"This paper derives the effort-maximizing contest rule and the optimal endogenous entry in a context where potential participants bear fixed entry costs. The organizer is allowed to design the contest under a fixed budget with two strategic instruments: the value of the prize purse and a...

Study on risk assessment of water resources system is the key to ensure the water resources security and its sustainable utilization. Under the principles of sustainable utilization of water resources, with the thinking of the risk, the Pansystems Observation-Control Model of Periphery is...