We investigate the effect of randomness in both relationships and decisions on the evolution of cooperation. Simulation results show, in such randomness' presence, the system evolves more frequently to a cooperative state than in its absence. Specifically, there is an optimal amount of randomness, which can induce the highest level of cooperation. The mechanism of randomness promoting cooperati...

This paper gives an overview of current and proposed crypto regulations in Europe, with attention to developments in the US, Japan and the OECD. It presents some key trends in the regulation of cryptography: growing awareness of criminal crypto use and of the dilemma of a crypto policy, and increasingly strong lobbies for key recovery and for privacy. The paper discusses several issues that any...

World is increasingly being divided into regions. The regional trading blocks are becoming more and more deepened and widened around the globe. The European Union (EU) has already reached a stage approximating to the trading relations usually found within a country rather than between the countries. The existence of regional economic groups, particularly in European and American continents, pos...