The quality or state of being collaborative; the tendency or willingness to work together with others effectively.
From 'collaborative' + '-ness' (suffix forming abstract nouns from adjectives), following standard English word-formation patterns developed through the 20th century.
Psychologists have found that 'collaborativeness' as a personality trait is one of the strongest predictors of success in modern workplaces—more important than raw intelligence or specialized skill.
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