Approval-preferential voting is problematical since it combines two different kinds of information that could by themselves lead to different choices. This article analyses the problem and studies a new proposal to deal with it. The existing methods are overviewed with special attention to several desirable properties that are not always met. Particular emphasis is made on certain rather unknown views of Condorcet about this subject. The proposed procedure definitely aims for a choice in the spirit of approval voting. However, it still makes use of the preferential information so as to improve the approval one. This is done by means of the path scores, in common to Schulze's method for preferential voting. The resulting method, that we call path-revised approval choice, is shown to enjoy several good properties. In particular, it fulfils in a well-defined sense Condorcet's latest view that a surely good option should prevail over a doubtfully best one.
翻译:批准-优先表决是困难的,因为它综合了两种不同的信息,它们本身可能导致不同的选择。本条款分析问题并研究新的建议来处理它。现有方法概览,特别注意一些并非总能满足的可取的属性。特别强调了Condorcet对这个主题的某些相当未知的观点。拟议的程序确实旨在本着批准投票的精神作出选择。然而,它仍然利用优惠信息来改进一个批准。这是通过路径分法进行的,与Schulze的优先投票方法相同。由此产生的方法,即我们称之为路径-修订批准选择法,显示享有若干良好的属性。特别是,它从一个明确意义上说,它符合Condorcet最近的观点,即肯定的好选项应当胜过一个令人怀疑的最佳选项。