Imachi Nkwu: Trade and the Commons
研究了19至20世纪初尼日利亚伊格博人面对棕榈产品贸易价值上升时，反而限制私有产权、转向集体收获的现象，并用奥斯特罗姆的社会-生态系统框架建模，对产权理论的传统观点提出挑战。
The conventional view is that an increase in the value of a natural resource can lead to private property over it. Many Igbo groups in Nigeria, however, curtailed private rights over palm trees in response to the palm produce trade of the nineteenth and early twentieth centuries. I use the Ostrom (2007, 2009) framework for analyzing social-ecological systems to guide the construction of a model of this transition. An increase in the resource price leads the owner to prefer communal harvesting, which simplifies monitoring against theft. I support this framework with evidence from colonial court records. “Palm cutting always cause palaver.” Obuba of Ububa, Nkwo Udara Civil Suit 111/37