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Price as a signal : on intrinsic motivation and crowding-out
Bolle, Friedel, (2007)
An investigation into blood donation intentions among non-donors
Reid, Mike, (2008)
A price is a signal : on intrinsic motivation, crowding-out, and crowding-in
Bolle, Friedel, (2009)
Last best gifts : altruism and the market for human blood and organs
Healy, Kieran, (2006)
Healy, Kieran Joseph, (2006)
Moral categories in the financial crisis
Fourcade, Marion, (2013)