Michael Brucker of WebEx just published an interesting study on affiliate-based clicks into a CJ merchant’s site.
The study chronicles the impact of paid and natural search clicks (and direct URL entry) on affiliate cookies. He created six models where a visitor lands on a merchant’s site via an affiliate-based click but doesn’t convert.
According to Mr. Brucker, in four out of the six cases, the affiliate’s cookie was overwritten by either another affiliate, or the merchant itself.
More details and screenshots are available at http://baamc.org/Cookiestudy.htm