When filling in a consequence table, if all expected consequences can be assigned a monetary value, then cost benefit analysis may be applicable. Cost benefit analysis proceeds by drawing up a comprehensive list of the differences between the (estimated) state of the world with the policy or project under consideration, and the (estimated) state of the world without that policy or project. All the different impacts are valued using economic valuation techniques, and added together to give a net appreciation of the impact of the policy or project.