It is often said that supply/demand analysis for grains and oilseeds is far more art than science. Of course, the farther into the future the forecasts of crop production and supplies are made, the more difficult the process becomes as there are many variables to consider.When it comes to commodity markets, even the most ardent technical traders and analysts will concede that it is ultimately the relationship between the available supplies and demand that determines the commodity's equilibrium value. As the proprietor of perhaps the best-known technical commodity fund of the mid-1980s once said to us, "I know that where market prices go is eventually decided by supply and demand, but technical factors determine how we get there." In both fr...