base period


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base period

n
(Statistics) statistics a neutral period used as a standard for comparison in constructing an index to express a variable factor: 100 is usually taken as the index number for the variable in the base period
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

base period

That period of time for which factors were determined for use in current planning and programming.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
References in periodicals archive ?
The Information Technology Enterprise Solutions - 3 Services contract is valued at up to $12.1B over up to nine years, with a five-year base period, followed by four one-year option periods.
The task order has a one-year base period and four one-year option periods and a total potential task order value of USD 203.1 million.
Freed provisions were worth HUF13bn, an increase of 67 percent from the base period.
It records the change in prices between a base period and a variable period or between any two periods between the base period and the current period.
The BSPI records the change in prices between a base period and a variable period or between any two periods between the base period and the current period.
World sugar production is projected to grow by 2.1 percent per annum to reach 210 metric tons (Mt) by 2025, up nearly 39 Mt, 19 per cent above the average for the base period.
(1) For all four stations monthly precipitation records are available for the base period 1971-2000.
During the base period of the study, 16,071 postmenopausal women aged 65 and older were enrolled, and 12,290 completed the study.
The contract requires a USD10.0m annual license fee for a base period beginning April 1, 2014 and ending March 31, 2015 with two twelve-month option periods exercisable by the US Army.
Novavax (Nasdaq: NVAX), a clinical-stage biopharmaceutical company, has implemented a contract modification to extend the base period of performance of its current contract with the US Department of Health and Human Services, Biomedical Advanced Research and Development Authority for the advanced development of Novavax' recombinant seasonal and pandemic influenza vaccines, it was reported on Friday.
The forensic accountant requested various historical financial documents from the policyholder for the purpose of determining an appropriate base period from which to project the restaurant's operating results during the period of restoration.