Subject(s): Natural resources, Communal -- Sustainable development -- Wealth inequality -- Environmental protection -- Collective action on commons - role of inequality, inequality and collective action, adoption of a new regulation for governance of common pool resources by heterogenous population, inequality and governance of water resource in Mexico and south India, managing pacific salmon- role of distributional conflicts in coastal Salish fisheries, heterogeneity and collective action for effort regulation- lessons from Senegalese small scale fisheries, wealth inequality and overexploitation of commons - field experiments in Colombia -- Collective action for forest conservation- heterogeneity, inequality, collective action and environment- evidence from firewood collection in Nepal, gender inequality, cooperation and environmental sustainability, inequality and environmental protection