...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Quantifying Export Flows of Used Electronics: Advanced Methods to Resolve Used Goods within Trade Data
【24h】

Quantifying Export Flows of Used Electronics: Advanced Methods to Resolve Used Goods within Trade Data

机译：量化废旧电子产品的出口量：解决贸易数据中废旧货物的高级方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

There is limited convincing quantitative data on the export of used electronics from the United States (U.S.). Thus, we advance a methodology to quantify the export flows of whole units of used electronics from the U.S. using detailed export trade data, and demonstrate the methodology using laptops. Since used electronics are not explicitly identified in export trade data, we hypothesize that exports with a low unit value below a used-new threshold specific to a destination world region are used. The importance of using the most disaggregated trade data set available when resolving used and new goods is illustrated. Two detailed U.S. export trade data sets were combined to arrive at quantities and unit values for each port, mode of transport, month, trade partner country, and trade code. We add rigor to the determination of the used-new threshold by utilizing both the Neighborhood valley-emphasis method (NVEM) and published sales prices. This analysis found that 748 to 1199 thousand units of used laptops were exported from the U.S. in 2010, of which 78-81% are destined for non-OECD countries. Asia was found to be the largest destination of used laptop exports across all used-new threshold methods. Latin American and the Caribbean was the second largest recipient of these exports. North America and Europe also received used laptops from the U.S. Only a small fraction of used laptops was exported to Africa. However, these quantities are lower bound estimates because not all shipments of used laptops may be shipped using the proper laptop trade code. Still, this approach has the potential to give insight into the quantity and destinations of the exports if applied to all used electronics product types across a series of years.
机译：关于从美国（美国）出口废旧电子产品的令人信服的定量数据有限。因此，我们提出了一种方法，可以使用详细的出口贸易数据来量化来自美国的整个二手电子产品的出口流量，并演示使用笔记本电脑的方法。由于在出口贸易数据中未明确标识使用过的电子产品，因此我们假设使用的出口单价较低，低于特定于目的地世界区域的使用新阈值。说明了在解决旧货和新货时使用可用的最分散贸易数据集的重要性。合并了两个详细的美国出口贸易数据集，以得出每个港口的数量和单位价值，运输方式，月份，贸易伙伴国家和贸易代码。通过使用邻域谷底强调法（NVEM）和公开的销售价格，我们对使用新阈值的确定更加严格。该分析发现，2010年美国从美国出口了748至119.9万台二手笔记本电脑，其中78-81％的产品目的地在非经合组织国家。在所有使用新阈值的方法中，亚洲被认为是二手笔记本电脑出口的最大目的地。拉丁美洲和加勒比是这些出口的第二大接受国。北美和欧洲也从美国收到了二手笔记本电脑。只有一小部分二手笔记本电脑出口到了非洲。但是，这些数量是下界估计值，因为并非所有装运的二手笔记本电脑都可以使用正确的笔记本电脑贸易代码发货。但是，如果将这种方法应用于一系列使用过的所有二手电子产品类型，则有潜力深入了解出口的数量和目的地。

著录项

  • 来源
    《Environmental Science & Technology》 |2014年第6期|3263-3271|共9页
  • 作者

    Huabo Duan; T. Reed Miller; Jeremy Gregory; Randolph Kirchain;

  • 作者单位

    Materials System Laboratory, Engineering Systems Division, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States;

    Materials System Laboratory, Engineering Systems Division, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States;

    Materials System Laboratory, Engineering Systems Division, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States;

    Materials System Laboratory, Engineering Systems Division, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号