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Key Economic Indicators and Statistics
http://www.sina.com.cn 2004/07/19 16:24  新浪教育

  Key Economic Indicators and Statistics

  Key economic indicators and statistics are often quoted in the news as reasons for rallies and downward corrective moves in the financial markets. These economic data come from a variety of sources and measure different aspects of the state of the economy. Most of them are lagging indicators, while others are leading indicators. Financial market practitioners must have a good understanding of their definitions, reporting timing, usage, and which are the important ones being focused on by the prevailing markets. It is also very essential to understand market expectations vis-a-vis the reported figures.

  We will now look at the key economic indicators and statistics of the U.S., the world’s largest economy. The health of this economy has significant implications and impact on the global economy. Thus the key objective of many economists, strategists, investment advisors and analysts in global financial institutions is to determine the state of health of this economy. Even if one does not cover the U.S. markets (e.g. Asian Equity Sales professional), there is a need to understand what these figures mean as the fundamentals of Asian equities are correlated to the U.S. economy. For example, U.S. interest rates (influenced by U.S. inflation) sets the tone for global interest rate environment, and remains a critical component for determining equity prices; U.S. consumer spending figures also has implications for the Asian companies exporting to the U.S., since a significant proportion of exports eventually goes there. In addition to these indicators in the U.S., finance professionals covering the non-U.S. markets have to be aware that these economic indicators and statistics are similarly available (to different extent, comprehensiveness, quality, and timeliness) in various countries.

  Back to the U.S., there is a host of economic data being released by authorities on a weekly, monthly and quarterly basis. Here are some factors that determine the importance and relevance of the data:

  The data’s relevance to the overall economy. Data that give good insights to large segments of the economy will be keenly awaited. Retail sales numbers fall into this category as consumer spending accounts for approximately two-thirds of all U.S. economic activities.

  Timeliness of the information. Data for the most recent time period will be most keenly awaited, relevant, and have the strongest impact on the market.

  Reliability and accuracy. Economic data are subject to revisions after the release date due to the comprehensiveness of data. Thus, data that are frequently and significantly revised subsequent to its release will be used with greater caution and paid less attention by market participants.

  Below are some of the key US economic data releases.

  Gross National Product (GNP)

  Available quarterly, this is the sum of all goods produced by a nation, which includes consumption, investment, government purchases and net exports. In the U.S., of the four components above, consumption is the most significant, making up more than 50% of GNP. Analysts will look at the growth of GNP, its trends, quarter-on-quarter, year-on-year, by analyzing the various components in detail. GNP growth figures are also good indicators of potential inflationary pressures.

  The Purchasing Managers?Index(PMI)

  Published by the National Association of Purchasing Management(NAPM) monthly, this index correlates well with GNP growth. It provides the first comprehensive look at the manufacturing sector via its diffusion index, derived directly from purchasing executives in over 250 industrial companies. Twenty-one industries in 50 states are represented on the Business Survey Committee. An index reading above 50 implies expansion in the manufacturing sector. Although the PMI is basically concerned with the manufacturing sector, historically, this sector leads the overall economy.

  Employment

  Other than the GNP, employment is the most important monthly statistics released and the payroll employment figure which provides the first complete look at the economy for any given month. This report provides a wealth of information about virtually every sector of the economy. Key statistics in the employment report are important guides to understanding, monitoring, and forecasting economic conditions monthly and over longer periods:

  1. Civilian unemployment rate - the percentage of the civilian labor force(defined to include those who are either working or actively seeking work) that is unemployed. The unemployment rate is a lagging economic indicator, since most businesses will alter workers?hours or pay before they begin to add or drop employees. It is used as a gauge of how tight the labor market is.

  2. Change in total non-farm payroll employment - the number of payroll jobs added or lost between monthly surveys in the nonagricultural economy. Used by many in the financial markets as a shorthand approximation of the employment report’s overall tone, the change in total payroll jobs directly influences the calculation of personal income earned during the month.

  3. Change in manufacturing payroll employment - the number of payroll jobs added or lost in factory business. This figure can be broken down further, to reflect employment changes among production workers and in a variety of industries and be used to infer the path of industrial production.

  4. Average non-farm workweek - the average number of hours worked per week in nonagricultural business. This indicator directly affects the aggregate number of hours worked per week, which in turn can be used to gauge changes in the Gross Domestic Product (GDP).

  5. Average workweek in manufacturing - the average number of hours worked per week by people on factory payrolls. Changes in the factory workweek often lead to changes in manufacturing employment, as employers typically will adjust employees?hours before adding or cutting jobs. Shifts in the factory workweek include changes in overtime hours, which are also reported separately. The factory workweek is one of the ten components in the index of leading economic indicators

  This comprehensive employment statistics are vital information. With it, we would know how many people were employed in the manufacturing sector in a given month, how long they worked, and how much overtime they accrued. Using these figures, economists would be in a better position to project how much the economy produced during the month.

  Producer Price Index (PPI)

  For investors, keeping tabs on inflation is of the utmost importance. The pace of inflation influences the Federal Reserves?policies and actions, which in turn would have a major impact on the financial markets. The PPI would be the first indicator of inflation each month as it measures prices at the producer level including food 26%,energy resources 9%,consuming products 40%, productive assets 25% and capital equipment 25% is the first inflation report to hit the market each month. Of the components that make up PPI, the food and energy groups are the most volatile, and economists tend to isolate these groups to have a better idea of inflation’s true path.

  Consumer Price Index (CPI)

  In contrast to the PPI above, the monthly CPI measures the prices of both commodities and services, and is widely regarded as the most important measure of inflation that can significantly affect interest rates. To determine the items that go into the CPI, the Bureau of Labor Statistics conducts a survey of consumer expenditures about every 10 years. The three biggest constituents of the CPI are housing (42%), food (18%) and transportation (17%), and economists would typically concentrate on the CPI excluding the volatile food and energy components to get at the core rate of inflation.

  Retail Sales Report

  This is the first solid indication of strength or weakness in consumer spending on a monthly basis personal consumption in the U.S. represents over 50% of GNP. But it is important to note that this report contains data on purchases of goods only and not services. Another drawback of this report is that data is reported in nominal terms, and not adjusted for inflation. Probably the most important drawback is that retail sales figures are extremely volatile. Due to the lack of information to base a projection, the figure is frequently subject to massive revisions. Thus, users need to adopt this with caution.

  Housing Starts/Building Permits

  In the US, the housing sector accounts for about 27% of investment spending and 5% of the overall economy. One of the key influences on the residential housing market is the mortgage rate, which results from the overall interest rate environment. A sustained decline in housing starts to cause the economy to slow down and possibly head into recession. Expressed at an annual rate, this monthly series reports the total number of new private housing units on which the construction has begun and building permits have been issued at by 19,000 locations.

  Durable Goods Orders

  Durable goods orders provide market participants with insights on the manufacturing sector. This report measures the volume of orders placed with U.S. manufacturers for goods with a life expectancy of at least three years. These goods include primary metals, electrical and non-electrical machinery, consumer hard goods, transportation equipment (including aircrafts and automobiles), and military hardware .

  The figures for durable goods orders are very volatile. Analysts normally focus on the non-defense(civilian) component of orders, because bookings for military hardware are especially volatile from month to month and constitute a small part of the economy.

  The Index of Leading Economic Indicators (LEI)

  Designed to predict future aggregate economic activity, this index is a composite of several different indicators. Historically, the LEI reaches peaks and troughs earlier than the underlying turns in the economy and therefore is an important tool for forecasting and planning by analysts. As a rule of thumb, turning points in the economy are signaled by three consecutive monthly LEI changes in the same direction.

  The LEI’s individual components are chosen because of their economic significance, statistical adequacy, consistency of timing at cycle peaks and troughs, conformity to expansions and contractions, and prompt availability.

  The ten equally-weighted leading indicators are as follows:

  The financial and expectations indicators give indirect signals about upcoming changes in business activity, whereas the non-financial group provides more direct evidence about economic trends. The LEI index report seldom shocks the markets since most of the 10 components are known through prior releases. As a result, forecasts of the LEI’s performance are generally accurate.

  Merchandise Trade Balance

  Importance of the trade component of U.S. GNP is growing, thus the Merchandise Trade Balance is of increasing importance. This is derived from the difference between the exports and the imports of the U.S. And this number and its trend will have implications for the demand for US dollars and the health of its manufacturing base. Strong trade balance will indicate the need to buy US$ (thus strengthening the US$) and the healthy state of the export industries. The US has been running a trade deficit since the 1970s, and market focuses on the trend of this figure.

主要经济指标和统计数字

  主要经济指标和统计数字在新闻中频频出现,是分析人员解释金融市场上下波动震荡的重要指标。这些经济数据的来源不同,测量着经济领域的不同方面。在这些经济指标中,大部分属于滞后指标(lagging indicator),而另一些属于领先指标(leading indicator)。金融从业者应掌握各项金融指标的定义、公布时间、用途,以及哪些指标是当前市场所关注的。更重要的是,要清楚市场期望和指标数据之间的对比性。

  我们先来分析一下世界上最强势的经济体——美国的经济指标和统计数字。美国经济的健康与否在很大程度上影响着并作用于世界其他市场的经济。因此,全球性金融机构中许多经济学家、统计学者、投资咨询师和分析员的主要目标就是准确判断美国金融市场的“健康状况”。即使这个人的工作并没有直接涉及到美国市场(例如亚洲股票经纪人),他仍然需要了解上述的金融数据并对这些数据的变化保持高度敏感性,因为亚洲股票市场的根基与美国的经济密不可分。例如,美国的利息率(受美国通货膨胀的影响)为全世界的利息率定了一个基调,这个数字是决定股票价格的主导因素;此外,美国消费性开支的数字决定了亚洲公司向美国市场出口的数量,因为亚洲公司的绝大部分的出口产品都是销往美国市场的。除了这些美国的经济指标和统计数字,作为非美国市场的金融专业人士,也需要知道其他国家的类似数据(也许在深度、广度、质量和时间性方面有所差别)。

  再回到美国的经济数据问题。在美国,每周、每月、每个季度都公布大量的经济数据。这些数据的一些重要特征或相关性体现在以下的几个方面:

  与整体经济的相关性:应该敏锐地关注那些对大的经济板块有深刻影响力的数据。零售业数字就属于这种类型的数据,因为消费性经济大约占据了美国经济活动的三分之二。

  信息的及时性:最近公布的数据是最值得密切关注的,因为它们与经济的相关性最强,对市场的影响也最大。

  可靠性和精确性:由于经济数据的复杂多样性,所以即使数据公布后,仍会不断进行修正。对于那些发布后频繁修正的数据,在使用的时候一定要千万小心,这些更改频繁的数字往往会被市场参与者所忽视。

  下面是一些主要的美国经济数据:

  国民生产总值

  每个季度公布一次。这个数值总结了整个国家所生产出来的所有产品的总价值,其中包括消费、投资、政府采购和净出口四部分。在美国,以上四个组成部分中最重要的一项是消费额,它占到国民生产总值一半以上。分析家通过具体分析各种详细的数据资料,可以掌握每个季度、每年GNP的增长情况、趋势和走向。GNP还是反映潜在通货膨胀压力的指标。

  采购经理指数

  采购经理指数每月由全国采购经理协会(NAPM, National Association of Purchasing Management)公布,这个指数与GNP的增长具有很大相关性。这个指数直接从250多家采购经理处获得,通过它的动向指数(diffusion index)特性,提供了制造部门第一手的详尽资料。制造业调查委员会(Business Survey Committee)选定了50个州的21个行业作为代表。当总体指数高于50%的时候,意味着制造领域的生产扩张。尽管采购经理指数基本上反映的是制造业企业的发展状况,然而从历史的角度来看,制造业部门总体上仍然领导着整个美国经济。

  就业指数

  就业指数是指除了GNP指数以外最重要的月统计指标,通过它能初步了解美国某一月份的经济情况。这个指数能提供美国经济体中几乎所有部门的丰富信息。美国就业报告中的主要统计数字能帮助人们了解、监控、预测每个月乃至更长期的经济情况:

  1.城市失业人口比率:指的是城市失业人口占城市劳动力人口(包括正在工作的和正在积极寻找工作的人口)的百分比。失业率是一个滞后经济指标,因为大多数企业在开始增加或削减人员之前都将调整员工的工作小时数或工资。城市失业人口比率被用来衡量劳动力市场的严峻程度。

  2.非农业部门就业人口数的变化:指的是非农业经济领域每月就业人口的增加或者减少的数字。许多金融市场用这个数字来作就业报告总体基调的短期预测,就业人口数字直接影响到当月个人收入的统计数字。

  3.非农业部门平均每周工作小时数:指的是非农业部门每周平均工作小时数。这个指标直接影响到每周总工作小时数,进而可以用来衡量国民生产总值(GNP)的变化。

  4.制造业就业人口数的变化:指的是制造业领域每月就业人口的增加或者减少的数字。这个数字还可以进一步细分,来反映不同部门内生产工人的就业变化,从而能推断整个工业生产的变化情况。

  5.制造业部门平均每周工作小时数:指的是制造业部门每周平均工作小时数。这个指标的变化经常导致制造业部门的就业人数的变化,因为雇主在开始增加或削减人员之前都将调整员工的工作小时数。在公布制造业平均每周工作小时数的报告中,包括加班小时数变动指标——它也有单独的报告。制造业部门每周工作时间是美国十大领先经济指标之一。

  综合性的就业情况统计信息至关重要。有了这些信息,我们就能了解在某一给定的月份里美国制造业雇用人数的数目、他们的工作时间以及他们的加班时间。通过这些,经济学家可以更精确地预测出该月的经济产出值。

  生产者物价指数

  对于投资者而言,关注通货膨胀的变化是头等重要的大事。通货膨胀的变动与美联储相关经济政策的制定与实施息息相关,而这些政策对股票和证券市场会产生很大影响。生产者物价指数(PPI)是反映每月通货膨胀变化的第一层面的指数,因为它衡量的是商品生产者的生产价格水平(其构成包括食品26%、能源9%、消费成品40%生产性资产25%和资本设备25%)的变化,同时它也是每月公布的最早的有关通货膨胀的指标。在构成生产价格指数的成分中,食品和能源项目最容易波动,经济学家倾向于将这两部分单独列出以便更好地分析通货膨胀的实际走势。

  消费者物价指数

  同生产者物价指数相比,消费者物价指数不但衡量每月商品价格的变化,而且衡量服务产品价格的变化。这个指标被普遍认为是衡量通货膨胀最重要的指标,并对利息率的变化有极为重要的影响作用。为了确定消费者物价指数的构成项目,美国劳务统计局(Bureau of Labor Statistics)每10年就要作一次消费支出调查。构成这个指数最重要的三项是:住房(42%)、食品(18%)和交通(17%)。经济学家在统计时会排除容易波动的食品和能源项目,从中得到可以测量通货膨胀的核心数据。

  零售指数

  这是第一个详尽地反映每月消费者消费能力强弱的指数,因为在美国个人消费值占了国民生产总值(GNP)的一半以上。但是需要注意的是这个数据仅包括商品的消费数值,而不包括服务产品的消费值。它的另一个缺点是这个数据只是名义指数,并没有根据通货膨胀作出调整。它最大的一个缺点是零售数字的波动很大,从而缺乏足够的数据来预测物价水平,导致这个指数经常频繁更改。因此,一定要谨慎运用这个指数。

  新屋开工/营建许可

  在美国,房产投资占整个投资开支的27%,占整个经济总额比重的5%。影响住房建设市场的一个最重要的因素是房屋按揭利率,它是整个利息率环境下的一个产物。新屋开工数量的持续下降会引起整个经济的滑坡甚至导致经济的衰退。这个以年率表示的月度指标,统计了美国19000个城镇批准营建的和已经开工建设工程中的私人住宅房屋的数量。

  耐用品订单

  耐用品订单提供给市场参与者有关制造业各部门的信息。这个指数显示美国制造商所获得的使用寿命在3年以上的货物的订单数量。这些货物包括原始金属产品、电力或非电力机器、耐用消费品、交通工具(含飞机、汽车)以及军工产品。

  由于耐用品订单指标的变化很大,分析家一般只关注非军用(民用)耐用品订单(non-defense orders),因为军工产品订单每月的变化程度更大,而且只占经济总额很小的一部分。

  领先经济指标

  这个指标综合了一系列不同的经济指数,用于预测未来总体经济走势。历史上,LEI指标到达波峰和波谷的时间比经济市场的实际变化在时间上出现得早。因此,这个指标是分析学家作预测和计划的重要工具。经验之谈是:连续三个月LEI指数朝同一个方向变化是经济转折点的重要信号。

  根据各项经济指标的经济重要性、统计的充分性、在波峰和波谷的时间连贯性、收缩和扩张时的一致性和及时可得性等特点,把符合这些特点的项目列入领先经济指标(LEI)的范围内。

  10项等权(equal-weighted)领先经济指标如下:

  金融领域指标和期望指标间接地预测了市场的变化情况,而非金融领域指标给经济领域的变化趋势提供了更直接的证据。领先经济指标的发布并不会使市场受到震动,因为构成这个指标的10个项目中的大部分数据都提前公布了。领先经济指标所预测的各项内容基本上是准确的。

  商品贸易收支

  由于在美国,国内生产总值(GNP)构成中贸易项目的重要性越来越突出,因此商品贸易收支指标的重要性也随之增加。基本上,这个数字来自于美国进出口数量的差额。美国贸易收支差额的变化,将直接影响到对美元的需求,同时也影响到制造业的根本状况。贸易顺差的出现表示对美元的需求(即贸易盈余的增长将支持美元的汇价),出口型企业呈良好态势发展。自20世纪70年代以来,美国一直处于贸易逆差的状态,市场对商品贸易收支指标尤为关注。




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