Consider the following regression equation: 
. What does 
imply?
Definitions:
Warehouse Receipts
Documents that provide proof of ownership of commodities that are stored in a warehouse for protection and future sale.
Cross-Hedging
A strategy used to manage risk by hedging a position in one asset with a position in another asset that has a similar price movement but is not identical.
Bauxite
The primary ore of aluminum, consisting primarily of aluminum oxide minerals, clay minerals, and insoluble materials.
Aluminum Ore
The natural mineral compound from which aluminum is extracted, primarily bauxite.
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