Recent declines in CBOT futures prices extend out through 2015 and are making South American producers nervous about the future margins that they can expect to receive. Production Cost Concerns Increasing in South America Recent declines in CBOT futures prices extend out through 2015 and are making South American producers nervous about the future margins that they can expect to receive. When margins are thin, even a small weather-related issue can cause positive margins to become negative. For example, consider how heavy rains are creating problems for Paraguayan farmers. Losses in the country's corn crop are estimated at 10 percent, or approximately 600,000 hectares. The combination of such a decline in production, transportation delays...