Farmers show positive income effects participating in specialty coffee value chains: the study... Zurich University of Applied Sciences (ZHAW), Wädenswil, Switzerland, Sergio Urioste and Alvaro Irazoque, Slow Food Bolivia, La Paz, Bolivia ...2025.02.21 ... Zurich University of Applied Sciences (ZHAW), Wädenswil, Switzerland, Sergio Urioste and Alvaro Irazoque, Slow Food Bolivia, La Paz, Bolivia ...