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英文文献：Determinants in the Composition of Investment and Structures in Uganda-决定在乌干达的投资和结构的组成
英文文献作者：Charles Augustine Abuka
英文文献摘要：
Using a unique data set that disaggregates equipment and structure components of capital formation, the paper examines how investment could respond to changing macroeconomic events. To do this, a stylized analysis of the performance of investment in equipment and structures over the period 1981/82 to 2005/2006 is presented. The findings show that the private investment component was sensitive to changes in relative prices. The analysis does not adequately support the existence of a low elasticity of substitution between the structure and equipment components of aggregate investment, as theory would suggest. However, when the data are disaggregated between public and private investment, a more plausible result is obtained in which the elasticity of substitution is somewhat higher for the private sector and correspondingly lower for the public sector. There is also evidence that higher risk in the economy tended to discourage long-term commitment to structures. Increases in aid flow led to a rise in the price of structures (with a large non-tradable investment good component) relative to that of equipment. The increase in structures prices was, therefore, consistent with propositions in boom sector literature. In particular, increased aid flow tended to positively impact on investment in structures relative to equipment, which is consistent with the observed significant levels of donor resources channelled by the government towards social infrastructure projects
使用一个独特的数据集，分解设备和资本形成的结构组成部分，论文研究了如何投资可以应对不断变化的宏观经济事件。为此，本文对1981/82年至2005/2006年期间设备和结构的投资性能进行了程式化分析。研究结果显示，私人投资部分对相对价格的变化较为敏感。正如理论所表明的那样，分析并不能充分支持总投资的结构和设备组成部分之间存在低替代弹性。但是，如果将数据分列在公共和私人投资之间，就会得到一种更可信的结果，即私营部门的替代弹性稍高，而公共部门的替代弹性则相应较低。还有证据表明，经济中较高的风险往往会阻碍对结构的长期承诺。援助流量的增加导致结构(具有大量非贸易投资的良好成分)的价格相对于设备的价格上升。因此，结构价格的上涨与繁荣领域的文献中的主张是一致的。特别是，援助流量的增加往往对相对于设备的结构投资产生积极影响，这与观察到的政府向社会基础设施项目输送大量捐助资源的情况是一致的
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