Why do some publish full article and others only summary in their RSS feed?

[Marek]

what are some pros and cons for publishers and for readers?

which one do you use and why ?

[Joss]

Bounce rate.

[diogo]

Some want the readers to go to the website and publish only the summary, most commonly because of publicity.

[Nico Knoll]

I think the best way is to add both and let the feedreader decide which to show (take a look at the rss feed WP generates - they do it this way).