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SUMMARY:On the value of tap water quality: Evidence from revealed and stat
 ed preference methods
DTSTART:20140325T121500
DTEND:20140325T130000
DTSTAMP:20260916T044021Z
UID:0ee2d31e17d6e6b728bb2350b54449dc39db058bc412b30fce20e957
CATEGORIES:Conferences - Seminars
DESCRIPTION:Bruno Lanz\nAbstract :\nWe use different sources of data to es
 timate the demand for qualitative aspects of tap water supply\, in particu
 lar its hardness and its aesthetic quality in terms of taste\, smell and a
 ppearance.\nOne source of data on households' preferences is the amount th
 ey spend on water softener devices and on substitutes for the aesthetic qu
 ality of tap water\, which mainly includes bottled water\, water filter de
 vices\, or adding squash or cordial before drinking. We survey more than 4
 \,500 households in England and Wales. We find that a substantial share of
  households spend substantial amounts of money on such devices or substitu
 tes. We also estimate the impact of better water quality on these expendit
 ures.\nNext to these revealed preferences\, we also elicit preferences thr
 ough discrete choice experiments. We address specifically a frequent probl
 em of such experiments\, the disproportionate frequency of status quo (SQ)
  choices. In our experiments\, we either improve or deteriorate water serv
 ices and environmental amenities \, so that the SQ is not necessarily the 
 least-cost option. We also vary other features of our experiments\, which 
 allows us to confirm the importance of choice task complexity and ‘prote
 st’ motives. More importantly\, our results suggest that SQ choices are 
 determined by preferences for unobserved SQ characteristics.
LOCATION:GR B3 30 http://plan.epfl.ch/?lang=fr&room=GRB330
STATUS:CONFIRMED
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