[bonniemuffin]

At my employer, we do "Code reviews help towards bonuses or promotions" -- we're required to include at least a few examples of good thoughtful code reviews into promotion and annual review materials.

I think it's a good policy and it helps ensure some minimum bar of code review from everyone, but it's not sufficient by itself. A person who is only motivated by the promo/review process is going to give "just doing this to check the box"-quality reviews.

I've found that people are much more inspired by all of the intrinsic motivations for doing code review, like learning from others' code and helping your teammates improve. But putting it into promo packets is a good first step to start building that culture.