Price thresholds, price volatility, and the private costs of investment in a developing country grain market
Shively, Gerald E.
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This paper discusses price thresholds and volatility in an African maize market, based on analysis of data from Ghana using linear and threshold-ARCH models. There was a non-linear link between past prices and the level and volatility of present prices. The paper also describes the importance of critical thresholds for economic inference and reports on the cost of market participation, using econometric results to account for the implied risk.
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