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G. Hanappi:
"Bridges to Babylon. Critical Economic Policy: From Keynesian Macroeconomics to Evolutionary Macroeconomic Simulation Models";
in: "Economic Policy in Times of Crisis", P. Tridico, L. Mamica (Hrg.); Routledge Publishers, New York, 2014, ISBN: 978-0-415-70731-2, S. 52 - 77.

This paper shows that fundamental theoretical progress is needed to understand the current state of deep crisis. Evolutionary economic theory often is misinterpreted as the narrow task to provide some fine-tuning of the assumptions of microeconomics concerning a firm´s innovation behavior. The more methodologically inclined scientific community at least would add that evolutionary economics is part of complexity research, that the interaction of non-equilibrated micro-units eventually will lead to surprisingly simple structured macroeconomic patterns. To experiment with economic complexity it always needs simulation of mostly heterogeneous sets of agents, which in turn produces a Babylon of outcomes of simulation runs. Traditional macroeconomists typically find it difficult even to communicate with researchers in evolutionary macroeconomic simulation models, two different languages, parallel worlds seem to exist.
To improve mutual understanding, and to show how far evolutionary economic simulation can advance political economy by explaining traditional macroeconomics as a (mostly rather implausible) special case of its own more general approach, is the aim of this chapter. Arguing from the opposite side it has to be taken serious that received macroeconomic theory can help tremendously to structure the Babylon of simulation runs - it helps to build bridges from and to the tower of Babylon.