# Model Documentation

### | Version 4.0

created with goxygen 0.21.1

# 09_drivers

# Drivers (09_drivers)

## Description

The Drivers module provides data on drivers that are used by several other modules. It mainly aggregates inputs related to population and GDP. If an input is required in one module or realization only, the input driver is provided directly by the module that demands it, rather than by the 09_drivers module.

## Interfaces

Interfaces to other modules

### Input

### Output

module outputs
| Description | Unit
--- | --- | ---
im_demography (t, iso, sex, age) | Population by groups | \(10^6/yr\)
im_development_state (t, i) | Development state according to the World Bank definition where 0=low income country 1=high income country in high income level | \(1\)
im_gdp_pc_mer (t, i) | Per capita income in market exchange rates | \(USD_{05MER}/cap/yr\)
im_gdp_pc_ppp_iso (t, iso) | Per capita income in purchasing power parity | \(USD_{05PPP}/cap/yr\)
im_gdp_pc_ppp (t, i) | Per capita income in purchasing power parity | \(USD_{05PPP}/cap/yr\)
im_physical_inactivity (t, iso, sex, age) | Share of population which is physically inactive | \(1\)
im_pop_iso (t, iso) | Population | \(10^6/yr\)
im_pop (t, i) | Population | \(10^6/yr\)

## Realizations

### (A) aug17

In the aug17 realization, inputs are taken into the module and are directly delivered to the modules that require the data.

> Limitations There are no known limitations.

## Definitions

### Objects

module-internal objects (A: aug17)
| Description | Unit | A
--- | --- | --- | ---
f09_demography (t_all, iso, pop_scen09, sex, age) | Population | \(10^6 capita/yr\) | x
f09_development_state (t_all, i, gdp_scen09) | Development state according to the World Bank definition where 0=low income country 1=high income country in high income level | \(1\) | x
f09_gdp_mer_iso (t_all, iso, gdp_scen09) | Income in market exchange rates | \(10^6 USD_{05MER}/yr\) | x
f09_gdp_ppp_iso (t_all, iso, gdp_scen09) | Income in purchasing power parity | \(10^6 USD_{05PPP}/yr\) | x
f09_physical_inactivity (t_all, iso, gdp_scen09, sex, age) | Share of population which is physically inactive | \(1\) | x
f09_pop_iso (t_all, iso, pop_scen09) | Population | \(10^6 capita/yr\) | x
i09_gdp_mer_iso (t, iso) | Income in market exchange rates | \(10^6 USD_{05MER}/yr\) | x
i09_gdp_mer (t, i) | Income in market exchange rates | \(10^6 USD_{05MER}/yr\) | x
i09_gdp_pc_mer_iso (t, iso) | Per capita income in market exchange rates | \(USD_{05MER}/cap/yr\) | x
i09_gdp_ppp_iso (t, iso) | Income in purchasing power parity | \(10^6 USD_{05PPP}/yr\) | x
i09_gdp_ppp (t, i) | Income in purchasing power parity | \(10^6 USD_{05PPP}/yr\) | x

### Sets

sets in use
| description
--- | ---
age | Population age groups
gdp_scen09 | GDP scenario
i | World regions
pop_scen09 | Population scenario
sex | Sex groups
t_all | 5-year time periods
t(t_all) | Simulated time periods

## Authors

Benjamin Leon Bodirsky

## See Also

12_interest_rate, 15_food, 18_residues, 42_water_demand, 55_awms, 70_livestock

## References