Wonder information:
Colossus
+3 Gold
+1 Great Merchant points per turn
Grants a Trader unit.
Great Zimbabwe
+5 Gold
+2 Great Merchant points per turn.
+1 Trade Route capacity.Your Trade Routes from this city get +2 Gold for every Bonus resource in this city's territory.
Big Ben
+6 Gold
+3 Great Merchant points per turn
+1 Economic policy slot
Doubles current treasury
Civic information:
Merchant Republic
+2 trade routes. 15% Discount on gold purchases.
Additional +1% Discount on gold purchases every ### turns.
Martial Law
Accumulate 25% less war weariness than usual
Free Market
+100% Gold yield from Commercial Hub district buildings
Triangular Trade
+4 Gold and +1 Faith from all trade routes
Merchant Confederation
+1 gold from each of your envoys at City-States
Laissez-Faire
+4 Great Merchant points per turn Travelling Merchants