Western boxing contains some real gold for the serious devotee of serious self-defense.
One of the main reasons boxing is effective ( in my opinion)
.you punch a lot harder compared too other martial art punches
.The punches in boxing uses the entire body which other martial arts uses the weight of your arm for punch power (EX:karate front punch)
.people in boxing actually spar to improve,instead of front punching the air and doing katas.
To the first point..not necessarily so.
One strength of boxing is in the conditioning, 'economical' methodology, yes.
No, other arts do not "just use the weight of your arm" that is a naive statement to make.
Other styles also spar..
The question should possibly be "At ( insert situation here ) why is boxing so effective...?"
I would say the punches to the head, and learning to work through that, added to the massive money at stake, for some time now, makes boxing the most worked out martial art.
I'm not saying it's the most effective overall, but I believe the millions at stake, have spurred the most precise examination of techniques and the strategic/tactical implications of them, in an alive enough setting, to count heavily, in a str33t setting. I would say, that the odds of meeting a dangerous str33t opponent, are highest for a person training boxing, more than another art/style/sport.
Boxing goes fairly quickly to sparring, and learning the skill of working under pressure, and sometimes inevitably with thy bell rung, a bit.
#edit# whoops missed the main point.
There were techniques that were taught as being very difficult for a boxer to counter, which worked fine 'in theory' but which I couldn't make work. Not to say someone more proficient couldn't, but it definitely took the wind out of my imaginary sails.