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Historical evidence has shown that increases in coffee prices, though generating a short term gain in export earnings for producers, also lead to increased plantings of the coffee crop. This in turn leads to overproduction and a subsequent drop in coffee prices. The establishment of the International Coffee Agreements was meant to stabilize this fluctuating behaviour in coffee prices. / The purpose of this paper is to present an overall analysis of coffee prices in order to predict the future course of prices under two circumstances. First, when the international coffee market is governed by the mandates of the International Coffee Agreements and secondly, when the market operates under free market conditions. The paper also attempts to draw parallels between the structure and mechanisms of the markets of coffee and tea. The first part of this paper provides a background study of the markets of coffee and tea including a discussion of the commodity cartels which have been signed to date in both markets. Part two provides a historical analysis of prices in both markets, followed by an econometric analysis of the demand for coffee in the largest consuming country in the world, the United States.

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This study investigates the effects of futures trading on petroleum price variability. Though a number of critics from various quarters claim futures markets have made petroleum prices more volatile, economic reasoning does not support this viewpoint. A review of theoretical studies and empirical investigations of other commodities shows general support for the hypothesis that futures markets do not destabilize prices and may, in fact, add to price stability. In this study, regression analysis is used to explain the price variability of heating oil and gasoline in terms of factors that may affect this variability, including the existence of futures markets. Though the empirical tests performed are biased towards finding destabilizing effects of futures markets, no statistically significant increase in price volatility is found, and in the case of gasoline, indications of stabilizing effects are found. Thus, neither the results of other studies of futures markets nor examination of petroleum futures trading support the critics' contention that futures trading has destabilized petroleum prices. / M.A.

Prolonged imbalances between feeder cattle costs and the pricing opportunities being offered cause highly variable placements of cattle into feedlots and variability in fed cattle prices. Such variability imposes costs on everyone in the system, from producer to consumer. Cattle feeders are in a position to exert the influence of very current and highly specific information on costs of feeding into trading levels for live cattle and feeder cattle futures. The tax treatment of speculative trades in the cattle futures markets has the potential to block participation of cattle feeders. To the extent that cattle feeders are effectively blocked from trading in futures in any capacity other than trades that meet the IRS "equal and opposite" criterion of a hedge, the correction of market imbalances may be impended. The economic viability of investments in cattle feeding can be influenced in a significant way by those market imbalances. This research examines the interaction of traders in the risk transfer and price discovery process in the live cattle markets. Econometric models over disaggregated data sets were developed to explain expected margin behavior in response to the changes in the positions held by identifiable and specific trader groups. In addition, trader behavior reactions to the levels of the feeding margins offered by the distant live cattle futures were examined. A weekly data series was constructed using the daily records of reporting trader positions in the live cattle futures at the Chicago Mercantile Exchange. Feeding margins offered by the futures were calculated using cash prices for feeder cattle and feed fixed at the time of placements of feeder cattle on feed. The analysis was for the 1983-1987 period. The analysis indicates that increases in large, long (short) trading activity were associated with increases (decreases) in the expected margin offered by the futures. More importantly, the behavior of large speculators were found to exert a constraining influence on margin changes and to start the market correction at extreme levels of negative margins. This implies that cattle feeders, trading as large traders, could contribute to correcting the market imbalances if they were allowed to fully participate in the price discovery process. / Master of Science