Visualizing the relationship between quality score & CPC
The SEM industry has published a lot of information about the importance of improving quality score to lower average cost per click (CPC). Most of those articles, however, just share a table with quality score in one column and its associated % increase/decrease to average CPC in the other. Although helpful I think it misses the mark on underscoring the magnitude of how much QS can help CPC. We will do something different: the python code below will take that data and visualize the impact to average CPC for a given quality score....