Olympia: The Age of Gods PBEM (Oct 4 2000)
In addition to the common city markets, cities buy and sell trade goods (such as wool, rugs, old books, etc.) in a special market inside the local Trading Guild. Normally a city buys three trade goods and sells three trade goods.
Each month, the city produces the three goods it offers for sale and places them on sale, and places orders for the three goods it buys. The number of goods produced (or bought) depends upon the tradegood. For example, cities produce 50 wool per month, 10 rugs per month, and 1 old book per month.
Trade goods are initially offered (for sale or purchase) at their "base price". For example, the base price for wool is 19 gold, the base price for rugs is 125 gold, and the base price for old books is 1200 gold.
If a good is for sale and goes unsold, the price will be reduced. If the good is sold, it's price will be raised. A good's price will never be higher than approximately twice its base price, nor lower than approximately half its base price. There will never be more of a good for sale than the city produces in one year. A good that goes unsold for a time will be removed from the market and replaced with another good.
If a good is demanded and goes unfulfilled, the price will be raised. If the good is filled, it's price will be reduced. A good's price will never be higher than approximately twice its base price, nor lower than approximately half its base price. A good that goes unfulfilled for a time will be removed from the market and replaced with another good.
Trading skills exist to manipulate the market in trade goods in various ways.
Base prices for trade goods can be found in Appendix - Reference Sheets.