In an update and extension of prior work this study found that the potato futures markets continued to provide very unreliable forecasts of subsequent spot prices. On the other hand and contrary to some past studies an extensive study here failed to turn up any convincing evidence of a cobweb...

A five-year linear programming farm planning model, permitting the inclusion of nitrogen decay rates, was constructed to include the use of sewage sludge as a primary crop nutrient source. Twenty-two scenarios depicting various operating conditions were examined and maximized net farm incomes...