In this study, we provide a characterization of the class of proportional bargaining solutions introduced by Kalai. Our result differs from earlier axiomatizations in that we use a property that we label individual disagreement point concavity. This property is a weakening of disagreement point concavity used by Chun and Thomson. An application illustrates the potential usefulness of our new property in a strategic setting.

中文翻译：

---

个体分歧点凹度与讨价还价问题

在这项研究中，我们提供了 Kalai 引入的比例谈判解决方案类别的特征。我们的结果与早期的公理化不同，因为我们使用了一个属性，我们将其标记为个体分歧点凹度。这一性质是对 Chun 和 Thomson 使用的分歧点凹度的弱化。一个应用程序说明了我们的新财产在战略环境中的潜在用途。