ビジネスマン必勝講座 ヤクザに学ぶ 交渉術

For yakuza, negotiation is another life-or-death battlefield. How do they turn the tables in overwhelmingly unfavorable situations, convincing black to be white? What supports their astonishing negotiation tactics? With methods like logical arguments, complaints, provocations, accusations, and nitpicking, their negotiation style hides secret techniques that are now unveiled!!