WOLFRAM SYSTEM MODELER
Industrial_InvestmentInvestments in the military/industrial sector |
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Diagram
Wolfram Language
In[1]:=
SystemModel["SystemDynamics.WorldDynamics.World3.Industrial_Investment"]
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Information
This model calculates the capital invested in industry.
Whereas the earlier WORLD2 model lumped all capital investment into a single state variable from which it then split off the percentage of capital invested in the agricultural sector as a second state variable (a funny choice for a state variable, since percentages don't accumulate), the more modern WORLD3 model differentiates between capital invested in industry, capital invested in the service sector, capital invested in agriculture, and other capital investment.
The industrial capital is measured in U.S. dollars.
Parameters (9)
| industrial_capital_init |
Value: 210000000000.0 Type: Real (dollar) Description: Initial industrial investment |
|---|---|
| ind_out_pc_des |
Value: 400 Type: Real (dollar/yr) Description: Desired annual industrial per capita output |
| p_avg_life_ind_cap_1 |
Value: 14 Type: Real (yr) Description: Default average life of industrial capital |
| p_avg_life_ind_cap_2 |
Value: 14 Type: Real (yr) Description: Controlled average life of industrial capital |
| p_fioa_cons_const_1 |
Value: 0.43 Type: Real Description: Default fraction of industrial output allocated to consumption |
| p_fioa_cons_const_2 |
Value: 0.43 Type: Real Description: Controlled fraction of industrial output allocated to consumption |
| p_ind_cap_out_ratio_1 |
Value: 3 Type: Real (yr) Description: Default industrial capital output ratio |
| t_ind_equil_time |
Value: 4000 Type: Real (yr) Description: Year of industrial equilibrium |
| t_policy_year |
Value: 4000 Type: Real (yr) Description: Year of policy change |
Connectors (12)
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population |
Type: MassInPort Description: Population |
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s_fioa_serv |
Type: MassInPort Description: Fraction of total investments allocated to the service sector |
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s_fioa_agr |
Type: MassInPort Description: Fraction of total investments allocated to the agricultural sector |
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s_fr_cap_al_obt_res |
Type: MassInPort Description: Fraction of capital allocated to resource use efficiency |
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capital_util_fr |
Type: MassInPort Description: Capital utilization fraction |
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ppoll_tech_mult_icor_COPM |
Type: MassInPort Description: Technology induced reduction in persistent pollution release |
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yield_tech_mult_icor_COYM |
Type: MassInPort Description: Technology induced relative enhancement of land yield |
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ind_cap_out_ratio_2_ICOR2T |
Type: MassInPort Description: Industrial capital output ratio |
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industrial_output |
Type: MassOutPort Description: Annual industrial output |
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industrial_capital |
Type: MassOutPort Description: Total capital invested in the military/industrial sector |
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ind_out_pc |
Type: MassOutPort Description: Per capita annual industrial output |
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cons_ind_out_pc1 |
Type: MassOutPort Description: Per capita general industrial output |
Components (19)
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Industrial_Capital |
Type: Level Description: p.218 of Dynamics of Growth in a Finite World |
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Ind_Cap_Invest |
Type: RRate Description: p.222 of Dynamics of Growth in a Finite World |
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Ind_Cap_Deprec |
Type: RRate Description: p.221 of Dynamics of Growth in a Finite World |
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Ind_Cap_Inv |
Type: Prod_2 Description: p.222 of Dynamics of Growth in a Finite World |
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Ind_Cap_Dep |
Type: Division Description: p.221 of Dynamics of Growth in a Finite World |
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Industrial_Output |
Type: Industrial_Output Description: p.216 of Dynamics of Growth in a Finite World |
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S_Ind_Cap_Out_Ratio |
Type: S_Ind_Cap_Out_Ratio Description: p.216 of Dynamics of Growth in a Finite World |
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P_Ind_Cap_Out_Ratio_2 |
Type: Prod_3 Description: Product of three influencing factors |
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S_Avg_Life_Ind_Cap |
Type: S_Avg_Life_Ind_Cap Description: p.221 of Dynamics of Growth in a Finite World |
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Source1 |
Type: Source Description: This is the (dummy) source model of System Dynamics |
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Sink1 |
Type: Sink Description: This is the (dummy) sink model of System Dynamics |
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FIOA_Ind |
Type: FIOA_Ind Description: p.223 of Dynamics of Growth in a Finite World |
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S_FIOA_Cons |
Type: S_FIOA_Cons Description: p.223 of Dynamics of Growth in a Finite World |
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S_FIOA_Cons_Const |
Type: S_FIOA_Cons_Const Description: p.223 of Dynamics of Growth in a Finite World |
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P_FIOA_Cons_Var |
Type: Tabular Description: p.225 of Dynamics of Growth in a Finite World |
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Gain1 |
Type: Gain Description: Output the product of a gain value with the input signal |
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Ind_Out_PC |
Type: Division Description: p.214 of Dynamics of Growth in a Finite World |
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Cons_Ind_Out |
Type: Prod_2 Description: Product of two influencing factors |
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Cons_Ind_Out_PC |
Type: Division Description: Output first input divided by second input |
Used in Examples (11)
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SystemDynamics.WorldDynamics.World3 Original WORLD3 model |
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SystemDynamics.WorldDynamics.World3 More abundant non-recoverable natural resources |
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SystemDynamics.WorldDynamics.World3 More accessible non-recoverable natural resources and pollution control |
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SystemDynamics.WorldDynamics.World3 More accessible non-recoverable natural resources, pollution control, and land yield enhancement |
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SystemDynamics.WorldDynamics.World3 More accessible non-recoverable natural resources, pollution control, land yield enhancement, and erosion protection |
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SystemDynamics.WorldDynamics.World3 More accessible non-recoverable natural resources, pollution control, land yield enhancement, erosion protection, and resource efficiency |
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SystemDynamics.WorldDynamics.World3 More abundant non-recoverable natural resources and birth control |
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SystemDynamics.WorldDynamics.World3 More abundant non-recoverable natural resources, birth control, and stable industrial output |
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SystemDynamics.WorldDynamics.World3 Combining the measures of Scenarios #6 and #8 |
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SystemDynamics.WorldDynamics.World3 Influencing the future 20 years earlier |
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SystemDynamics.WorldDynamics.World3 Influencing the future 10 years later |