What I'm looking at is that the price of corn has not gone up. In fact, adusted for inflation--
--corn's at the low end of its long term range. This is where the econ prof usually says "your goofy low-corn-price story may be all well and good in practice but in the cold hard world of theory it just falls apart."
Here is the proof.
http://data.bls.gov/timeseries/APU0000703112