Why do some people believe in Karma?

To me karma is a life concept. Its real name is prime-cause, what the famous name is God itself. Karma didn't edge for anything, shape in circle, and endless rotating of white and black roles. Nothing can measure a karma. That's why.

Personally I do not believe in Karma, there are too many counter-factuals to believe that the Karmic effect takes place in the same life time. The alternative version in which the conditions of this life are the punishment or reward for a previous life are just an excuse to blame the poor and under-privileged for their own condition and reassure the consciences of the rich and powerful that oppress them. Perhaps that is way in India there are millions that live in poverty and oppression. all the best urban

It's all a matter of luck in my opinion. Karma is a primarily buddhist principle stating that for every bad/good deed an equally good/bad thing will happen to them. Mostly, when something bad happens to a bad person people all yell Karma all over the place, but if a good thing happens to said bad person, all we ever hear is "Why do good things only happen to bad people"