We study when two-member household choice behavior is compatible with Pareto optimality. We ask when an external observer of household choices, who does not know the individuals’ preferences, can rationalize the choices as being Pareto-optimal. Our main contribution is to reduce the problem of rationalization to a graph-coloring problem. As a result, we obtain simple tests for Pareto optimal ch...

The logistics industry is an important driving force for national economic development, and the cost of logistics is an important factor to measure the level of development of the logistics industry. The economical and social benefits due to the effective logistics cost control are notable, and it becomes the most direct means in extending the third-part profit. Therefore, how to implement the ...

This article explores the use of the best interest standard in the context of third-party interventions in ongoing parent-child relationships. I start by examining the history of the best interest standard and show that it has had different meanings in different eras. I then address the nature of the family and the question of whether interests beyond those addressed in the child's best interes...

Are Plurality voting, the Kemeny rule, Approval voting, and the Borda Mean Dichotomy rule all versions of the same voting rule? Yes, in a sense. In an extension of work by Barthélemy and Monjardet [3], we consider functions F that assign real number scoring weights F (R1, R2) to pairs of binary relations on a finite set A of alternatives, serving as symmetric measures of similarity between R1 a...

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An autocatalytic reaction in which the reaction product serves as a catalyst to produce more of itself and to suppress production of its enantiomer serves as a mechanistic model for the evolution of homochirality. The Soai reaction provided experimental confirmation of this concept, nearly 50 years after it was first proposed. This Perspective offers a rationalization of the Soai autocatalytic ...