Payroll employment increases by 164,000 in April; unemployment rate edges down to 3.9%

[mahatmakanejeeves]

25. For more information on the CPI, start here:

From April 2015:

CPI for all items rises 0.2% as gasoline and shelter prices rise; food prices decline

http://www.bls.gov/news.release/cpi.nr0.htm

I added the bolding.

Cryptoad points out the significance of the CPI-W. It is used to calculate Social Security's Cost-of-Living Adjustment (COLA):

Based on the increase in the Consumer Price Index (CPI-W) from the third quarter of 2013 through the third quarter of 2014, Social Security and Supplemental Security Income (SSI) beneficiaries will receive a 1.7 percent COLA for 2015.

Consumer Price Index Frequently Asked Questions (FAQs)

What goods and services does the CPI cover?

The CPI represents all goods and services purchased for consumption by the reference population (U or W) BLS has classified all expenditure items into more than 200 categories, arranged into eight major groups. Major groups and examples of categories in each are as follows:
FOOD AND BEVERAGES (breakfast cereal, milk, coffee, chicken, wine, full service meals, snacks)
HOUSING (rent of primary residence, owners' equivalent rent, fuel oil, bedroom furniture)
APPAREL (men's shirts and sweaters, women's dresses, jewelry)
TRANSPORTATION (new vehicles, airline fares, gasoline, motor vehicle insurance)
MEDICAL CARE (prescription drugs and medical supplies, physicians' services, eyeglasses and eye care, hospital services)
RECREATION (televisions, toys, pets and pet products, sports equipment, admissions);
EDUCATION AND COMMUNICATION (college tuition, postage, telephone services, computer software and accessories);
OTHER GOODS AND SERVICES (tobacco and smoking products, haircuts and other personal services, funeral expenses).

The CPI-U is used by the Treasury Department to set the interest rates on I Bonds.

I Savings Bonds

How do I Bonds earn interest?

Interest on an I Bond rates is a combination of two rates:
1.A fixed rate of return which remains the same throughout the life of the I Bond

and
2.A variable inflation rate which we calculate twice a year, based on changes in the nonseasonally adjusted Consumer Price Index for all Urban Consumers (CPI-U) for all items, including food and energy (CPI-U for March compared with the CPI-U for September of the same year, and then CPI-U for September compared with the CPI-U for March of the following year).

And here:

Consumer Price Index Frequently Asked Questions (FAQs)

There's more than one CPI. I'm looking for an old post about this subject. Here are a few:

July 2015: CPI for all items rises 0.3% in June as gasoline, shelter, food indexes rise

April 2015: CPI for all items rises 0.2% as gasoline and shelter prices rise; food prices decline

Other links:

Consumer Price Index Frequently Asked Questions (FAQs)

CPI For Urban Wage Earners And Clerical Workers

The Bureau of Labor Statistics (BLS) publishes the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) on a monthly basis. We use the CPI-W to annually adjust benefits paid to Social Security beneficiaries and Supplemental Security Income recipients.

Back to the Consumer Price Index Summary:

Technical Note

Brief Explanation of the CPI

The Consumer Price Index (CPI) measures the change in prices paid by consumers for goods and services. The CPI reflects spending patterns for each of two population groups: all urban consumers and urban wage earners and clerical workers. The all urban consumer group represents about 89 percent of the total U.S. population. It is based on the expenditures of almost all residents of urban or metropolitan areas, including professionals, the self-employed, the poor, the unemployed, and retired people, as well as urban wage earners and clerical workers. Not included in the CPI are the spending patterns of people living in rural nonmetropolitan areas, farming families, people in the Armed Forces, and those in institutions, such as prisons and mental hospitals. Consumer inflation for all urban consumers is measured by two indexes, namely, the Consumer Price Index for All Urban Consumers (CPI-U) and the Chained Consumer Price Index for All Urban Consumers (C-CPI-U).


The Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) is based on the expenditures of households included in the CPI-U definition that meet two requirements: more than one-half of the household's income must come from clerical or wage occupations, and at least one of the household's earners must have been employed for at least 37 weeks during the previous 12 months. The CPI-W population represents about 28 percent of the total U.S. population and is a subset of the CPI-U population.