I feel like I'm not articulating my predicament properly. My concern is not a lack of self-confidence, I know that I am good at what at I do and my resume and references reflect that. What I am concerned about is that someone else who is just as good at what they do, but lives in a country with a lower cost of living, then therefore ask for substantially less when asked for their salary expectations, and will therefore likely get the job, which then creates a race to the bottom of sorts, because to stand a chance of being hired I then need to lower my salary expectations to be lower than theirs, and so on, does that make sense?