The text discusses factors influencing wheat, barley, and corn prices in the world market. For wheat, factors that could lead to higher prices include decreased production in Australia and reduced production area in Argentina. In contrast, a decrease in demand from importers and sufficient domestic supplies could lead to lower wheat prices. For barley, a decrease in production area in Argentina and congestion at ports contribute to decreasing prices. Corn prices, on the other hand, are not significantly impacted by any specific factors, but an increase in corn crops in good/excellent condition and raised production forecasts in the EU could lead to lower prices.