In Micro  Economics, types of market structure occupy central position, in some cases market forces decides what price to be charged whereas in other firm decide how much it should charge so that profit is maximized.Some time firms have to take social issue into consideration and use technology accordingly either due to pressure by the govt or due to social norms.  This course explain how firm decide how much to produce and how much to charge. It also explain how government intervene through taxes,subsidy,price ceiling, price flooring,etc.I also explain how firm react when government intervene.By going through this course student will be able to answer for any level of economics course.