Find the domain of the function. 
Definitions:
Primary Products
Goods that are available from cultivating raw materials without a manufacturing process.
Crop Supply
Crop supply denotes the total quantity of agricultural crops that are available in the market during a specific period.
Weather Fluctuations
Variations in weather conditions that can affect economic activities, such as agriculture and energy consumption.
Product Prices
The amounts of money required to purchase goods or services, set by sellers based on costs, market demand, and supply conditions.
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