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WHY BEHAVIOURAL POLICY NEEDS MECHANISTIC EVIDENCE

Published online by Cambridge University Press:  20 November 2015

Till Grüne-Yanoff*
Affiliation:
Department of Philosophy and the History of Technology, Royal Institute of Technology (KTH), Brinellvägen 32, 10044 Stockholm, Sweden. Email: gryne@kth.se. URL: http://people.kth.se/~gryne/

Abstract:

Proponents of behavioural policies seek to justify them as ‘evidence-based’. Yet they typically fail to show through which mechanisms these policies operate. This paper shows – at the hand of examples from economics and psychology – that without sufficient mechanistic evidence, one often cannot determine whether a given policy in its target environment will be effective, robust, persistent or welfare-improving. Because these properties are important for justification, policies that lack sufficient support from mechanistic evidence should not be called ‘evidence-based’.

Type
Articles
Copyright
Copyright © Cambridge University Press 2015 

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