1 - Arrogance is a combination of stubbornness, pride, and ignorance that there are other ways.
2 - Detecting arrogance in it's subtleties can tricky, but often times it's less subtle. A nice Star Wars linkage is 'only the Sith deal in absolutes'. Otherwise, you can detect when people avoid asking or answering questions that might allow other input.
3 - Some people probably become arrogant as a defense mechanism to being questioned. Often, by over compensating with confidence it can help you lead dictatorially. By being the loudest, most stubborn, and sometimes / most of the time right (to at least some degree) they will get their way by the passives in a group. More broadly speaking, arrogance is caused by a lack of perspective - an inability to perceive that someone else might bring ideas to the table or that you might be at all inadequate.
4 - Yes, it's always bad or at least not an admirable trait. Particularly when working with others. By being arrogant you will often miss different solutions that may be easier, quicker, more elegant, or better explained.
2 - Detecting arrogance in it's subtleties can tricky, but often times it's less subtle. A nice Star Wars linkage is 'only the Sith deal in absolutes'. Otherwise, you can detect when people avoid asking or answering questions that might allow other input.
3 - Some people probably become arrogant as a defense mechanism to being questioned. Often, by over compensating with confidence it can help you lead dictatorially. By being the loudest, most stubborn, and sometimes / most of the time right (to at least some degree) they will get their way by the passives in a group. More broadly speaking, arrogance is caused by a lack of perspective - an inability to perceive that someone else might bring ideas to the table or that you might be at all inadequate.
4 - Yes, it's always bad or at least not an admirable trait. Particularly when working with others. By being arrogant you will often miss different solutions that may be easier, quicker, more elegant, or better explained.