It isn't a trick: the same thing happens in the US with African-American names on resumes and is trivially repeatable on your own if you are so inclined. It has nothing to do with job performance either: measured job performance isn't variable.
It does have to do with cultural comfort, and the fact humans make hiring decisions instead of machines. In any case where human judgement has been replaced by measurement or judgement blind to demographics diversity has increased.
I know it's annoying when reality is non-optimized, but it doesn't take twisting ourselves into knots to explain why: humans make predictably bad decisions.
It has nothing to do with job performance either: measured job performance isn't variable.
Citation needed for this one. It's pretty easy to to measure resume response rates, but I'd love to know how you would even go about measuring this one.
In any case where human judgement has been replaced by measurement or judgement blind to demographics diversity has increased.
This is simply false. For one example, take university admissions - after Grutter, universities have switched from objective systems to systems with human biases in order to increase demographic diversity.
Similarly, take a look at Ricci - the objective measurement system (firefighting tests) was replaced with a human judgement system in order to increase the number of minorities.
It's certainly true that diversity has increased in some cases, however - I believe women in classical music is the standard example.
It does have to do with cultural comfort, and the fact humans make hiring decisions instead of machines. In any case where human judgement has been replaced by measurement or judgement blind to demographics diversity has increased.
I know it's annoying when reality is non-optimized, but it doesn't take twisting ourselves into knots to explain why: humans make predictably bad decisions.