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calibrating_the_global_trade_model [2020/03/01 07:45] – [Stage I: Data preparation and balancing] matszcalibrating_the_global_trade_model [2020/03/01 07:46] – [tage IV: Initialization and test run] matsz
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 At the final stage, some of the starting values and bounds for the market model are set, and agricultural policy data are loaded, adjusted and extended to the simulation year. The policy data include single area payment scheme, set-aside regulations, differentiation between old and new MSs payments, special national envelopes, Nordic schemes, changes in administrative prices, rural development policy and other major CAP post-2014 instruments. Policy files used for the baseline are located in C:\...\CAPRI\ gams\scen\base_scenarios folder. Their loading into the baseline process is controlled by CAP_2014_2020.gms file. With the data mentioned, the outcome of calibration of the CAPRI market module can be tested. In particular, the market model is solved at "trend values" and, thus, the calibration outcome is checked for fitting to the square system of market model equations. This is controlled by C:\...\CAPRI\.gams\arm\prep_market.gms file. At the final stage, some of the starting values and bounds for the market model are set, and agricultural policy data are loaded, adjusted and extended to the simulation year. The policy data include single area payment scheme, set-aside regulations, differentiation between old and new MSs payments, special national envelopes, Nordic schemes, changes in administrative prices, rural development policy and other major CAP post-2014 instruments. Policy files used for the baseline are located in C:\...\CAPRI\ gams\scen\base_scenarios folder. Their loading into the baseline process is controlled by CAP_2014_2020.gms file. With the data mentioned, the outcome of calibration of the CAPRI market module can be tested. In particular, the market model is solved at "trend values" and, thus, the calibration outcome is checked for fitting to the square system of market model equations. This is controlled by C:\...\CAPRI\.gams\arm\prep_market.gms file.
 +
 +====Technical remarks====
 +
 +Note that the task "Baseline calibration of market model" deletes the sim_ini.gdx file, but does not create a new one at the end of the calibration process. The new sim_ini.gdx file will be only created at the first simulation run after the calibration. That is also the reason why a specific GUI option 'Kill simini file' is provided for the simulation tasks. The simini file can be deleted upon request at the beginning of any scenario run, forcing CAPRI to re-create it before the scenario shock is introduced.
 +
 +Technically, the calibration of the biofuel demand system and the Armington bilateral trade system is not directly linked to the BASELINE mode, but also executed every time when the simini file is missing (by create_sim_ini_gdx module). 
  
calibrating_the_global_trade_model.txt · Last modified: 2022/11/07 10:23 by 127.0.0.1

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