Linking from a page back to itself has no benefit what-so-ever. A page has already benefited from the link juice coming to it, it cannot then pass that back to itself. Also, note that the first anchored text hold the most value, in fact a page back in 2008, Rand stated that it hold all the value:
http://www.seomoz.org/blog/results-of-google-experimentation-only-the-first-anchor-text-counts
Good internal linking is based on getting from the home page to the internal page in the smallest number of links. Keep you site shallow to help the user easily navigate to the important pages on your site.
http://www.seomoz.org/learn-seo/internal-link
And Finally, remember Google is based on user experience, this is something that does not benefit the user in anyway, that I can think of, so Google (and other SE's) will have made sure this hold no value to their algorithm.
Well, they're my thoughts.