I don't know if the term 'liberation theology,' which can be interpreted in a very positive sense, will help us much. What's important is the common rationality to which the church offers a fundamental contribution, and which must always help in the education of conscience, both for public and for private life.
To me, it really seems visible today that ethics is not something exterior to the economy, which, as technical matter, could function on its own; rather, ethics is an interior principle of the economy itself, which cannot function if it does not take account of the human values of solidarity and reciprocal responsibility.
The life of the community, both domestically and internationally, clearly demonstrates that respect for rights, and the guarantees that follow from them, are measures of the common good that serve to evaluate the relationship between justice and injustice, development and poverty, security and conflict.
Certainly a sort of industrial use of creatures, so that geese are fed in such a way as to produce as large a liver as possible, or hens live so packed together that they become just caricatures of birds, this degrading of living creatures to a commodity seems to me in fact to contradict the relationship of mutuality that comes across in the Bible.