Tenacious-Techhunter
Mongoose
GURPS Traveller Far Trader is the gold standard for trading rules; it has yet to be surpassed.
http://www.sjgames.com/gurps/traveller/fartrader/
Built on a solid foundation of economic theory, everything just works... at least, for GURPS. The math constants aren't the same across systems, and an update of this book for Mongoose Traveller 2.0, perhaps as the next "Merchant Prince", would work really well. It would allow players to ditch all those wonky improvised rules for a system that actually rewards thoughtful trading gambits.
http://www.sjgames.com/gurps/traveller/fartrader/
Built on a solid foundation of economic theory, everything just works... at least, for GURPS. The math constants aren't the same across systems, and an update of this book for Mongoose Traveller 2.0, perhaps as the next "Merchant Prince", would work really well. It would allow players to ditch all those wonky improvised rules for a system that actually rewards thoughtful trading gambits.