This book provides an overview of two hundred years of German economic thought, from the Steetswissenschaften of the eighteenth century to National Socialism and the Social Market. Whereas Classical Economics, from Smith through Ricardo, to Marx and Mill, emphasised value, distribution and production, German economic thought had a long-running tradition of human need and the varying conditions for order. These ideas are brought together by a conception of rational action and, therefore, a rationalistic appraisal of welfare and order. By taking this perspective, the usual contrast of market and planning approaches to economic organisation is subsumed by an approach which focuses on the construction of order in economic processes. This book highlights the continuity of this practical approach of German economists through the two centuries under consideration - from the Cameralists to the Ordoliberals.