Price Relationships in Processors' Input Market Areas: Testing Theories for Corn Prices Near Ethanol Plants
Why this work is in the frame
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Bibliographic record
Abstract
This study examines corn pricing in the vicinity of processing plants. We develop and test several price‐distance models for cargo, insurance and freight (CIF) plant pricing in the presence of varying degrees of exporter competition, and for discriminatory free‐on‐board (FOB) pricing at the farm. The price‐distance functions describing spatial prices near processing plants all depend on local transport costs. But the pricing system (CIF or FOB) and the extent of local competition define the level and spatial rate of change in prices.Estimations of an empirical price‐location function for Iowa during the spring of 2003 suggest that prices near the plants of four conventional businesses conform to the CIF pricing model. But prices near producer‐owned firms or farmer cooperatives failed to show any statistically significant effect on nearby prices. One plant had a price‐distance function that resembled FOB pricing.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.002 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it