base period

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Base period

A particular period of time used for comparative purposes when measuring economic data.

Base Period

The period of time against which an index is measured. For example, suppose the base period is 2001 and the initial value of an index is 100. If the index is 150 in 2009, it means that the value of the index is 50% higher in 2009 than it was in 2001. It is also called the reference period.

base period

The time or period of time on which an index is based. Usually, the index is established at a value of 10 or 100 in the base year. The consumer price index of 177 in early 2002 indicated that consumer prices were 77% higher than during the base period of 1982-84. The Standard & Poor's 500 Stock Index of 1300 in early March 2002 indicated that, on average, a portfolio of blue chip stocks with a market value of $10 during the period 1941-43 (the base period) had a market value of $1,300 in early 2002. The portfolio of stocks making up the S&P 500 underwent substantial changes during the intervening years.

base period

The point in time that serves as a reference for calculating financial and economic data.The base period value is usually set at 1.0 or 100, called the benchmark, for purposes of comparison,and then all other periods are either greater or less than the benchmark.

References in periodicals archive ?
In contrast to the results of the June 2013 survey, where large banks reported an easing of price terms (such as financing rates/spreads), on balance, for all of the important types of counterparties included in the survey, the responses to the September 2013 survey did not indicate a significant change in price terms over the three-month reference period ending in August 2013.
The principles and reference periods as they are now will drive small and medium sized independent value-added lumber processing out of our communities across the country.
20 Because this study is based on the 4-month reference periods of Wave 1, the earnings data have been annualized.
It confirmed that all producers in England who have claimed any support payments for land and/or animals during the reference periods 2000-2002 will shortly receive an Information Statement (Form SP1) giving details of the historical element of this Single Farm Payment.
The new issuances of shares to Societe Generale will be based on reference periods of five consecutive trading days selected by Genset.

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