Is there any information out there that suggests the 4th position in adwords yields higher CTR than 3rd? Since the 4th position is top right, it seems to me to have a better chance of being clicked than third down, center. If you have been at this for a while, your opinion is appreciated. /*tom*/ (This is specific to Google search pages, not content partners)
See this thread where someone asked a similar question and my response which is more related to your question. So yes, just like the SERPs, the lower your ad, the lower your CTR will generally be but the decline is not always as dramatic. Note that not all ads in 4th position are in the top right. If there are no ads above the SERPs (top left), the 4th position would be the 4th position from the top right.