Rudolf Kerschbamer
Experimental economist at the University of Innsbruck, co-author of the credence-goods review and of the 936-participant experiment that ranked four proposed remedies for markets where the buyer cannot judge the product.
Who they are
Kerschbamer works on experimental economics and information asymmetry, and has returned to credence goods repeatedly, including a later survey of laboratory and field experiments in the area.
Two-author and three-author papers do not divide credit by section, and this page does not guess at one. What the work established is that the four remedies economists propose for credence-goods markets are not equal: liability does the work, verifiability barely registers, reputation has little influence, and competition changes prices rather than outcomes.
Key papers
Dulleck, U., & Kerschbamer, R. (2006). "On doctors, mechanics, and computer specialists: the economics of credence goods." Journal of Economic Literature. Second author.
Dulleck, U., Kerschbamer, R., & Sutter, M. (2011). American Economic Review, 101(2), 526-555. Second author.
Key ideas
The ranking of remedies is the contribution, and it is the part that transfers to consumer advice. See Credence Goods and Information Asymmetry.
Experiments can test institutional design, which is what makes this more useful than a survey of attitudes.
Sources
- Dulleck & Kerschbamer (2006), doi:10.1257/002205106776162717. Dulleck, Kerschbamer & Sutter (2011), American Economic Review, 101(2), 526-555, doi:10.1257/aer.101.2.526.