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Rules

1st step - Constitution of the networks of exchange -

For each city, and for each function :
  • Identification of all the cities potentially adequate for an exchange
  • Pre-selection of the cities which have been valuable customers at preceding iteration
  • Random selection among the others in order to complete the network
2nd step - Exchange market -
  • Each city indicates its supply to each potential customer
  • The customer cities receive the supply proposals, possibly from several producing cities
  • A selection is then operated from both sides:
    • A city's supply is distributed proportionally to the weight of the total demand of each city
    • The cities select the supplying ones according to criteria of technicity or low cost (depending on the kind of function).
  • The transfer of wealth associated to each transaction is operated
NB: this procedure operates in parallel for the exchanges associated to all functions

3rd step - Exchange balance -

The exchange balance is computed for each function at the level of each city in terms of:
  • Sold / unsold goods
  • Satisfied / unsatisfied demand
  • Gain / loss of wealth
4th step - Evaluation of change -
  • In terms of population growth
  • in terms of the sectoral distribution of the labour force
Details for the specialised functions
Details of the cycle of allocation of demands and supplies
 
- MATHEMATICAL FORMALISATION OF THE EXCHANGE MARKET RULES -
mathematical formalisation of the exchange market rules
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