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Provedor de dados:  31
País:  United States
Título:  Data Aggregation and Information Loss
Autores:  McKee, Gregory J.
Miljkovic, Dragan
Data:  2007-06-27
Ano:  2007
Palavras-chave:  Strawberry
Price
Cointegration
Granger causality
Average price
Research Methods/ Statistical Methods
Resumo:  Analysts often use a single average or otherwise aggregated price series to represent several geographic or product markets even when disaggregate data are available. We hypothesize that such an approach may not be appropriate under some circumstances, such as when only long-term relationships hold among price series or when homogeneous but relatively perishable products are considered. This question is of particular relevance in agriculture because of seasonality in production and harvest across various production regions, and the effect of changes in demand as substitute crops become available. We analyze this question in the context of fresh strawberry production. We find that in the case of the strawberry market, aggregate series are appropriate for long-term decision analysis, but some information loss occurs when conducting short-term decision analysis.
Tipo:  Conference Paper or Presentation
Idioma:  Inglês
Identificador:  26423

http://purl.umn.edu/9843
Editor:  AgEcon Search
Relação:  American Agricultural Economics Association>2007 Annual Meeting, July 29-August 1, 2007, Portland, Oregon
Selected Paper 174289
Formato:  23

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