The book examines the role that the private sector can play in reducing poverty and marginality in Ethiopia by providing improved agricultural inputs to marginalized poor farmers. By creating a marginality map the author analyzes who and where the marginalized poor are. Data from a household survey about purchasing behavior, demand and needs indicates that this group can be a promising market segment for the private sector if adequate business models are applied. Yet, an analysis of the institutions governing agricultural input markets shows that investments by the private sector are discouraged by de facto monopolies of the government on crucial elements of the different supply chains, including seed breeding, fertilizer imports and finance.