Spatio-temporal dynamics of security investments in an interdependent risk environment

► IDS games provide an effective model for risk assessment in interdependent systems. ► Spatio-temporal dynamics of the IDS game are studied in an EGT framework. ► Analysed impact of neighbourhood formation and network type on game dynamics. ► The neighbourhood configuration has greater impact on game dynamics than network type. ► Derived necessary and sufficient conditions for dominance under spatial constraints.