A.
Rules that promote predictability, stability and efficiency.
B.
Rules that promote flexibility learning and network responses that cut across traditional public boundaries
C.
The creation of a supercomputer called EcoHal9000 that is able to accurately predict and suggest the optimal response even before the crisis has occurred
D.
The authors suggest imitating the way that Uruguay, Paraguay and Argentina dealt with the unprecedented drought in their countries in 2008-2009.