FASOM Hamburg
January 17-19, 2007
Topics
FASOM Basics
FASOM Equations
Analyzing FASOM
Modifying FASOM
Model Scope
Natural Resources
Agriculture
Forestry
Processing
Food, Fibre, Timber, Energy Markets
Purpose and Objectives
To study and advice policy makers about the agricultural and forestry sector response to
Policies
Environmental change
Technical change
Socioeconomic change
Policy Scope
Simultaneous assessment Climate and other environmental policies
Research subsidies
Agricultural policies
Trade policies
Structural Changes
Policies
Environmental change
Technical change
Socioeconomic change (population, preferences)
Methodology
Partial Equilibrium
Bottom Up
Constrained Welfare Maximization
Dynamic Optimization
Integrated Assessment
Mathematical programming
GAMS
Model Structure
Resources Land Use
Technologies Processing Technologies Products Markets Inputs Limits Supply
Functions Limits Demand
Functions,
Trade Limits Environmental
Impacts
FASOM is a Large Linear Program
Programming
Declare and Assign
Indexes
Exogenous data
Endogenous data
Equations (endogenous/exogenous)
Run Programs and Display Results
Major Indexes (Sets) (decl_basicsets.gms)
Regions
Periods
Altitudes
Species
Resources
Cohorts Farm sizes
Farm types
Technologies
Products
Substances
Sets
Identify scope
Efficient, sometimes challenging
Super sets, Sub sets, Tuples (Index maps)
decl_basicsets.gms
2_activesets.gms
calc_tuples.gms
Exogenous Data
Resource endowments
Technologies (Inputs,Outputs, Costs)
Environmental Impacts
Demand functions
Policies
Base Year Observations
Exogenous Data
Parameters (Tables, Scalars)
decl_parameters.gms
Data_*.gms
Data Subdirectories
EPIC
FINDUS
FADN + others
OSKAR
FAO
BIODIV
Endogenous Data
Land use decisions (control variables), Impacts (state variables), Shadow prices of constraints
Positive and Free Variables
(Integer Variabales)
4_eufasom_model.gms
Equations
Understanding them is
to understand FASOM
Equations
Objective Function
Resource Restrictions
Technological Restrictions
Environmental Accounts
Others
Major Parameters FOREST_DATA (PERIOD,REGION,SOILTYPE,SOILSTATE,SPECIES,FARM,AGE,ALLTECH,ALLITEM) PEREN_DATA (PERIOD,REGION,SOILTYPE,SOILSTATE,SPECIES,FARM,AGE,ALLTECH,ALLITEM) CROP_DATA (PERIOD,REGION,SOILTYPE,SOILSTATE,SPECIES,FARM,ALLTECH,ALLITEM) ECO_DATA (PERIOD,REGION,SOILTYPE,SOILSTATE,ALLTECH,ALLITEM) LIVE_DATA (PERIOD,REGION,ANIMAL,ALLTECH,ALLITEM) FEED_DATA (PERIOD,REGION,PRODUCT,ALLTECH,ALLITEM) PROCESS_DATA (PERIOD,REGION,ALLTECH,ALLITEM) PRODUCT_DATA (PERIOD,REGION,PRODUCT,ALLITEM) MARKET_DATA (PERIOD,REGION,ALLITEM,SDTYPE,SDITEM) TRADE_DATA (PERIOD,REGION,REGION,PRODUCT,ALLITEM) RESOURCE_DATA (PERIOD,REGION,ALLRESOURCE,SDITEM) STOCK_DATA (PERIOD,REGION,PRODUCT,ALLITEM) LUC_DATA (PERIOD,REGION,SOILTYPE,SPECIES,ALLCHANGE,ALLITEM)
Description:
FASOM Hamburg
January 17-19, 2007
Tags:
period | region | data | gms | equ | equat | product | includ
Created:
1/12/2007 12:12:23 PM
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