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Model/3b_calibtrade.gms
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Calibrates bilateral trade flows, bilateral transportation costs, prices to minimize deviation with observations for 2000
and at the same time ensures that for the base year of the model (2000):

       1. the sum of bilateral trade flows for a region matches with the FAO net trade (after potential adjustments of demand in 3_precompute) = equation h
       2. if there is a bilateral trade flow between two regions, the price in the importing region should be equal to the price in the exporting region
          plus all trade costs (tariff and transportation cost) = equation dx

Included files specific to trade calibration:

       - ``base_trade.gms`` which contains input trade data aggregated from country to GLOBIOM regions and HS6 products to GLOBIOM products
       - ``comptrade.gms``
       - ``calibtrade.gms`` which launches trade calibration procedure product by product
       - ``calc_nettrade.gms`` which computes the net trade as it should be in the model i.e. based on FAOSTAT after potential demand/supply adjustments from model calibration

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Includes
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.. toctree::
   :maxdepth: 1

   calc_nettrade
   calc_tuples
   calibtrade
   comptrade
   finaldata/base_trade