Crowding out in blood donation: Was Titmuss right?  From AcaWiki
Jump to: navigation, search  Citation: Carl Mellstrom, Magnus
Johannesson (2008) Crowding out in blood donation: Was Titmuss
right?. Journal of the European Economic Association (RSS)  doi:
10.1162/JEEA.2008.6.4.845  Tagged: Economics (RSS)   Mellstrom
and Johannesson try to offer a very clean test of Titmuss'
crowding out hypothesis (not called that at the time) offered in
his book The gift relationship. In his book, Titmuss argues that
the introduction of monetary rewards can reduce the supply of
blood donors.  Mellstrom and Johannesson's paper presents a
field experiment designed to test this. They use three
treatments:    1. Subjects are given the opportunity to donate
blood without any special incentives.   2. Subjects are given
the opportunity to donate blood with a payment of 50 SEK (~ 7
USD).   3. Subjects who choose to give blood were give the
option of accepting 50 SEK or donating the same amount to
charity.  The findings in the full s