Editorial
This article explains the definitions, comparison methods, and cautions for reading indicators such as employment statistics and the consumer price index, using hypothetical numbers.
Contents
News about employment statistics or the consumer price index comes up often. These are economic indicators, numbers that describe the state of the economy, and market participants pay close attention to them. But knowing only the names does not help much if you do not know what each one measures or how to read it. This article sets out the basics of reading some representative indicators. It does not mention current values, and every number used in the examples is hypothetical.
What an economic indicator is
An economic indicator expresses some aspect of the economy as a number, and it is published regularly by public bodies such as governments and central banks. Indicators are grouped by what they measure: the pace of activity, prices, employment, and so on.
The table lists some examples with what they measure and typical publishers. Names and publishers differ by country, so the examples here are mainly Japanese.
| Indicator | What it measures | Example publisher |
|---|---|---|
| Consumer price index (CPI) | Change in prices of goods and services households buy | Statistics Bureau, Ministry of Internal Affairs and Communications |
| Unemployment rate | Share of people seeking work who do not have a job | Statistics Bureau |
| Job-openings-to-applicants ratio | Number of job openings per job seeker | Ministry of Health, Labour and Welfare |
| GDP | Total value added produced domestically | Cabinet Office |
Abroad, the monthly US employment report, which includes nonfarm payrolls and the unemployment rate, is widely watched. For the latest figures and release schedules of any indicator, consult the publisher’s official website.
Reading the consumer price index
The CPI sets the price level at a base date to 100 and tracks later changes as an index. News reports usually quote the year-on-year change, which compares a month with the same month a year earlier.
Suppose the index is 100 in a given month and 102 in the same month a year later. The year-on-year change is (102 – 100) / 100 = 2%. A month-on-month comparison, against the previous month, is more affected by seasonal swings, so the two measures need to be used with care.
The CPI also comes in several variants, such as one excluding fresh food and one excluding both fresh food and energy. Leaving out items whose prices swing with the weather or supply is meant to make the underlying trend easier to see. When a report uses a word like “core”, check which items were excluded.
To think about what price increases mean for a household, here is a hypothetical case. If prices rose 2% every year, after 10 years the price level would be about 1.22 times as high (1.02^10 is roughly 1.219). Something costing 1,000,000 yen today would need roughly 1,220,000 yen. You can try different rates and periods in the compound interest calculator (Japanese). This is only a calculation example and not a forecast of future prices.
Reading employment indicators
The unemployment rate is the number of unemployed people divided by the labor force. In a hypothetical area with a labor force of 1,000 people, of whom 30 are looking for work without a job, the rate is 30 / 1,000 = 3%.
One caution is that a falling rate does not always mean conditions are improving. People who give up searching drop out of the labor force count, which can lower the measured rate by definition. This is why the number of employed people, the openings ratio, and wage trends are usually read together.
Employment data is often linked in discussion to prices, wages, and central bank policy. The role of central banks is covered in a separate article on monetary policy basics.
Common points when reading any indicator
- What it is compared with: month-on-month, year-on-year, or annualized. The comparison base changes the impression.
- Seasonal adjustment: whether the figure smooths seasonal patterns or shows the raw data.
- Possible revisions: numbers may be corrected after the first release.
- Gap from prior forecasts: markets tend to focus on the difference from expectations. Forecasts are not official figures and vary by source.
- Do not rely on one reading: a single month is noisy, so look at the path over several months to several years.
Another practical point is the release schedule. Most statistical agencies publish a calendar in advance, and the same indicator is typically released on a regular cycle, monthly or quarterly. Knowing when a number will come out helps you understand why news coverage clusters on certain days, and it also makes clear that the figures describe a period that has already ended. A release in the middle of a month, for example, usually reflects the previous month or quarter rather than the days just passed.
How to think about market reactions
Prices of stocks, currencies, and bonds sometimes move around the time of a release. Yet the same type of data can produce different reactions depending on the situation the market is in. A strong figure might coincide with a rise in share prices at one time and a fall at another, because views on interest rates also shift. Predicting the direction of prices from an indicator in advance is therefore difficult.
For long-term asset building, it can be more practical to hold a general knowledge of the economy while keeping to your own plan, rather than trading on each release. To compare the characteristics of different asset types under the same assumptions, you may also look at side-by-side comparisons of cash, stocks, and gold.
Finally, remember that official statistics describe averages for a whole economy. Your own situation, such as the prices of what you personally buy or the job market in your own field, may differ from the national figure, so an indicator is best treated as background rather than a verdict on your circumstances.
Points to consider and risks
An indicator captures one side of the economy and offers no guarantee about the future. Statistics have limits in survey methods and can be revised later. Short-term trading based on indicators is hard to do well and can lead to losses.
This article is a general guide to reading the data. It does not say anything about current economic or price levels or about what will happen next. Check the latest figures and definitions with official publishers. For how this site handles information, see the editorial policy, and for the limits of the content, the disclaimer.
About this article: This is a basic guide article. Our policy is to check the content against public sources. It is not investment advice. If you notice an error, please contact us.