Ultimatum Game Calculator
Free online ultimatum game calculator. Enter your values and get instant results with the formula, step-by-step working, a worked example and FAQs — everything runs locally in your browser on Calcton, no signup required.
中文版:最后通牒博弈计算器
原理:最后通牒博弈里提议者分一笔钱 s 给响应者:响应者接受则按 s 分配,拒绝则双方得零。完全理性下响应者任何 s > 0 都该接受(聊胜于无),于是提议者出价趋近 0;但实验中出价中位数稳定在总额的 40% 到 50%,低出价常被以「惩罚不公平」为由拒绝——公平偏好改变了阈值 t。
步骤:① 输入总额、响应者的接受阈值与提议者的出价;② 点击判定;③ 查看成交结果与双方分配。
示例:V = 100、阈值 t = 30、出价 s = 35 时成交,提议者拿 65、响应者拿 35;若出价只有 25 则被拒,双方都得 0。
注意事项:阈值 t 是响应者的私人信息时博弈升级为信号问题;拒绝意味着响应者愿意花钱惩罚——这在纯自利模型里非理性,但在重复社会互动中是可维持声誉的投资;跨文化实验显示市场规模越大出价越接近公平分。
相关:纳什均衡计算器给出讨价还价的均衡框架;贴现计算器可扩展到轮流出价的破裂风险;期望值计算器评估出价被拒时的期望分配。
How to use the Ultimatum Game Calculator
- Fill in the inputs with your own numbers — every field shows what it expects.
- The result updates instantly as you type; no "Calculate" click needed.
- Read the result card for the main figure, the step-by-step formula, and practical notes.
Frequently asked questions
Is the Ultimatum Game Calculator free?
Yes — all math calculators on Calcton are free, with no sign-up required. Your inputs are processed in your browser and never sent to a server.
Is there a Chinese version of this tool?
Yes. Use the Chinese version link above — it is the same calculator with the interface in Simplified Chinese.
References
Formulas and benchmarks used by this calculator follow these published sources.
KevinContent LeadCalcton Editorial Team · Last updated 2026-10-05
Kevin maintains Calcton's formula verification and content: every calculator cites the standard it implements, worked examples are recomputed programmatically, and health benchmarks follow WHO and international guidelines.
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