different CTR on organic search results?

[Niles]

Surprised to find no research on this one:

Does hyphenation of the domain name influence CTR on hte SERP?

Given query "x y z" (ie "hair dryer deals"), what url would get the most clicks in Google, given the ranking position and result snippet is exactly the same: www.xyz.com, or the hyphenated alternative www.x-y-z.com ?

any thoughts? Has anyone conducted some research on factors influencing the CTR of organic listings?

[agerhart]

I have read a number of documents based on heatmaps that analyzed click patterns and CTR based on position. There are a bunch out there if you do some searches. But to be honest I've never seen any studies based on the use of hyphens in the URL.