El siguiente articulo tiene por objetivo las bases epistemologicas que fundamentan la regulación estatal en el ambito de la economia libre de mercado a partir de las ideas del Laissez-faire compartidas por la escuela de Viena.The present work has the purpose to investigate the epistemological foundations that underlie the state regulation in the context of a free market economy in the ideas of laissez-faire shared by the Vienna school. In this perspective, we will seek to identify their foundations within an ethical perspective, as well as its limits, which will be measured analyzing some concrete cases. At the end, we will seek to frame the foundation and the ethical limits of state regulation to the role played by the Constitutional State in the economic sphere.