which airline / ff-program decides on policies
the Thai/UA-discussion about who is to 'blame' for the only 50% credit for eco-flights on Thai using UA's mileage-plus-program (LH credits 100% miles for the same flights) leaves the question open:
who (which airline/which ff-program) decides and pays on flights with one airline and credits to another-airline's ff-program and who decides on the policy (how many miles, class-bonus, etc).