Coherence between theory and policy in Nudge and Boost: Is it relevant for evidence-based policy-making?

Behavioral policies Nudge and Boost are often advocated as good candidates for evidence-based policy. Nudges present or “frame” options in a way that trigger people’s decision-making flaws steer into the direction of better choices. aims to do this without changing themselves. Boosts also choices alternative ways options. However, rather than steering, aimed increase competences. originated extensive research programs: “heuristics-and-biases program” “fast-and-frugal heuristics program,” respectively. How exactly relate theories they from first place? Grüne-Yanoff Hertwig labeled question “theory-policy coherence” propose use it determining evidence-base Boost. I explore question: “In how far is theory-policy coherence relevant policymaking?.” argue implications (weaker stronger) two ways. First, show between programs not strong assumed. It crucial policymaker realize this. Assuming while does exist weaker assumed can lead an incorrect assessment evidence. Ultimately even adoption on false grounds. Second, concept may assist search evaluation (mechanistic) order so, important consider limitations coherence. neither be employed (sole) criterion with which determine well-grounded policy theory, nor basis making comparative evaluations policies.