Corrigendum to “Adoption and Frequency of Precision Soil Testing in Cotton Production”

The authors regret that the above paper contained an error in the calculation of the survey expansion weights (Lambert et al., 2014, p. 110). Using the notation of the paper, the expansion factor for the lth stratum was introduced as wl =agbh=ngh, where g indexes states and h indexes farm size class. This is in fact the correct expression if Sinkhorn’s (1964) RAS method were used. However, Ireland and Kullback’s (1968) cross-entropy method was used to estimate the expansion factors, and division of variables a and b by the survey response frequency (ngh) is unnecessary. The typographical error has no bearing on the empirical analysis. References


Issue Date:
2014
Publication Type:
Journal Article
Record Identifier:
http://ageconsearch.umn.edu/record/186595
PURL Identifier:
http://purl.umn.edu/186595
Published in:
Journal of Agricultural and Resource Economics, Volume 39, Number 2
Page range:
291-291
Total Pages:
1
Series Statement:
Volume 39
2




 Record created 2017-04-01, last modified 2018-01-22

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