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One thing we can do to improve the profitability of our direct mail is to learn the lessons of a famous jam study.

That’s right. Jam. The stuff we spread over our toast.

In a gourmet market, Professor Sheena Iyengar of Columbia University and her research assistants set up a booth offering samples of Wilkin & Sons jams.

Every few hours, the researchers switched from offering customers a selection of 24 jams to offering a group of only six jams.

Each participating customer – regardless of the number of selections offered – received a $1 savings coupon and tasted an average of two jams.

Here’s the interesting part. (more…)