Property regimes are based on fundamental values of the society or group that designs and reproduces them. This paper analyses the ethical underpinnings of Progressive Commons in comparison to the values underlying private property and traditional Commons. Against this backdrop, we discuss the potential of Progressive Commons to address major challenges in context of the twenty-first century economy. Seed Commons serve as an example. Our analysis shows that Progressive Commons respond to contemporary societal and environmental challenges by re-interpreting the classical (...) values underlying traditional private and common property regimes, turning them to sovereignty, re-democratization, and social-ecological sustainability in the global context. (shrink)