blockService_Sector_Investment
Investments in the service sector
Information
This model calculates the capital invested in the service sector.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 service capital is measured in U.S. dollars.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | t_policy_year | 4000 | Year of policy change |
| Real | p_avg_life_serv_cap_1 | 20 | Default average life of service sector capital |
| Real | p_avg_life_serv_cap_2 | 20 | Controlled average life of service sector capital |
| Real | p_serv_cap_out_ratio_1 | 1.0 | Default fraction of service sector output ratio |
| Real | p_serv_cap_out_ratio_2 | 1.0 | Controlled fraction of service sector output ratio |
| Real | service_capital_init | 144000000000.0 | Initial service sector investment |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| SystemDynamics.Interfaces.MassInPort | population | Population | |
| SystemDynamics.Interfaces.MassInPort | capital_util_fr | Capital utilization fraction | |
| SystemDynamics.Interfaces.MassInPort | industrial_output | Annual industrial output | |
| SystemDynamics.Interfaces.MassInPort | ind_out_pc | Per capita annual industrial output | |
| SystemDynamics.Interfaces.MassOutPort | serv_out_pc | Per capita annual expenditure in services | |
| SystemDynamics.Interfaces.MassOutPort | service_capital | Total capital invested in service sector | |
| SystemDynamics.Interfaces.MassOutPort | s_fioa_serv | Fraction of total investments allocated to the service sector |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SystemDynamics.Sources.Source | Source1 | ||
| SystemDynamics.Rates.RRate | Serv_Cap_Invest | p.230 of Dynamics of Growth in a Finite World | |
| SystemDynamics.Levels.Level | Service_Capital | p.230 of Dynamics of Growth in a Finite World | |
| SystemDynamics.Rates.RRate | Serv_Cap_Deprec | p.231 of Dynamics of Growth in a Finite World | |
| SystemDynamics.Sources.Sink | Sink1 | ||
| SystemDynamics.Auxiliary.Prod_2 | Serv_Cap_Inv | p.230 of Dynamics of Growth in a Finite World | |
| Modelica.Blocks.Math.Division | Serv_Cap_Dep | p.231 of Dynamics of Growth in a Finite World | |
| SystemDynamics.WorldDynamics.World3.Utilities.S_Avg_Life_Serv_Cap | S_Avg_Life_Serv_Cap | p.231 of Dynamics of Growth in a Finite World | |
| SystemDynamics.WorldDynamics.World3.Utilities.Service_Output | Service_Output | p.231 of Dynamics of Growth in a Finite World | |
| SystemDynamics.WorldDynamics.World3.Utilities.S_Serv_Cap_Out_Ratio | S_Serv_Cap_Out_Ratio | p.232 of Dynamics of Growth in a Finite World | |
| SystemDynamics.WorldDynamics.World3.Utilities.S_FIOA_Serv | S_FIOA_Serv | p.229 of Dynamics of Growth in a Finite World | |
| SystemDynamics.Functions.Tabular | P_Fr_IO_Al_Serv_1 | p.229 of Dynamics of Growth in a Finite World | |
| SystemDynamics.Functions.Tabular | P_Fr_IO_Al_Serv_2 | p.229 of Dynamics of Growth in a Finite World | |
| Modelica.Blocks.Math.Division | Div1 | p.229 of Dynamics of Growth in a Finite World | |
| SystemDynamics.WorldDynamics.World3.Utilities.S_Indic_Serv_PC | S_Indic_Serv_PC | p.227 of Dynamics of Growth in a Finite World | |
| SystemDynamics.Functions.Tabular | P_Indic_Serv_PC_1 | p.227 of Dynamics of Growth in a Finite World | |
| SystemDynamics.Functions.Tabular | P_Indic_Serv_PC_2 | p.227 of Dynamics of Growth in a Finite World | |
| Modelica.Blocks.Math.Division | Serv_Out_PC | p.232 of Dynamics of Growth in a Finite World |