During most of 2005-10, the price of expiring U.S. corn, soybeans, and wheat futures contracts settled much higher than corresponding delivery market cash prices. Because futures contracts at expiration are commonly thought to be equivalent to cash grain, this commodity price non-convergence...

Contents: 1. Introduction - 'changing philosophies' -- 2. The theory philosophy: 'changing theories' -- 3. The rational philosophy: 'changing plans' -- 4. The biological philosophy: 'changing organisms' -- 5. The models philosophy: 'changing consultants' -- 6. The institutional philosophy:...