Understanding labels and ctr

understanding ctr

[katdadi]

I've just started using AW and have a few questions. Please forgive me if I've overlooked an explination of this in the forum but I can't figure out how to search forum.
How long should I run a keyword if I get no impressions?
What would you say is a minimum or average CTR for a keyword before dumping it?
What does average position (avg pos) really mean in a low budget campaign? Adwords help is not idiot proof!

[sem4u]

>How long should I run a keyword if I get no impressions?

Keep it running until it gets disabled or receives impressions.

>What would you say is a minimum or average CTR for a keyword before dumping it?

Average CTR is 2%. As long as a keyword is running, then keep it. You may want to move it to a more relevant group though.

>What does average position (avg pos) really mean in a low budget campaign?

Average position is just the average position of the keyword, regardless of budget.