author = {Verhofstadt, Ellen and Maertens, Miet},
      title = {{Can agricultural cooperatives reduce poverty?  Heterogeneous impact of cooperative membership on  farmers’ welfare in Rwanda}},
      series = {Bioeconomics Working Paper Series},
      pages = {25},
      year = {2014},
      note = {An updated version of this working paper is published  as:
Verhofstadt, E., Maertens, M. (2014). Can Agricultural  Cooperatives Reduce Poverty? Heterogeneous Impact of  Cooperative Membership on Farmers' Welfare in Rwanda.  Applied Economic Perspectives and Policy,
art.nr. online.},