Assignment:
What bend is added relies upon the sort of externality that is portrayed, yet not whether it is positive or negative. At the point when an externality emerges on the creation side, there will be two stock bends (private and social expense). In any case, assuming the externality emerges on the utilization side, there will be two interest bends all things considered (private and social advantage). This differentiation is fundamental with regards to settling shortcomings that are brought about by externalities.