Although the evidence is still limited, a growing body of research suggests music may have beneficial effects for diseases such as Parkinson’s.
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Edited by Simon A. Levin, Princeton University, Princeton, NJ, and approved September 29, 2016 (received for review June 7, 2016)
Article Figures & SI
Figures
- Fig. 1.
In this prisoners’ dilemma/public goods game, there is a unique Nash equilibrium at which all players play defect/contribute nothing.
- Fig. 2.
In this treaty participation game, there is a unique Nash equilibrium at
- Fig. 3.
In this weakest link game, there are two Nash equilibria, and one of which yields a higher payoff for achieving eradication.
- Fig. 4.
In this catastrophe avoidance game, there are two Nash equilibria, with selection of the better one, on the right, requiring coordination.
- Fig. 5.
The gray lines show the public goods game played against the background of free trade. The black lines show the same game subject to a trade ban. In this game, there is a tipping point at
Tables
Equilibrium properties Coordination Dilemma/public goods Treaty/chicken Weakest link Catastrophe avoidance Trade restrictions Unique? Yes Yes No No No Dominant strategy? Yes No No No No First best efficient? No No Yes Possibly Yes Intermediately efficient? No Yes No Possibly No Symmetric? Yes No Yes Probably Yes
Multilateral cooperation and the environment
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