The Consumer Price Index for All Urban Consumers (CPI-U) for Philadelphia-Wilmington-Atlantic City advanced 0.5 percent from June to August, the U.S. Bureau of Labor Statistics reported today. Regional Commissioner Sheila Watkins noted that the recent advance was led by an increase in the all items less food and energy index (0.4 percent). The food index and energy index also increased, up 0.8 percent and 0.7 percent, respectively. (Data in this report are not seasonally adjusted. Accordingly, month-to-month changes may reflect the impact of seasonal influences.)

Over the last 12 months, the CPI-U increased 1.4 percent. (See chart 1 and table A.) The over-the-year rise was due mostly to increases in the all items less food and energy index (1.1 percent) and the energy index (7.1 percent). Prices for food also rose since August 2016, up 0.5 percent. (See table 1.)

Food

Following a 1.1-percent decline from April to June, the food index increased 0.8 percent over the last two months. Prices for food at home advanced 0.8 percent, and those for food away from home rose 0.7 percent since June. Within the food at home component, higher prices for various items including chicken and uncooked beef steaks were moderated by lower prices for frozen and freeze dried prepared foods, among others.

Over the year, the food index increased 0.5 percent. Higher prices for food away from home (1.8 percent) were slightly offset by lower prices for food at home (-0.4 percent).

Energy

The energy index, which includes prices for household and transportation fuels, rose 0.7 percent since June. This was due largely to higher prices for gasoline, up 2.8 percent over the last two months. Prices for utility (piped) gas service also increased since June, up 0.4 percent, while those for electricity decreased, down 0.9 percent.

Over the year, the energy index rose 7.1 percent, led by an 18.1-percent advance in gasoline prices. Prices were also higher for utility (piped) gas service (7.2 percent), while those for electricity declined 3.2 percent over the year.

All items less food and energy

The index for all items less food and energy increased 0.4 percent from June to August. Higher prices for shelter (0.8 percent), along with those for apparel (2.9 percent), were moderated by lower prices for household furnishings and operations (-0.7 percent), among others, since June.

Since August 2016, the index for all items less food and energy increased 1.1 percent. This was largely due to higher prices for shelter (2.3 percent). Lower prices for various items including education and communication (-3.2 percent), moderated the 12-month increase in the all items less food and energy index.

Table A. Philadelphia CPI-U 2-month and 12-month percent changes, all items index, not seasonally adjusted

Month	2013		2014		2015		2016		2017
	2-month	12-month	2-month	12-month	2-month	12-month	2-month	12-month	2-month	12-month
February	0.7	1.8	0.5	1.0	-0.2	-0.1	0.3	0.3	0.7	2.1
April	0.1	1.1	0.5	1.4	0.5	0.0	0.9	0.6	0.0	1.3
June	0.3	1.5	0.6	1.8	0.8	0.2	0.3	0.1	-0.3	0.7
August	0.5	1.1	0.0	1.3	-0.5	-0.3	-0.2	0.3	0.5	1.4
October	-0.4	0.3	-0.1	1.6	-0.3	-0.5	0.6	1.3
December	0.1	1.2	-0.8	0.6	-0.6	-0.2	-0.1	1.7

The Consumer Price Index for October 2017 is scheduled to be released Wednesday, November 15, 2017 at 8:30 am (ET).

Technical Note

The Consumer Price Index for Philadelphia-Wilmington-Atlantic City is published bi-monthly. The Consumer Price Index (CPI) is a measure of the average change in prices over time in a fixed market basket of goods and services. The Bureau of Labor Statistics publishes CPIs for two population groups: (1) a CPI for All Urban Consumers (CPI-U) which covers approximately 89 percent of the total population and (2) a CPI for Urban Wage Earners and Clerical Workers (CPI-W) which covers approximately 28 percent of the total population. The CPI-U includes, in addition to wage earners and clerical workers, groups such as professional, managerial, and technical workers, the self-employed, short-term workers, the unemployed, and retirees and others not in the labor force.

The CPI is based on prices of food, clothing, shelter, and fuels, transportation fares, charges for doctors' and dentists' services, drugs, and the other goods and services that people buy for day-to-day living. Each month, prices are collected in 87 urban areas across the country from about 4,000 housing units and approximately 26,000 retail establishments--department stores, supermarkets, hospitals, filling stations, and other types of stores and service establishments. All taxes directly associated with the purchase and use of items are included in the index.

The index measures price changes from a designated reference date (1982-84) that equals 100.0. An increase of 16.5 percent, for example, is shown as 116.5. This change can also be expressed in dollars as follows: the price of a base period "market basket" of goods and services in the CPI has risen from $10 in 1982-84 to $11.65. For further details see the CPI home page on the Internet at www.bls.gov/cpi and the BLS Handbook of Methods, Chapter 17, The Consumer Price Index, available on the Internet at www.bls.gov/opub/hom/pdf/homch17.pdf.

In calculating the index, price changes for the various items in each location are averaged together with weights that represent their importance in the spending of the appropriate population group. Local data are then combined to obtain a U.S. city average. Because the sample size of a local area is smaller, the local area index is subject to substantially more sampling and other measurement error than the national index. In addition, local indexes are not adjusted for seasonal influences. As a result, local area indexes show greater volatility than the national index, although their long-term trends are quite similar. Note: Area indexes do not measure differences in the level of prices between cities; they only measure the average change in prices for each area since the base period.

The Philadelphia-Wilmington-Atlantic City, Pa.-N.J.-Del.-Md., Consolidated Metropolitan Statistical Area includes Bucks, Chester, Delaware, Montgomery, and Philadelphia Counties in Pennsylvania; Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester, and Salem Counties in New Jersey; New Castle County in Delaware; and Cecil County in Maryland.

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