Consumers and Experts: An Econometric Analysis of the Demand for Water Heaters

R. Bartels, D.G. Fiebig, A.H.O. van Soest

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Abstract

Consumers can accumulate product information on the basis of a combination of searching, product advertising and expert advice.Examples of experts who provide product information include doctors advising patients on treatments, motor mechanics diagnosing car problems and recommending repairs, accountants recommending investment strategies, and plumbers making recommendations on alternative water heaters.In each of these examples, the transactions involve the sale of goods and services where the seller is at the same time an expert providing advice on the amount and type of product or service to be purchased.In the case of water heaters, the plumber advising a consumer on their choice of water heater will most likely also install the appliance.Because of the information asymmetry there is potentially a strategic element in the transmission of information from expert to consumer.This paper reports on an econometric investigation of the factors that determine the choices made by consumers and the recommendations made by plumbers and the extent to which plumbers act in the best interests of their customers.The empirical work is made possible by the availability of stated preference data generated by designed experiments involving separate samples of Australian consumers and plumbers.We find some evidence that plumbers have higher preferences than consumers for heater characteristics that increase their profit margin.
Original languageEnglish
Place of PublicationTilburg
PublisherEconometrics
Number of pages29
Volume2003-26
Publication statusPublished - 2003

Publication series

NameCentER Discussion Paper
Volume2003-26

Keywords

  • consumers
  • demand
  • product information
  • advertising
  • investment
  • econometrics

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    Bartels, R., Fiebig, D. G., & van Soest, A. H. O. (2003). Consumers and Experts: An Econometric Analysis of the Demand for Water Heaters. (CentER Discussion Paper; Vol. 2003-26). Econometrics.