%0 Generic %A Huck, S. %A Normann, H.-T. %A Oechssler, J. %C London, UK %D 2004 %F discovery:14591 %I ESRC Centre for Economic Learning and Social Evolution %K Cooperation, prisoners' dilemma, adaptive dynamics %N 83 %T GLAD: a simple adaptive strategy that yields cooperation in dilemma games %U https://discovery.ucl.ac.uk/id/eprint/14591/ %X We introduce a simple adaptive rule where agents choose a cooperative effort on a grid. Agents can adjust this effort step by step and Gains and Losses Adjust Directions. We show that this process con- verges to the cooperative outcome in a two-person Prisoners' Dilemma game, and we provide simulations showing that the results also holds with a larger number of agents.