"The grave financial and economic crises of the present time ... have pushed man to seek satisfaction, happiness and security in consumption and earnings out of all proportion to the principles of a sound economy."
"The succession of economic crises should lead to a timely rethinking of our models of economic development and to a change in lifestyles," he said.
Francis, who was named Time magazine's Person of the Year on Wednesday, has urged his Church to be more fair, frugal and less pompous and to be closer to the poor and suffering.
His message will be sent to national leaders, international organisations, and NGO's. Titled "Fraternity, the Foundation and Pathway to Peace", the message also attacked injustice, human trafficking, organised crime and the weapons trade as obstacles to peace.