Patterns of sustainable specialization and trade
Adam Smith and David Ricardo explained the benefits of trade, based on specialisation and comparative advantage. These concepts, says Arnold Kling, also can provide the basis for explaining fluctuations in employment. In this paper Kling proposes that we jettison the Keynesian paradigm of aggregate supply and demand (AS-AD) in favour of an alternative paradigm, which he calls patterns of sustainable specialisation and trade (PSST).