Viewing profile — mcbailey

A group of economists at Ebay ran a series of experiments to measure the value or promoted links when the brand already own the top organic link http://faculty.haas.berkeley.edu/st…

Here are the charts with the confidence intervals: http://content.onlinejacc.org/article.aspx?articleID=2108914 It is crazy they would present a subgroup analysis with 40 people, t…

I came to a very different conclusion from the data than the authors. The difference in the numbers was not substantively different (an absolute difference of about 1%) and much, m…