Tubene, StephanHanson, JimLarge retailers often prefer to buy produce from large farms, leaving the owners of smaller farms in search of alternative markets. Drs. Stephan Tubene and Jim Hanson of the University of Maryland took a close look at the ways in which Pennsylvania farmers have been using wholesale produce auctions to sustain and increase their local markets.en-USproduce auctionsfarmersPennsylvaniawholesale produceMaking Grassroot Agricultural Auctions WorkTechnical Report