Players having pieces of others in cash games

[SA125]

Not sure if this is the right place for this question. If not, mod please move to right place.

Been talking with a couple of buddies of mine about a situation we encounter. It's a 10 handed cash game where one of the players sometimes has a piece of some of the other players. The number of staked players and the size of the piece varies. It may be up to 3 players and the amount is between 25-50%.

So you may have a 10 handed game where he has a piece of 3 other players with 25% of one and 50% of the other 2.

We've been discussing whether or not it's -EV to play in this game and whether it's +EV for someone to have that situation.

A typical situation is 3 handed pot with you, the staker and a guy he has 50% of. Is it correct to assume he's winning/losing 150% every time you win or lose a pot. 100% when he wins and 50% when his guy wins, and vice versa. And if so, does that give him an edge?

The assumption is no collusion at all. It's strictly a question of whether or not he has an edge in the game. Comments appreciated.