> Cost of replacement. Compensation increases can be justified based on proving you could make more by going elsewhere. This perversely [emphasis mine] incentivizes people interviewing outside the company. Netflix is famous for this approach.
Why is such incentivization perverse? It's really great for employees to know what their market value is. It stops you from doubting if you are worth more, it gives you the warm fuzzy that you are actually being paid fairly, and that your employer is essentially making a guarantee to pay you fairly. It also is great to be somewhere that is so confident of their ability to retain you, that they encourage this. I'd say this is the opposite of perverse.
No comment on Netflix otherwise, but this approach to pay is extremely fair, extremely transparent, and so IMO extremely desirable.
This approach does, however, require work on your part if you are to take advantage of it. It's not for everyone.