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Old crop versus new crop prices: Explaining the correlation
Author(s) -
Arroyo Marioli Francisco
Publication year - 2020
Publication title -
journal of futures markets
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.88
H-Index - 55
eISSN - 1096-9934
pISSN - 0270-7314
DOI - 10.1002/fut.22106
Subject(s) - preharvest , economics , econometrics , commodity , crop , correlation , postharvest , moment (physics) , mathematics , agronomy , physics , horticulture , geometry , classical mechanics , market economy , biology
Abstract Although competitive storage theory has proven successful in explaining many patterns for commodity prices, some features are not understood. While standard models predict low correlation between future prices with delivery dates before and after the harvest, the data suggest otherwise. To correct this, I assume that harvests appear continuously rather than at a single moment. This addition to the standard model allows me to link preharvest and postharvest markets to the same source of supply, and hence obtain the empirically observed high correlation. Empirical evidence also suggests that my assumptions are realistic. Results are robust to different parameter specifications.