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81.
John Broome 《Theory and Decision》1994,37(3):333-338
The degree to which I want something often affects the amount of pleasure or other benefit it will bring me if I get it. This, in turn, should affect the degree to which I want it. In theJournal of Philosophy,89 (1992) 10–29, Anna Kusser and Wolfgang Spohn argue that decision theory cannot cope with this mutual determination of wants and benefits. This paper argues, to the contrary, that decision theory can cope with it easily. 相似文献
82.
徘徊在公正与功利之间的我国缓刑--对我国缓刑立法与司法的反思 总被引:1,自引:0,他引:1
被宣告缓刑的罪犯如果在缓刑考验期内没有被撤销缓刑,则原判刑罚不再执行,因此,缓刑是对有罪必罚、罚当其罪的反动,具有与生俱来的不公正性。这就要求立法和司法部门在制定和适用缓刑的时候,应当注意缓和、淡化缓刑的这一缺陷。然而,我国立法机关和司法部门并没有在这方面作出必要的努力,以致缓刑适用在我国经常展现出不公正的一面。缓刑的主要价值和目的均在于实现特殊预防,然而,一些法院在适用缓刑的时候,却经常忽视缓刑的这一价值和目的,致使缓刑适用并没有有效实现特殊预防的目的。为了充分发挥缓刑的功能,同时防止缓刑的适用过于随意以致丧失公正性,建议将缓刑适用条件明确化;增设缓刑适用的程序性规定;建立健全缓刑考察机构,将缓刑考验落到实处;增设关于缓刑负担的规定。 相似文献
83.
Empirically estimated demand systems frequently fail to satisfy the appropriate theoretical curvature conditions. We propose and estimate two demand systems for which these conditions can be imposed globally; the first is derived from a normalized quadratic reciprocal indirect utility function and the second is derived from a normalized quadratic expenditure function. The former is flexible if there are no restrictions on its free parameters, but loses flexibility if the curvature conditions need to be imposed. The latter is flexible, in the class of functions satisfying local money metric scaling, even if the curvature conditions need to be imposed. 相似文献
84.
The problem of selection of the best multivariate population is given a new formulation which does not involve reducing the populations to univariate quantities. This formulation's solution is developed for known, and (using the Heteroscedastic Method) also for unknown, variance-covariance matrices. Preference reversals and arbitrary nonlinear preference functions are explicitly allowed in this new theory 相似文献
85.
张学利 《西安建筑科技大学学报(社会科学版)》2008,27(1):49-52
国际工程项目投标对象的选择是一类典型的多目标决策问题。针对多目标、多标准决策中对多个选择项目的优劣判断较困难的情况下,提供了一种以效用作为统一各目标的评判标准的项目选择方法。效用理论作为科学决策的重要基本理论,在决策领域发挥着重要作用。基于效用理论及其对国际工程项目评价实用性分析,通过实例分析证明了其在国际工程中的应用价值。 相似文献
86.
A group of risk-averse members must choose among monetary risks and payoff-sharing rules. Departure from the status quo requires unanimous consent. Such groups drill for oil, bail out nations, and make hostile takeover bids. Assume agreement on probabilities. As is well known, if all members have identically shaped HARA utility functions, efficient group act-choices follow another such function independently of payoff sharing. We show that all other groups inevitably have complex efficient behavior, accepting gambles among individually unacceptable lotteries in almost every status quo position. We also develop proper risk aversion for groups, and treat disagreement on probabilities.Support of the Associates of the Harvard Business School (Pratt) and the Business and Government and Energy and Environmental Policy Centers (Zeckhauser) is gratefully acknowledged. We received helpful comments from Scott Johnson, Mark Machina, and a referee. Jay Patel provided assistance beyond the call of collegiality. 相似文献
87.
曹正汉 《浙江大学学报(人文社会科学版)》2005,35(6):45-51
人类效用极大化的方向至少有两个:一个方向是欲望满足的最大化,对应于西方文化里的生活态度与人生目标;另一个方向是身心痛苦的最小化,对应于中国传统文化里的生活态度与人生目标.在费孝通早年研究的云南禄村,小地主们过着一种整天闲混的生活,他们依靠雇工种田,自己尽可能不工作.这是一条追求身心痛苦最小化的人生道路,与资本主义精神格格不入.因此,解释人类行为及社会现象的经济学理论,需要与当事人的生活态度及文化传统相契合,故具有本土特征. 相似文献
88.
Recent experimental studies have focused on fitting parameterized functional forms to cumulative prospect theory's weighting function. This paper examines the behavioral implications of the functional forms and the estimated parameters. We find that none of the parameterizations can simultaneously account for gambling on unlikely gains and the Allais paradox behavior or other strong choice patterns from experiments. Parameter estimates that lead to reasonable amounts of insurance and gambling behavior tend to also generate large risk premia. Taken as a whole, the analysis suggests that the functional forms proposed in the literature are not suitable for generalization to applied settings. 相似文献
89.
Antoine Billot Alain Chateauneuf Itzhak Gilboa Jean-Marc Tallou 《Statistical Papers》2002,43(1):127-136
Choquet expected utility maximizers tend to behave in a more “cautious” way than Bayesian agents, i. e. expected utility
maximizers. We illustrate this phenomenon in the particular case of betting behavior. Specifically, consider agents who are
Choquet expected utility maximizers. Then, if the economy is large, Pareto optimal allocations provide full insurance if and
only if the agents share at least on prior, i. e., if the intersection of the core of the capacities representing their beliefs is non empty. In the expected utility case,
this is true only if they have a common prior.
Received: July 2000; revised version: May 2001 相似文献
90.
The method introduced here allows us to use a data set with a non-restricted number of outcomes, here 21. Hence, our method complements the other ones developed in the domain of the probability triangle. Individual parameters are estimated for expected utility and various non-expected utility theories. We use CRRA and CARA utility functions, both without and with the assumption of weakly concavity. Rank-dependent utility, prospective reference and cognitive consistency theories emerge from the others.An erratum to this article can be found at 相似文献