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Effect of the depreciation of public goods in spatial public goods games

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Shi, D.-M., Zhuang, Y., & Wang, B.-H. (2012). Effect of the depreciation of public goods in spatial public goods games. Physica A: Statistical Mechanics and its Applications, 391(4), 1636-1641. doi:10.1016/j.physa.2011.10.006.


Cite as: https://hdl.handle.net/21.11116/0000-0001-889A-8
Abstract
In this work, the depreciation effect of public goods is considered in the public goods games, which is realized by rescaling the multiplication factor of each group as (). It is assumed that each individual enjoys the full profit of the public goods if all the players of this group are cooperators. Otherwise, the value of public goods is reduced to . It is found that compared with the original version (), the emergence of cooperation is remarkably promoted for , and there exist intermediate values of inducing the best cooperation. Particularly, there exists a range of inducing the highest cooperative level, and this range of broadens as increases. It is further presented that the variation of cooperator density with noise has close relations with the values of and , and cooperation at an intermediate value of is most tolerant to noise.