Live bargaining between 4 players Nash-Kalai r=0 and then r=60 Live bargaining between 4 players Nash-Kalai r=60 and then r=0 Live bargaining between 4 players Nash-Kalai r=0 and then r=30 Live bargaining between 4 players Nash-Kalai r=30 and then r=0 Live bargaining between 4 players Nash-Kalai r=30 and then r=60 Live bargaining between 4 players Nash-Kalai r=60 and then r=30