Monopoly: Consumer Surplus, Producer Surplus, Deadweight Loss

In video, the inverse Market Demand is P = 130 - 0.5q and MC = 2q + 10.

This video shows how to solve for consumer surplus, producer surplus, and deadweight loss under monopoly.

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[laurenbenedict]

thank you so much- i was about to cry 9 minutes ago, but now i think everything will be ok :)

[ramanathansundaram]

Dear Professor,


This video is a gift for all who want to learn monopoly profit maximization, you did it in an easy and understandable way, now i can face my exam with ease.


Thanks a lot :), keep doing such good work.

[EconomicsinManyLessons]

To find where the demand curve crosses the x-axis, set P = 0 in the demand equation and solve for Q. For example, if P = 130 - 0.50Q, plug 0 in for P to get: 0 = 130 - 0.50Q. Now, solving for Q, we get 130 = 0.50Q, which simplifies to Q = 130/0.50 = 260.

[sonofhell]

This video is a life saver. Neither the textbook nor professor for my econ class would explain how to find the cs and ps but this video explained it super well 🙌🏽

[CoZedyret]

Thank you for a very thorough and understandable explanation. I have my exams tomorrow, and neither the text book nor the teacher found it worth mentioning how you find the point on the price axis that you need to calculate producer's surplus!

[grivalodon]

Thanks for the videos Professor, you have really helped me understand stuff for my upcoming Microeconomics exam! One quick note: On the DWL calculation, the base of the DWL triangle is 110-40, not 110-90. So, the DWL turns out to be 70x8/2=280$. Other than that, great and informative vid as always!

[kacperzygmunt]

Mate, this is great I spend 4 hours looking how to use MC to find price and you are the first one that made understand it, cheers to you ☺ .

[michellemiddleton]

Thank you so much for such a clear and concise video. You've saved hours of frustration trying to learn from textbooks that offer no explanation

[bria]

Thank you very much. Your videos are very helpful especially before exams. You should have 1 million views.

[몬알몬알]

your video is better than my professor’s lecture😂 thank you

[abrahamzimba]

I think you have messed the marginal revenue function, the slope of MR should be double the slope of demand function p=130+2q. hence the mr=130+10q

[reiyaranirama]

Oh...ur vdos are such a Life savior...😂😂👍...

[AudreyChong-vlgd]

Hello!, how do you explain if the monopoly is efficient or inefficient using this graph as an example?

Btw, super great video.. it is what i am looking for!! Thank you so much

[niharikasrivastava]

I think there is a mistake in ascertaining the MR function above...since the TR function is 130q-5q². The derivative of 130q will be 130 and the derivative of 5q² becomes 10q so the MR function becomes 130-10q over there and the profit maximization quantity is 10 units this way

[vincentanon]

Thank you so much Sir, amazing video, I hope you have a great day

[abdullateef]

Dear Professor, there is a mistake for the derivation of marginal revenue the answer gotten ought to be 130-10q not 130-q... I guess that should be an oversight! Thank you. But the fact is i understand all the procedures. Kudos

[eltonloverboy]

When you differentiate the TR i think we should get 130-10q

[baoquoc]

Thank you very much, your explaination is much more easier than my teacher

[idrisa]

That was a great video my man helped me a tonn!!

[abrorbekashirbaev]

where did you get MR=130-q, ?but it would be MR=130-10q