Futures prices, trade and domestic supply of agricultural commodities

Méndez Parra, Maximiliano (2015) Futures prices, trade and domestic supply of agricultural commodities. Doctoral thesis (PhD), University of Sussex.

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Abstract

Commodity markets display substantial volatility both in prices and in the quantities
traded. This has led to the development of different instruments designed to address this
volatility. Processors and traders, who are actively involved in the international market,
participate in these commodity markets using cross-hedging strategies by their export and
domestic supply decisions. Spot and future prices, as well as the cross-hedging strategies,
affect export and the domestic supply decisions. Understanding this complex interaction
calls for further and newer insights and this research contributes to this.

The primary objective of Chapter 1 of this thesis is to develop a model which explains
the export and domestic supply decisions when traders, producers and speculators
participate in a futures market for a primary commodity, which can be stored and for
which future markets operate. As a result, exports and domestic supply are affected by
the prices of the primary product, and jointly by the prices in the external and domestic
market. Chapter 2 provides the historical, political and economic context of the Argentine
economy and the agricultural sector, specifically on the three agricultural commodities
used in the empirical part of this research. In Chapter 3, we perform a comprehensive
analysis of the seasonal unit roots of monthly series of exports and domestic supply, using
time series that include zero values. In the past, this technique has mostly been applied to
quarterly data but never to monthly series that display periods of inactivity. The results
indicate that, in general, the seasonality observed in the series analysed can be sufficiently
explained by a deterministic approach. The estimation and further analysis of the supply
equations derived in Chapter 1 are undertaken in Chapter 4. A comprehensive analysis of
seasonal cointegration using monthly data was conducted but, in light of the results
obtained in Chapter 3, only the Engle-Granger cointegration is applied. The results indicate weak cointegration relationships. This may indicate the need for improved data
and/or alternative econometric techniques.

Item Type: Thesis (Doctoral)
Schools and Departments: School of Business, Management and Economics > Economics
Subjects: H Social Sciences > HD Industries. Land use. Labour > HD1401 Agriculture
H Social Sciences > HG Finance > HG4501 Investment, capital formation, speculation > HG6001 Speculation
Depositing User: Library Cataloguing
Date Deposited: 10 Apr 2015 12:18
Last Modified: 28 Sep 2015 13:45
URI: http://sro.sussex.ac.uk/id/eprint/53619

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