Multilateral Index Number Systems for International Price Comparisons: Properties, Existence and Uniqueness

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Tác giả: Gholamreza Hajargasht, Prasada Rao

Ngôn ngữ: eng

Ký hiệu phân loại: 029.5 [Unassigned]

Thông tin xuất bản: 2018

Mô tả vật lý:

Bộ sưu tập: Báo, Tạp chí

ID: 162371

Over the past five decades a number of multilateral index number systems have been proposed for spatial and cross-country price comparisons. These multilateral indexes are usually expressed as solutions to systems of linear or nonlinear equations. In this paper, we provide general theorems that can be used to establish necessary and sufficient conditions for the existence and uniqueness of the Geary-Khamis, IDB, Neary and Rao indexes as well as potential new systems including two generalized systems of index numbers. One of our main results is that the necessary and sufficient conditions for existence and uniqueness of solutions can often be stated in terms of graph-theoretic concepts and a verifiable condition based on observed quantities of commodities.
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