Aggregation and irrelevance in multi-sector models
Aggregation and irrelevance in multi-sector models
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DOI：
10.1016/s0304-3932(98)00057-9
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发表时间：
1999-04-01
影响因子：
4.1
通讯作者：
Dupor, B
中科院分区：
文献类型：
--
作者：
Dupor, B
本文研究了几个多部门模型中投入产出关系引起总产出波动的能力，包括Long和Plosser（1983）的模型。在这些模型中，每个部门产出的制造取决于其他部门的材料。这些相互联系提供了一种跨部门和跨时间传递冲击的机制。我们要问的是，这些多部门模型的总量相对于单部门模型的表现如何。我们提供的条件下，在这些模型中的聚集的二阶矩属性是相同的，他们的单部门同行。我们进一步证明，一个广泛的类的输入输出结构产生具有相同的二阶矩性质的聚合，在这类的输入输出结构提供了一个可怜的放大机制，部门冲击。(C)1999年由Elsevier Science B. V.出版，版权所有。JEL分类：E1; E32; C67。
This paper studies the ability of input-output relationships to generate fluctuations in aggregate output in several multi-sector models, including that of Long and Plosser (1983). In these models, the manufacture of each sector's output depends on other sectors for materials. These interconnections provide a mechanism for transmission of shocks across sectors and over time. We ask how aggregates from these multi-sector models behave relative to single-sector models. We provide conditions under which the second moment properties of aggregates in these models are the same as their single-sector counterparts. We further demonstrate that a broad class of input-output structures generate aggregates with identical second moment properties, and that the input-output structures in this class provide a poor amplification mechanism for sector shocks. (C) 1999 Published by Elsevier Science B.V. All rights reserved. JEL classification: E1; E32; C67.