Rorate Caeli

Politics - Papal reminders:
Can a Catholic be "pro-Capitalism"? It depends.

[B]efore deciding whether wages are fair, many things have to be considered; but wealthy owners and all masters of labor should be mindful of this - that to exercise pressure upon the indigent and the destitute for the sake of gain, and to gather one's profit out of the need of another, is condemned by all laws, human and divine.
Leo XIII
Rerum Novarum

[I]t is evident that this system is not to be condemned in itself. And surely it is not of its own nature vicious. But it does violate right order when capital hires workers, that is, the non-owning working class, with a view to and under such terms that it directs business and even the whole economic system according to its own will and advantage, scorning the human dignity of the workers, the social character of economic activity and social justice itself, and the common good.
Pius XI
Quadragesimo Anno

[C]an it perhaps be said that ... capitalism should be the goal of the countries now making efforts to rebuild their economy and society? ...

The answer is obviously complex. If by "capitalism" is meant an economic system which recognizes the fundamental and positive role of business, the market, private property and the resulting responsibility for the means of production, as well as free human creativity in the economic sector, then the answer is certainly in the affirmative, even though it would perhaps be more appropriate to speak of a "business economy", "market economy" or simply "free economy". But if by "capitalism" is meant a system in which freedom in the economic sector is not circumscribed within a strong juridical framework which places it at the service of human freedom in its totality, and which sees it as a particular aspect of that freedom, the core of which is ethical and religious, then the reply is certainly negative.
...

Man fulfils himself by using his intelligence and freedom. In so doing he utilizes the things of this world as objects and instruments and makes them his own. The foundation of the right to private initiative and ownership is to be found in this activity. By means of his work man commits himself, not only for his own sake but also for others and with others. Each person collaborates in the work of others and for their good. Man works in order to provide for the needs of his family, his community, his nation, and ultimately all humanity. Moreover, he collaborates in the work of his fellow employees, as well as in the work of suppliers and in the customers' use of goods, in a progressively expanding chain of solidarity. Ownership of the means of production, whether in industry or agriculture, is just and legitimate if it serves useful work. It becomes illegitimate, however, when it is not utilized or when it serves to impede the work of others, in an effort to gain a profit which is not the result of the overall expansion of work and the wealth of society, but rather is the result of curbing them or of illicit exploitation, speculation or the breaking of solidarity among working people. Ownership of this kind has no justification, and represents an abuse in the sight of God and man.
John Paul II
Centesimus Annus