Purchase Solution

Market Equilibrium in Perfect Competition

Not what you're looking for?

Ask Custom Question

1.Use the following to demonstrate why a firm producing at the output level where MR=MC will also be able to maximixe its total profit. ( ie be at the point where marginal profit is equal to zero
P=170-5Q
TC+ 40= 50Q + 5Q2 please show the steps

2.In a perfectly competitive market a firm had to be either "good or lucky" explain what is meant by this statement Illustrate with the use of a diagram

Purchase this Solution

Solution Summary

This solution provides the steps to determine marginal cost and uses that to determine the optimal price and quantity in a perfectly competitive market.

Solution Preview

It is said that to maximize profits we need the condition that MR = MC.

The easiest way to look at it is just look at the graph. MR is the total revenue from each additional unit, and marginal cost is the cost for each additional unit. When MR = MC, the two are equal, each additional unit provides you just enough to meet the cost. If you raise the quantity further, MR falls, while MC rises. Thus each unit that you sell can no longer cover its cost, MR < MC and the firm has to pay for this from their own pocket, and hence profits will fall.

For this question you have the following:
Demand: P = 170 - 5Q
So we can find the MR as the curve with same intercept and twice the slope:
MR = 170 - ...

Purchase this Solution


Free BrainMass Quizzes
Elementary Microeconomics

This quiz reviews the basic concept of supply and demand analysis.

Economic Issues and Concepts

This quiz provides a review of the basic microeconomic concepts. Students can test their understanding of major economic issues.

Economics, Basic Concepts, Demand-Supply-Equilibrium

The quiz tests the basic concepts of demand, supply, and equilibrium in a free market.

Basics of Economics

Quiz will help you to review some basics of microeconomics and macroeconomics which are often not understood.

Pricing Strategies

Discussion about various pricing techniques of profit-seeking firms.