These five encyclicals provide a body of Church literature which contemplates the value and purpose of labour in a market economy and what this means from a Catholic persepctive.
Encyclical of Pope Leo XIII on Capital and Labor
Encyclical of Pope Pius XI on Reconstruction of the Social Order
Encyclical of Pope John XXIII on Christianity and Social Progress
Encyclical letter by Pope John Paul II on Human Work
Encyclical letter by Pope John Paul II on The Hundreth Anniversary of Rerum Novarum