They already have that - telling you current employer you're going to leave due to a better offer gives them the opportunity to provide a counter. That's not a

They already have that - telling you current employer you're going to leave due to a better offer gives them the opportunity to provide a counter. That's not a law, and doesn't need to be (I'm not even sure how you would make a law in which a company could not offer a raise to prevent you from leaving?). The alternative would be that you were legally required to accept an offer once it was made, which seems to be even more absurd than a non-compete.