Does party size influence magic find percentage?

I have heard many a rumor going around in the Guild Wars 2 community that you get a hidden magic find buff if you are in a party of five. After looking everywhere I have found no evidence of this claim, and yet...I still create parties of random people just to get a potentially hidden buff. Every little bit counts, right? (I have a full MF set of armor, with food I sit at +139%)

Is there a hidden magic find buff for being in a party of five people? If so, how much additional MF% is it?

Solution 1:

Arena Net has not confirmed any kind of Magic Find increase or loot quality increase for being in a party.

However, this rumor spun up because people have a perceived increase in party loot due to the following two things:

• A party will mow through high level mobs much faster than solo players. Going through a zone or area quickly lets you sample loot from more monsters, faster. In addition, depending on how many people are in your party and additional people in the area, monsters that spawn for events may be a higher level and thus have better loot.
• Being in a party may mean that you get better buffs, like Might, that help you tag mobs and therefore sample more loot.

Parties appear to be simply for organizational purposes. So far the best explanation we have is that you need to tag all monsters yourself and your party only helps so far as possibly giving you some offensive stats, like Might.

Solution 2:

AFAIK, there has been no reliable confirmation of this, either from ANET or player experimentation.

Given the murky mechanics behind MF in GW2, I'm not sure if this can be ever be confirmed without official word from ANET.

From my gameplay though, I have never experienced anything that would hint at such mechanics being present. I get way more green/yellow items running around solo compared to doing dungeons.