The same two students still have the same symbiotic relationship(one is good at math and the other is good at science. They each prepare notes for the other ), but now there is a chance they can continue the relationship (every test for multiple courses). The payoffs remain the same. Receiving good notes has a utility of 8; receiving poor notes has a utility of 1. Preparing good notes costs 3 utility points; preparing poor notes does not cost any utility points.

Player 1 Player 2	Good Notes	Poor Notes
Good Notes	a,b	c,d
Poor Notes	e,f	g,k

Assuming that either player providing poor notes, will result in both providing poor notes in the future, what would be the required discount factor to ensure the students continue to help each other?