Le tournant expérimental en économie

Hannes Vetter hat sich in Rahmen der Schreibwerkstatt "Varieties of Mainstream Economics?" mit der Evaluation der Bewertung von Umwelt in neoklassischen Makromodellen auseinandergesetzt.

As opposed to the conventional over-simplified assumption of self-interested individuals, strong evidence points towards the presence of heterogeneous other-regarding preferences in agents. Incorporating social preferences – specifically, trust and reciprocity - and recognizing the non-constancy of these preferences across individuals can help models better represent the reality.

This paper starts with an evaluation of three common arguments against pluralism in economics: (1) the claim that economics is already pluralist, (2) the argument that if there was the need for greater plurality, it would emerge on its own, and (3) the assertion that pluralism means ‘anything goes’ and is thus unscientific. Pluralist responses to all three arguments are summarized. The third argument is identified to relate to a greater challenge for pluralism: an epistemological trade-off between diversity and consensus that suggests moving from a discussion about ‘pros’ and ‘cons’ towards a discussion about the adequate degree of plurality. We instantiate the trade-off by showing how it originates from two main challenges: the need to derive adequate quality criteria for a pluralist economics, and the necessity to propose strategies that ensure the communication across different research programs. The paper concludes with some strategies to meet these challenges.

In this keynote speech, Roger Backhouse gives a historical overview of theories on secular stagnation: how it evolved from a description of the economic situation, especially in the U.S. of the 1930s to an analytical tool and then lost importance until its current revival. Backhouse touches upon the contributions of J. A. Hobson, Alvin Hansen, Evsey Domar and Paul Samuelson.