Strong Economy Mod, Increases yields, tweak buildings. Adds happiness.

[thadian]

Now, i wonder if there is a way to do something like this or not...

<Row>
<ImprovementType>IMPROVEMENT_TRADING_POST</ImprovementType>
<BuildingClass>BUILDINGCLASS_TRADE_FAIR</BuildingClass>
<YieldType>YIELD_GOLD</YieldType>
<Yield>1</Yield>
</Row>

or something similar.