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Activity Number:
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556
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Type:
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Topic Contributed
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Date/Time:
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Thursday, August 6, 2009 : 8:30 AM to 10:20 AM
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Sponsor:
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Section on Government Statistics
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| Abstract - #304352 |
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Title:
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An Overview of Coverage Adjustment for the 2007 Census of Agriculture
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Author(s):
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Matt Fetter*+
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Companies:
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National Agricultural Statistics Service
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Address:
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USDA, 1400 Independence Avenue, SW, Washington, DC, 20250,
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Keywords:
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census of agriculture ; coverage error ; regression estimator ; weight calibration
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Abstract:
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The National Agriculture Statistics Service (NASS) conducts a census of agricultural every five years. NASS maintains a list frame (referred to as the Census Mail List or simply the CML) and mails census forms to every name on the list. However, there are many farms in the U.S. that are not on this list, creating undercoverage. To alleviate the effect of undercoverage bias, NASS employs an area frame (AF) sample of farms. The AF contains all the land area for the contiguous states and Hawaii and thus has complete coverage of all farms in the U.S. (except Alaska which currently has no AF). NASS uses the AF sample to estimate the number of farms that are not on the CML. NASS uses this information to adjust the weights of the CML respondents. This paper explains the methodology used to make these adjustments.
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- The address information is for the authors that have a + after their name.
- Authors who are presenting talks have a * after their name.
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