there is higher demand for drivers, which pushes up the cost per drive for passengers.
What is important to note is that pay assignments are equal. Men and women that drive the same route at the same time earn the same pay. In that respect the algorithm really is leveling the playing field. However, in terms of hourly wages, men are earning slightly more because they have more experience, faster driving speeds, and more lucrative routes/pickups.
My conclusion? Unequal results doesn’t mean unequal treatment at the outset. In this case I’d say the algorithm worked as advertised, and that good ol’ human unpredictability explains the rest.