Trading Luxury Resources

[Cheeseisgood]

Quick question on something I've never fully understood -

When trading luxury resources to an AI, do you trade only one set of those resources? Say if I have 2xPearls, I only gain the happiness bonus from having 1x Pearls. If I trade Pearls to another civ, am I only trading the spare one, or both?

If I only have one of a luxuary resource and trade it, I assume I trade that and lose the happiness bonus?

With Strategic resources it seems a lot easier to track, given the bar at the top :S

 

[Temo]

Pretty sure you trade your extra one if you have 2.

I also wonder: Do you lose the wonder-building bonus if you trade your only stack of marble?

 

[Cheeseisgood]

Pretty sure you trade your extra one if you have 2.

I also wonder: Do you lose the wonder-building bonus if you trade your only stack of marble?

I'd assume so.

The confusing thing is I don't think there's a textbox to choose how many you trade, like there is for strategic resources.

 

[Poomermon]

Pretty sure you trade your extra one if you have 2.

I also wonder: Do you lose the wonder-building bonus if you trade your only stack of marble?

You don't lose the wonder building bonus. The city with access to marble still has it as long the luxury is improved.