Paying for biz jet ratings?
I was looking through various ads for biz jet jobs recently and it seems that pretty much all advertised positions require type ratings on the relevant aircraft.
Now I know that a lot of biz jet jobs are word of mouth but when moving up the size of aircraft who normally pays for the rating? If one is flying say a Citation 500 how easy is it to move up to something larger, does it normally involve buying a rating to move on?