It is often said that after the crisis economic textbooks have to be rewritten. However, as surveys show, almost all professors continue using the standard IS-LM/AS-AD model as the workhorse for undergraduate training. This paper shows that the IS-LM/AS-AD model is not only full of obvious...

After a brief review of classical, Keynesian, New Classical and New Keynesian theories of macroeconomic policy, we assess whether New Keynesian Economics captures the quintessential features stressed by J.M. Keynes. Particular attention is paid to Keynesian features omitted in New Keynesian...

This paper provides an analysis of Keynes's original Bancor proposal as well as more recent proposals for fixed exchange rates. We argue that these schemes fail to pay due attention to the importance of capital movements in today's economy, and that they implicitly adopt an unsatisfactory notion...

The monetary economy has properties that cannot be analyzed using the tools of today's dynamic general equilibrium analysis. Keynes's economics, far from being an aberration in the otherwise orderly evolution of modern macroeconomics from Adam Smith's ideas about the invisible hand, was a major...

This paper examines Robert E. Lucas's views on the relationship of macroeconomics to real world economic phenomena, and on Keynes's place in its history, suggesting that these stem from a particular and debatable understanding of how the subdiscipline has evolved. It considers some implications...

We propose a microeconomic foundation of the multiplier effect and that of the consumption function using a dynamic optimization model that explains a shortage of aggregate demand and unemployment. We show that government purchases boost aggregate demand through a multiplier-like process but...

The Keynesian multiplier effect is reinterpreted and several issues that may have misled assessments of the effect of fiscal spending are discussed. It is shown that even in the textbook Keynesian framework some transfer policy 'reduces' aggregate demand and that public works spending may...

This paper excavates the set of ideas known as modern monetary theory (MMT). The principal conclusion is that the macroeconomics of MMT is a restatement of elementary well-understood Keynesian macroeconomics. There is nothing new in MMT's construction of monetary macroeconomics that warrants the...

Staatsausgaben und Steuereinnahmen verursachen nicht nur einen direkten Impuls, sondern lösen auch eine Multiplikatorwirkung aus. Die Erhöhung des Einkommens führt zu einer Ausweitung des privaten Konsums, somit zu einer weiteren Nachfrageerhöhung und einer abermaligen Produktionserhöhung...

Hans-Werner Sinn zeigt, dass durch eine schuldenfinanzierte Staatsausgabenerhöhung die Staatsschulden in jeder Periode um das – trotz einer partiellen Selbstfinanzierung – unvermeidliche Restdefizit anwachsen und es somit zu keiner Selbstfinanzierung kommen kann.