What causes CPC to increase?

Why Did My Cost-Per-Click (CPC) Skyrocket? (Part 1)

  1. Increased Competition for Ad Space. The law of supply and demand states that when there is an increase in the number of advertisers and the supply of advertising space is reduced, …
  2. Decreased Competition for Ad Space. …
  3. What can be done to protect from skyrocketing CPC’s?

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