Land Trade
- Trade worth between settlements is based on
- size of the settlements in terms of populations;
- worth of goods traded;
- level of the roads;
- bonuses from buildings (defined in EDB, calculated on-top of the base value, ie after taking into account the populations and worth of trade goods.
- Trade value of a good is governed by:
- the base price in descr_sm_resources,
- the multiplier in descr_settlement_mechanics
- the distance of the first instance of that resource from the capital
- trade agreements have a significant effect
- provinces don't trade the same good (eg. if both produce wheat, then no trade).
- A province conducts trade with all provinces it borders with (even if there’s no road, or road is even not possible to be produced, i.e. there’s an impassable terrain) if there’s at least 1 resource produced in one settlement but not produced in the other.
Sea Trade- if a settlement has
a port, it can trade by sea with other
settlements that also have a port
-
no sea-trade with adjacent provinces (they do land-trade)
-
at least one different resource has to be different both provinces; the more different resources qualify for export/import to/from a given province, the more lucrative sea trade with that province will be
- even your basic port can receive sea-trade from several other ports – it will happen if your province is their most lucrative choice
-
1 trade fleet allows
1 export connection to another port which is chosen based on the profitability of this connection, that depends on:
o the population of the two cities
o the value of the goods (each type of good has a certain value – eg. textiles are more worth than timber),
o the diversity of goods (how many different types goods there’re, eg. timber, fish, grain, marble, metals, etc.),
o the number of goods (a province may produce more than 1 good of the same type).
-
Exports make much more than imports by a calculation based as factor of population sizes of the cities doing the trade, the level of the trade infrastructure and the value of the good. Imports make about 10-30% of the export factor based on the combination of the population of the importing and exporting cities with the added value of the trade infrastructure multipliers added to that base value
Bottom line: profitability of trade:- sea trade routes are the single most lucrative connections;
- however, land trade bonuses are overall higher since
- (1) almost all trade infrastructure benefit land trade
- (2) there are more land trade connections
- what follows, regions with numerous land connections still generate much more trade since sea trade is capped at 3 fleets (highest level of port);
- however I may happen that a region has few neighboring regions and may share the same resources with them (for sea trade there’re more options).