Jim answers questions from fellow Drillers
(More questions with answers here, Work Overview here, Index of concepts here)

Q: First off, I very much appreciate you sharing all this wonderful content on your blog and conferences such as eMetrics.

A: Thanks for that!

Q: My question is a simple one, but I think the answer may be hard: When does a visitor “need” a coupon?  *Need* defined as: visitor would not have placed an order unless presented with the coupon.

A: Hmmm…methinks we’re going to have to define a few concepts and be clear on the goals to make sure we are nailing this down… visitor versus customer, sales versus profit, etc.  In other words, answer is not hard, but could be complex without defining context.

Q: It’s still a mystery to me why so many retailers seem more than willing to hand over all their margins to Groupon or give coupons to basically all visitors.  I am curious whether you would approach this question using observational data (eg web analytics) or experiments (eg AB testing), or both.

A: Right – is a mystery to me too!

There are certain situations where this approach might be appropriate, but the problem with much web “marketing” (which often is really just advertising without much thought about marketing) is often there is success in a narrow or special situation.  Then the pundits jump on and say “if you’re not doing this you are stupid”, regardless of the business situation and / or without recognizing the special circumstances that are driving success.  This is all the real Marketing stuff people leave out; understanding why it works, under what circumstances, for which segments, involving which products.