Circulation: Use Regression Analysis to Optimize Catalog Circ and Sales Data

We’re not optimizing sales on the West Coast. We can’t predict with certainty how customers there will spend. On the other hand, since the increases were fairly similar in both regions (even though the West Coast has no statistical match with the discounts), if we could find out how to improve sales there, then double-digit sales increases should be easily reachable even with minimal discount offerings.