<prompt> Human: Using a throwaway since some of my co-workers know of my regular account.A few weeks ago, I was referred by an old college friend to a position at her office. Im fairly happy with my current job, but I hate to leave a stone unturned so went to an interview at her office to check it out. While the other position and the atmosphere there would be pretty much identical to where I am now, it would involve about 15K to 20K a year jump in salary from where I am now. Theyve sent me an offer that pretty much guarantees that, and I havent even started negotiating yet.I would honestly like to stay at my current place of work which is slightly more aligned with my interests, but I obviously cant ignore that much of a guaranteed raise if I take the new gig. Ive never really been in this situation before, so Im unsure how to go about it with my current employer to negotiate any counter offer.While Im most likely not going to stay here if they cant provide any raise at all, Id consider staying even if they could keep it somewhat in the ballpark.Whats your best advice to me on how to proceed? Anything I should know or consider?  <response>: If you try to negotiate for a higher rate at your current job, be prepared for the following:1 Whats the lowest amount youd take to stay? If you tell them you are getting 20k more, are you willing to stay for 10k? You say it is more aligned with your interests, which accounts for something.2 Even if they give you 20k more, there is a risk that they see you as a flight risk, and are just paying you the salary increase until they can find a replacement.I say if you are happy with the new position negotiate for what you can, and take it. Dont bother trying to get a counter from your current employer. 