Moving jorunals from not-for-profit to for-profit publishers?

[Liblicense-L Listowner <liblicen@pantheon.yale.edu>]

Anyone know of any studies that describe the effects on libraries 
of a publisher, let's say a society, moving its journal or 
journals from not-for-profit publishing to a for-profit 
publisher?

Do prices go up? Do interfaces & functionalities change? 
Anything else?

There are many individual stories as well as urban legends.  Any 
rigorous studies of any size?

Many thanks, Ann Okerson/Yale Library