If you have ever wondered what informs decision making by Government this diagram sets ‘science’ and ‘evidence’ in context; these are just two of the things that influence decision making. Dave Morris (Cefas) described this at the CMS Evidence conference in July 2013. This diagram is useful in a variety of contexts in understanding decision making.
This is the full reference for the circle diagram of pressures on policy: Piers Larcombe, David J. Morris and Carl M. O’Brien (2008). In recognition of inevitable uncertainties: from fisheries management to managing marine resources. In Advances in Fisheries Science (Eds. Payne, A, Cotter, J. & Potter, T). 50 years on from Beverton and Holt, pp. 491-534. Blackwell Publishing, Oxford. xxi + 547 pp