统计代写|经济统计代写Economic Statistics代考|ECON227

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统计代写|经济统计代写Economic Statistics代考|A Few Words about Future Plans and Conclusions

For over a century, the CPI has been constructed primarily using data collected by BLS staff. Big Data can provide information on real-time weighting, the missing fundamental piece from official price statistics for years. New alternative data sources have the potential to address many of the problems faced in recent years, including lower response rates and higher collection costs. After several years of work on various alternative data sources, BLS now has a goal to replace a significant portion of CPI direct collection with alternative data sources by 2024. BLS will prioritize alternative data for item categories and outlets based on a number of factors including the relative importance of the item, the number of quotes replaced, the cost of collection, the cost of alternative data, the accuracy of the current item index, respondent relationship with BLS, ease of implementation, response rates, and the concentration of the sample for a given item. For example, 15 establishments each account for more than 1,000 price quotations apiece. BLS will prioritize gaining cooperation for corporate data collection from large establishments such as these, as well as respondents in specific highly concentrated markets, and will also explore alternative data for item categories that may benefit in terms of accuracy and/or efficiency. In addition to agency-specific efforts, the BLS is working with our partner statistical agencies to collaborate on acquiring new data sources and exploring new uses for existing administrative and survey datasets. BLS is also sponsoring a new National Academy of Sciences Committee on National Statistics (CNSTAT) panel, comprised of academic and other experts, to investigate three key methodological issues, including how BLS should modify current CPI methodology to deal with the challenges presented by blending traditionally collected data with alternative data. ${ }^{10}$

As reflected in table $2 \mathrm{~A} .1$ at the end of this paper, there are numerous items to pursue, balancing index accuracy and operating costs. The table is organized in parallel to the CPI-U news release tables, with item categories aggregated to the highest level at which alternative data can be pursued. The legend at the end of the table provides information on the contents of each column. This is the current plan and will change as progress is made and experience gained. As of now, table $2 \mathrm{~A} .1$ indicates that the CPI has either current or potential planned “experience” in item categories to some degree, representing about 30 percent of the relative importance in the CPI-U.

统计代写|经济统计代写Economic Statistics代考|Retail Data Collection and Modernization Efforts

Retail trade is currently measured by the Census Bureau through monthly and annual surveys, as well as through a quinquennial Economic Census, and covers retail companies as defined by the North American Industry Classification System (NAICS). Retail businesses (NAICS Sector 44-45) may be chain retailers with many store locations, retailers with only one store location, or retailers operating solely online as e-commerce businesses. The retail businesses represented may or may not have paid employees. Table $3.1$ provides a summary of the Census Bureau’s retail trade programs. In years ending in “2” and “7,” the Economic Census collects detailed sales and product-level information as well as employment, payroll, and business characteristics for each physical store location that a retailer operates. Data collected by the Economic Census is used to update the sampling frame for the annual and monthly retail trade surveys. Each year, the Annual Retail Trade Survey (ARTS) collects annual sales, e-commerce sales, inventories, and expenses data as well as some retailer characteristics at the retailer level nationally by NAICS. The MRTS – a subsample of the ARTS – is a voluntary monthly survey done at the retailer level and collects sales and inventories. The timeliest measurement of the retail economy is the Advance Monthly Retail Trade Survey (MARTS), a subsample of the MRTS. This survey’s estimates are published approximately two weeks after month’s end and measure only sales.

统计代写|经济统计代写Economic Statistics代考|ECON227

统计代写|经济统计代写Economic Statistics代考|A Few Words about Future Plans and Conclusions

一个多世纪以来,CPI 主要使用 BLS 工作人员收集的数据构建。大数据可以提供实时加权信息,这是多年来官方价格统计数据中缺失的基本要素。新的替代数据源有可能解决近年来面临的许多问题,包括较低的响应率和较高的收集成本。经过几年对各种替代数据源的工作,BLS 现在的目标是到 2024 年用替代数据源取代大部分 CPI 直接收集。BLS 将根据多种因素优先考虑项目类别和网点的替代数据,包括项目的相对重要性,被替换的引用数量,收集成本,替代数据的成本,当前项目索引的准确性,受访者与 BLS 的关系、实施的难易程度、响应率以及给定项目的样本浓度。例如,15 家机构每家的报价超过 1,000 个。BLS 将优先与此类大型机构以及特定高度集中市场中的受访者合作收集企业数据,并将探索可能在准确性和/或效率方面受益的项目类别的替代数据。除了针对特定机构的努力外,BLS 还与我们的合作统计机构合作,共同获取新的数据源并探索现有行政和调查数据集的新用途。BLS 还赞助了一个新的国家科学院国家统计委员会 (CNSTAT) 小组,10

如表所示2 一个.1在本文的最后,有许多项目需要追求,平衡指标准确性和运营成本。该表与 CPI-U 新闻发布表平行组织,项目类别汇总到可以获取替代数据的最高级别。表格末尾的图例提供了有关每列内容的信息。这是当前的计划,随着进展和经验的积累会有所改变。截至目前,表2 一个.1表明 CPI 在某种程度上在项目类别中具有当前或潜在的计划“经验”,约占 CPI-U 中相对重要性的 30%。

统计代写|经济统计代写Economic Statistics代考|Retail Data Collection and Modernization Efforts

零售贸易目前由人口普查局通过月度和年度调查以及每五年一次的经济普查来衡量,涵盖北美行业分类系统 (NAICS) 定义的零售公司。零售企业(NAICS Sector 44-45)可能是拥有许多店铺位置的连锁零售商、只有一个店铺位置的零售商或仅作为电子商务企业在线运营的零售商。所代表的零售企业可能有也可能没有带薪员工。桌子3.1提供人口普查局零售贸易计划的摘要。在以“2”和“7”结尾的年份中,经济普查收集零售商经营的每个实体店位置的详细销售和产品级别信息以及就业、工资和业务特征。经济普查收集的数据用于更新年度和月度零售贸易调查的抽样框架。每年,年度零售贸易调查 (ARTS) 都会收集年度销售额、电子商务销售额、库存和费用数据,以及 NAICS 在全国零售商层面的一些零售商特征。MRTS——ARTS 的一个子样本——是在零售商层面进行的一项自愿每月调查,并收集销售和库存。零售经济最及时的衡量标准是提前月度零售贸易调查 (MARTS),MRTS 的子样本。该调查的估算值在月底后大约两周发布,仅衡量销售额。

统计代写|经济统计代写Economic Statistics代考

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