World3 Nonrenewable Resource Sector - Overview


The model combines all possible nonrenewable resources into one aggregate variable, nonrenewable_resources. This combines both energy resources and non-energy resources. Examples of nonrenewable energy resources would include oil and coal. Examples of material nonrenewable resources would include aluminum and zinc. This assumption allows costless substitution between any nonrenewable resource. The model ignores differences between discovered resources and undiscovered resources.

The model assumes that as greater percentages of total nonrenewable resources are used, the amount of effort used to extract the nonrenewable resources will increase. The way this cost is done is as a variable fraction_of_capital_allocated_to_obtaining_resources, or abbreviated fcaor. The way this variable is used is in the equation that calculates industrial output. Basically, it works as effective_output = industrial_capital*other_factors*(1-fcaor). This causes the amount of resources expended to depend on the amount of industrial capital, and not on the amount of resources consumed.

The consumption of nonrenewable resources is determined by a nonlinear function of the per capita industrial output. The higher the per capita industrial output, the higher the nonrenewable resource consumption.

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