When do you know you've lost an argument?

not enough information

Wrong information

Tthe moment you do not have a relevant answers to the questions, or if the other party does not ask you any questions or show any interest in the argument.

An argument is never lost. Either you KNOW you are right and are CAPABLE of convincing the person facing you to come over to your side of the fence "where the lawn is greener" or NEVER get into the argument in the begining.

I feel that I lost my arguments when I'am not well prepared to negotiate a contract or discuss a bargain, in other words when I do not have enough information about the need, and the market

An argument is never lost. Either you KNOW you are right and are CAPABLE of convincing the person facing you to come over to your side of the fence.

my arguements are based on facts i have on hand. In all probably i would not argue if my details were not accurate. So the chances of me loosing an argument become thin. In case i do feel that the other party has more solid facts I would tend not to waste more time.

ARGUMENTS TO ME ARE NOT ALL ABOUT LOSING AND WINNING, BUT TRYING TO SELL ONES IDEA TO THE OTHER PERSON, USUALLY WHEN I FEEL THE OTHER PEOPLE HAS OUT-REASONED ME THEN I AGREE TO HIS/HER OPINION ON SUBJECT OF ARGUMENT

When the other person is not ready to adjust any further.

Negotiation is an art to reach at common consesnus to close the deal. There could be a point where both the parties may disagree, but, over the period of time say after a certain time gap, talks can be re-initiated. hence, I feel I have not lost an argument.

When you raise your argument only in the favour of one sided (personal side), then your vendor or your opposite partner may loose the interst in your argument, because no one can provided his or her services when there is no further charm on that argument. So Negotiation can only be done when WIN WIN situation is occured between both parties.

Quand le client commence à hésiter  et on constate qu'il n'est pas convaincu.