Managers get higher performing employees by raising their Losada ratio. The Losada ratio is also known as the positivity ratio, Gottman ratio, and Losada line. The Losada ratio is the sum of the positivity in a system divided by the sum of its negativity. A ratio of 3.0 to 6.0 has been found to be highly correlated with high performance. The theory came from the field research of psychologist of Marcial Losada and relationship analysis of John Gottman. The Losada Line of positive to negative interactions which are necessary to make a team successful is set at a minimum of 2.9013. I say the word minimum because teams will function higher the more positive experiences they have. Good environments have always operated highest around a 6 to 1 positive to negative difference.