英国首相卡梅伦将TTIP称为“一代人只有一次的机会 ” ， 认为它将给欧盟和美国各带来800亿英镑的潜在收益，给世界其他地区带来850亿英镑的潜在收益。
British Prime Minister David Cameron has called the TTIP a “once-in-a-generation prize,” citing potential gains of £80 billion ($125.5 billion) each for the EU and the US and £85 billion for the rest of the world.