Re: Finding the modifiers. Is this possible?
Your cost-per-click is independent of where the ad is displayed, but rather is dependent on the bids of other advertisers whose ads are simultaneously displayed or eligible for display.
As the advertisers in each market may 1) be different, and/or 2) have set up separate campaigns by market for the purpose of independently controlling their costs by market, you should set up separate campaigns so as to have such independent control.
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