Ethics And Corporate Social Responsibility: a Challenge for Capitalism ABSTRACT: The formalisation of ethical conduct or of behavioural norms at work in the texts of firms is not, in itself, a new phenomenon. Already the owners of businesses in the 19th century, in published rules for workshops, imposed a moral code on their workers. Over the past twenty years the charters published by multinationals, in a far more abstract and diverse form, have raised a new debate. The object of this contribution is to propose a certain number of routes for reflection and hypothesis on the subject of this tranformation. This is why we will start from the more contemporary examples by contextualizing the corporate social responsibility movement in a larger set of initiatives. In the second part this paper will rehearse, through an historical perspective, certain traits that characterise relative these contemporary transformations in the relationship between ethics and capitalism.