EconPapers    
Economics at your fingertips  
 

The Value of Public Information in Storable Commodity Markets: Application to the Soybean Market

La valeur de l'information publique dans les marchés de matières premières stockables: Application au marché du soja

Christophe Gouel

Post-Print from HAL

Abstract: This article provides a framework to estimate the potential effects and benefits of the provision of market information in storable commodity markets. This framework is applied to the case of production forecasts for the soybean market. A rational expectations storage model of the global soybean market accounting for both inter-annual and intra-annual market dynamics is built. Shocks that occur between planting and harvesting affect the size of the potential harvest. Estimates of the size of these shocks are reported publicly, and affect the market equilibrium through adjustments to stock levels. By varying counterfactually the observability of seasonal shocks, we can estimate the efficiency gains related to the availability of advance information. They are equivalent to 2% of storage costs; the reduction of stock levels being the main channel explaining the welfare gains. The presence of advance information has a limited effect on inter-annual price volatility but redistributes price volatility during the season, increasing it just before harvest when almost all news has been received and stocks are tight, and decreasing it after harvest. The effect of news shocks is stronger on higher-order moments of the distribution with a strong decrease in skewness and kurtosis related to the lower frequency of price spikes.

Keywords: commodity storage; news shocks; Commodity price dynamics; public information (search for similar items in EconPapers)
Date: 2020
Note: View the original document on HAL open archive server: https://hal.inrae.fr/hal-02622352v2
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

Published in American Journal of Agricultural Economics, 2020, 102 (3), pp.846-865. ⟨10.1002/ajae.12013⟩

Downloads: (external link)
https://hal.inrae.fr/hal-02622352v2/document (application/pdf)

Related works:
Journal Article: The Value of Public Information in Storable Commodity Markets: Application to the Soybean Market (2020) Downloads
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-02622352

DOI: 10.1002/ajae.12013

Access Statistics for this paper

More papers in Post-Print from HAL
Bibliographic data for series maintained by CCSD ().

 
Page updated 2025-03-22
Handle: RePEc:hal:journl:hal-02622352