CPI Facts Brochure

CPIfactsbrochure.pdf

Telephone Point of Purchase Survey

CPI Facts Brochure

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The four surveys used in the
construction of the CPI
Telephone Point-of-Purchase Survey
(TPOPS) — This household survey, conducted

by the U.S. Census Bureau for BLS, provides the
sampling frame for the Commodities and Services
Pricing Survey. Roughly 30,000 households are
interviewed each year and asked to identify the
“points” at which they purchase consumer items.
This gives BLS a list of grocery stores, department
stores, doctor’s offices, theaters, internet sites,
shopping malls, etc., currently patronized by urban
consumers.
Consumer Expenditure Survey (CE) — This
household survey, conducted by the U.S. Census
Bureau for BLS, provides information on the
buying habits of American consumers. More
than 7,000 families from around the country
provide information each calendar quarter on their
spending habits in the Quarterly Interview Survey,
and another 7,000 families complete expense diaries
in the Diary Survey each year. The data collected
from these surveys are used to calculate the relative
importance of items in the market basket.
Housing Survey — This survey, conducted by
BLS, is used to obtain rent prices in each CPI
sampling area. Roughly 50,000 rental units are
priced every 6 months. Rent and the estimated
rental value of owned homes constitute more than
30 percent of the total CPI market basket.

Commodities and Services
Pricing Survey — This survey, conducted by

BLS, is used to obtain the prices of consumer goods
and services in retail establishments (identified
by TPOPS) for the market basket items. Each
month, BLS data collectors visit or call thousands
of retail stores, service establishments, and other
businesses all over the United States to obtain price
information on about 80,000 items.

Effects of the CPI

Facts
about the
Consumer
Price Index
(CPI)

	 The CPI can be used to measure and compare
	 consumers’ purchasing power in different time
	 periods. As prices increase, the purchasing
	 power of a consumer’s dollar declines, and as
	 prices decrease, the consumer’s purchasing
	 power increases.
	 The CPI is often used to adjust consumers’
	 income payments. For example, the CPI is
	 used to adjust Social Security benefits, to adjust
	 income eligibility levels for government assistance,
	 and to automatically provide cost-of-living wage
	 adjustments to millions of American workers.
	 The CPI affects more than 100 million persons
	 as a result of statutory action:
	 Over 50 million Social Security beneficiaries
	 About 20 million food stamp recipients in the 	
	 Supplemental Nutrition Assistance Program 		
	 (SNAP)
	 Around 4.2 million military and Federal
	 Civil Service retirees and survivors
	 30 million children who receive lunch 		
	 through the National School Lunch Program 	
	 (NSLP)
	 Over 2 million workers covered by collective
	 bargaining agreements that tie wages to
	 the CPI
	 The CPI is used to adjust the Federal income
	 tax brackets. These adjustments prevent inflation	 induced increases in tax rates, an effect called
	 “bracket creep.”

For further information contact:
Consumer Price Index www.bls.gov/cpi/

U.S. Bureau of Labor Statistics

When are CPI data released?

What is the market basket
of goods?

The CPI represents all goods and services
purchased for consumption by the population.
These expenditure items fit into hundreds of
subcategories arranged into eight major groups.
Major groups and examples of categories in
each are as follows:

•  FOOD AND BEVERAGES  – breakfast

What is the CPI?

The Consumer Price Index (CPI) is a measure
of the average change over time in the prices
paid by urban consumers for a market basket
of consumer goods and services. The CPI,
produced by the Bureau of Labor Statistics
(BLS), provides a way to measure the prices
paid by consumers from month to month.

What does the CPI measure?

The CPI measures inflation. It is an estimate
of the average increase (or decrease) in the
prices paid by the “average” urban consumer
in the United States for a representative
basket of consumer items. The basket includes
food and beverages, housing (including an
estimated rental value of owned homes),
apparel, transportation, medical care, recreation,
education and communication, and other goods
and services.

cereal, milk, coffee, chicken, wine, and full
service meals and snacks

•  HOUSING  – rent of primary residence,

owners’ equivalent rent, fuel oil, and bedroom
furniture

•  APPAREL  – men’s shirts and sweaters,
women’s dresses, and jewelry

•  TRANSPORTATION  – new vehicles, airline
fares, gasoline, and motor vehicle insurance

•  MEDICAL CARE  – prescription drugs

and medical supplies, physicians’ services,
eyeglasses and eye care, and hospital services

•  RECREATION  – televisions, toys, pets and

pet products, sports equipment, and admissions

•  EDUCATION AND COMMUNICATION  –

college tuition, postage, telephone services, and
computer software and accessories

•  OTHER GOODS AND SERVICES  – tobacco

and smoking products, haircuts and other
personal services, and funeral expenses

The CPI is released every month, usually during
the third week of the month. For example,
the CPI released the third week in March
represents data for February of that year. BLS
also releases annual average indexes for the
previous calendar year every January.

Are CPI data published only at
the national level, or are regional
level data available, too?

CPI data are available at national, regional, and
metropolitan-area levels. BLS publishes the
national (or U.S. City Average) CPI monthly.
Indexes based on census regions and three
major metropolitan areas (Los Angeles, New
York City, and Chicago) also are published
monthly. Further, BLS publishes CPI indexes
for 11 other major metropolitan areas every
other month.

Why is the CPI important?

The CPI is the most widely used measure
of inflation and is sometimes viewed as an
indicator of the effectiveness of government
economic policy. The CPI provides information
about price change in the Nation’s economy to
government, business, labor, and other private
citizens, who use the CPI as a guide in making
economic decisions. In addition, the CPI may
be used by policy makers as a consideration in
monetary and fiscal policy decisions. The CPI
and its components also are used to adjust other
economic series for price change and to translate
these series into inflation-free dollars. Examples
of series adjusted by the CPI include retail sales,
hourly wages and earnings, and components of
the National Income and Product Accounts,
such as the Gross Domestic Product (GDP).

What do the Consumer Expenditure
(CE) Diary Survey and Quarterly
Interview Survey provide for
the CPI?
The Consumer Expenditure Diary Survey and
Quarterly Interview Survey provide BLS with
expenditure data needed to construct the market
basket of goods and services for the CPI. BLS
then selects goods and services based on this
data, and the expenditure data are used with the
prices collected to calculate the CPI.


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