After society has decided on a social choice rule-a recipe for choosing the optimal social alternative (or alternatives) on the basis of individuals' preferences over the set of all social alternatives-the social planner still faces the problem of how to implement that rule. In particular, the planner may not know individuals' preferences. He might attempt to elicit them, but this may not be an easy task, even abstracting from communication costs. If individuals know the rule by which the planner selects alternatives on the basis of reported preferences, they may have an incentive to report falsely.
Eric MaskinRelated topics
alternative attempt basis choice choosing communication decided easy implement incentive might particular planner problem recipe report rule set social society task optimal preferences costsRelated quotes
The formal structure of a decision problem in any area can be put into four parts: ( 1 ) the choice of an objective function denning the relative desirability of different outcomes; (2) specification of the policy alternatives which are available to the agent, or decisionmaker, (3) specification of the model, that is, empirical relations that link the objective function, or the variables that enter into it, with the policy alternatives and possibly other variables; and (4) computational methods for choosing among the policy alternatives that one which performs best as measured by the objective function.
Kenneth Arrow
I recognize that the findings in our report may leave some to wonder how the department's findings can differ so sharply from some of the initial, widely reported accounts of what transpired. I want to emphasize that the strength and integrity of America's justice system has always rested on its ability to deliver impartial results in precisely these types of difficult circumstances – adhering strictly to the facts and the law, regardless of assumptions. Yet it remains not only valid – but essential – to question how such a strong alternative version of events was able to take hold so swiftly, and be accepted so readily.
Eric Holder
Since it cannot be overlooked by the Doctrine of Knowledge that Actual Knowledge does by no means present itself as a Unity, such as is assumed above but as a multiplicity, there is consequently a second task imposed upon it, - that of setting forth the ground of this apparent Multiplicity. It is of course understood that this ground is not to be derived from any outward source, but must be shown to be contained in the essential Nature of Knowledge itself as such; - and that therefore this problem, although apparently two-fold, is yet but one and the same, - namely, to set forth the essential Nature of Knowledge.
Johann Gottlieb Fichte
In 1991, I crossed party lines and supported the use of force against Saddam Hussein, but he was allowed to survive his defeat as the result of a calculation we all had reason to deeply regret for the ensuing decade. And we still do. So this time, if we resort to force, we must absolutely get it right. It must be an action set up carefully and on the basis of the most realistic concepts. Failure cannot be an option, which means that we must be prepared to go the limit. And wishful thinking based on best-case scenarios or excessively literal transfers of recent experience to different conditions would be a recipe for disaster.
Al Gore
It should be clear by now that a nation can be no stronger abroad than she is at home. Only an America which practices what it preaches about equal rights and social justice will be respected by those whose choice affects our future. Only an America which has fully educated its citizens is fully capable of tackling the complex problems and perceiving the hidden dangers of the world in which we live. And only an America which is growing and prospering economically can sustain the worldwide defenses of freedom, while demonstrating to all concerned the opportunities of our system and society.
John F. Kennedy
