Wage bargaining and employment revisited: separability and efficiency in collective bargaining*
研究了二维纳什谈判解在劳动力市场谈判模型中的可分解性，发现其可拆解为两个一维问题，且“无关替代独立性”公理是关键，有助于简化实际谈判。
Abstract We analyse the two‐dimensional Nash bargaining solution (NBS) by deploying the standard labour market negotiations model of McDonald and Solow. We show that the two‐dimensional bargaining problem can be decomposed into two one‐dimensional problems, such that the two solutions together replicate the solution of the two‐dimensional problem if the NBS is applied. The axiom of “independence of irrelevant alternatives” is shown to be crucial for this type of decomposability. This result has significant implications for actual negotiations because it allows for the decomposition of a multi‐dimensional bargaining problem into one‐dimensional problems – and thus helps to facilitate real‐world negotiations.