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It's quite possible to have a home page of PR 'n' and some sub-pages also of PR 'n'.
It's more likely to have a home page of PR 'n' and sub-pages of PR 'n-1'.
But the way that PR fans out and is redistributed (usually recursively) mean that your generalisation is probably an over-generalisation.
My suggestion is that first of all, you look at your different pages and try to assess what pages are where because of their connectivity in your site. Having looked at the (almost) static parts of your website PR, you can then re-visit the question of Hrefs.
DerekH