I don't agree that "Centesimus Annus" endorses a "market economy" ideology.  
In particular, due also to the specific historical moment (1991), Joan Paul  
II was critical of the collectivistic economy, but the central issues of  
common good and the ethics of virtues are not consistent with the main  
theoretical element of a market economy, that is the common good as  
unintended consequence of people acting for individual self-interest.   
Furthermore, Benedict XVI with his "Deus Charitas est" claims a central role  
of the State intervention in the economy, and is quite critical of the free  
market economy. In general the catholic social thought is not against the  
market (being the market economy an "invention" of the Christianitas), but  
it does not endorse any particular ideology (included liberalism), although  
people like Micheal Novak think that this link between Christianity and  
liberalism actually exists. Novak, however, does not represent the thought  
of the Church, nor is the mainstream among catholic economists and social  
scientists (at least in Europe).  
  
Luigino Bruni