Different speech tactics for a critical utterance and assessment of business communication efficacy

The article is dedicated to the research of the business discourse in order to propose basis for teaching effective business communication. The article regards speech tactics / tacticals move as discursive units helpful for business communication efficacy assessment; a distinction of «efficacy / effectiveness» is introduced. 5 typical tactical moves within frame of destructive critical utterance are discriminated and described; 4 criteria for speech assessment are formulated.