Civ4CommerceInfo

Tags are either text tags (no prefix; they should contain letters), boolean (prefixed by a b, can be 1 [on] or 0 [off]) or integer (prefixed by i, containing numbers)

Tag	Usage	Default values
CommerceInfos	This begins and ends the file. Everything must go in between these two, or it will not work.
CommerceInfo	Encloses the entry for each commerce type
Type	The name that can be used in other files and in the SDK to refer to a particular commerce type.
Description	References the Text which contains the commerce description (eg: "gold", or "research"). The text is specified in any of the Assets\XML\Text files.
iInitialPercent	The percent value given to a commerce type when the game starts.	100 for research, 0 for the others.
iInitialHappiness	Sets the happiness received by this commerce type. Each n% to that commerce type provides a happy face.	10 for culture, 0 for the others
iAIWeightPercent	Sets the importance that this Commerce type has for the AI.	100 for gold, 125 for research, 25 for culture and espionage
bFlexiblePercent	Sets wheter a commerce type can be given a % of your total commerce. "Flexible" commerce types have their percent slider on the main screen. "Non-Flexible" commerce types might require certain techs to be given a percent slider (like Currency for gold).	1 for research and espionage, 0 for gold and culture
Button	The path of a dds file that contains the image for that commerce type.