continuous increase of investment was simultaneous with prices increases. Speculation and price spikes were soon “correlated”. A … price volatility on commodity markets through improved control of speculation on futures and OTC markets. The article is … analysing the hypothesis that commodity funds are causing price volatility using first a direct relationship between the “Assets …

, which is sequentially linked via a price-linkage equation to local rural maize markets. The model accounts for market … maize markets. The simulation is conducted using a multiequation partial equilibrium model of the national maize market … imperfections prevailing in the country that arise from government price interventions. Findings show that some alternative exit …