Consumer Utility, Marginal Utility, and Marginal Rate of Substitution

Рет қаралды 125,412

10 жыл бұрын

This video examines 5 different utility functions, deriving their corresponding marginal utility functions and solving for the marginal rate of substitution.

Пікірлер: 59

@stephentran16 Жыл бұрын

This many years later, you sir are still helping students with their homework.

@ramdevgiri911 3 жыл бұрын

Sir greetings ..you have been the one most significant tutor for me...I don’t simply understand what teachers teach me ...if you were nor here I would have failed in my classes always ...now i have getting good marks and all of credit , all of credit totally i wanna give to you,,,,you made me so easy to understand ,,

@734833 3 жыл бұрын

Exactly what I looked for 3 hours. Thanks

@uyangabatbold6122 8 жыл бұрын

This video was very useful. Thanks a lot!

@awardc2389 2 жыл бұрын

Thanks for the easy to understand examples

@martaschnitzer 3 жыл бұрын

thank you so much this is very helpful youre the best

@sithuminijayasekara4782 2 жыл бұрын

thank you .this video is very useful

@callumhatton8354 3 жыл бұрын

Who's watching in 2020?

@johnblah1040 2 жыл бұрын

2021

@user-halathegirl Жыл бұрын

2023

@josephchristian2386 9 ай бұрын

2023✋️

@theummahunderthespotlight 6 ай бұрын

2024

@jesusistheway1820 5 ай бұрын

2020 you say. 2023

@aberaabeba2653 6 ай бұрын

thank you teacher this is amezing video it helps me

@karolinesheefeni8121 Жыл бұрын

Thank you very much 🎉

@davecollins7427 3 жыл бұрын

why did you derive in the beginning? how did that get the MU?

@kerrykamala947 Жыл бұрын

I would like to raise an argument, isn't the Marginal Rate of Substition supposed to have a negative sign for instantance MRS = -MU`/MU``

@thePrahoable 7 жыл бұрын

OK I have a question why on the first two problems after taking the derivatin of MUx you added also the y and vice versa and on the last two you didn't add the second factor near the derivative of the first? Thanks a lot very useful but this question came into mind.

@lolita55ful 5 жыл бұрын

exactly idk why

@Camcrazy530 5 жыл бұрын

Agreed..... wtf

@Jimmyczech1 4 жыл бұрын

@@Camcrazy530 because in the first few examples he is multiplying the x and y and in the other cases (where he doesn’t use the Y) he’s adding the two. Derivative of x*y by x = y. Derivative of x+y by x is 1.

@isaacgomez6570 11 ай бұрын

@@Jimmyczech1thanks for clearing that up. I was confused for a second there

@Eddy.aamusic 5 жыл бұрын

The only thing I dont understand is how you got the y/2x , the exponent part I dont get I understand how you got 2 but not how the exponents are just gone.

@Lucas-jc2rq 4 жыл бұрын

he missed the negative. it should be y/2x^-1

@cosmogamer9914 4 жыл бұрын

@@Lucas-jc2rq nope, he was right

@beastbros45 3 жыл бұрын

What does it help if all you do is get the answer, I don’t know how to do it

@Weird_Wacky 2 жыл бұрын

thank you so much

@EconomicsinManyLessons 2 жыл бұрын

You are welcome!

@shantaislamdipa8304 2 жыл бұрын

But Why didn’t MRS Equation Being negative?

@mercytuerijama6698 5 жыл бұрын

since the 3 is brought down already, from where does the square come on the Y

@EconomicsinManyLessons 5 жыл бұрын

You need to subtract 1 from the exponent on Y, which gives Y^(3-1) = Y^2. I did the same thing for the exponent on X.

@abby-cv4xc Жыл бұрын

Kaç video izledim, 8 yıl önce 8 dakikada anlatılmış video etmiyor

@sebastian-daquanglocknerjr1883 3 жыл бұрын

whose economics professor is using cruise control and just sending you here?

@Thebt7 10 жыл бұрын

Why is the marginal utility for y when derived 3x^2 y^2. sorry my calculus is very bad but i could not figure it out.

@EconomicsinManyLessons 10 жыл бұрын

U = X^2Y^3 The partial derivative of U with respect to Y = 3X^2Y^(3-1) = 3X^2 Y^2. Notice that the exponent on the Y term was brought down in front and then we subtracted 1 from the exponent on Y, leaving Y raised to the 2nd power. Another way of doing this, which might be easier to understand, is to rewrite the utility function as U = bY^3, where b = X^2. The derivative of bY^3 = 3bY^2. Next, substitute X^2 for b to get your final answer: 3X^2 Y^2.

@Thebt7 10 жыл бұрын

1sportingclays Thank you, I've watched a couple of times now, starting to pick it up now :)

@yashodaravithanage9686 3 жыл бұрын

Thank you very much, sir. but I have some questions in the last few examples. why you didn't add constant factor to the derivative factor

@utkarshmantri7958 2 жыл бұрын

it's a partial derivative, the constant is ignored

@EndriHoxha-pz1bt Жыл бұрын

But he did at the first example

@Tatsgirl490 7 ай бұрын

Im so confused on how we get the final answers for the examples , can someone please help me understand how exactly we came from 2xy^3/3X^2y^2 = 2y/3x and 1/3X^-2/3Y^2/3÷ 2/3X^1/3Y-1/3= Y/2x 😭😭💀

@SidraKhatoon-ml2ft 7 жыл бұрын

derive marshallian demand function

@rajvirsingh-co1fu 2 жыл бұрын

How to solve u(x,y)=x÷logy

@barovierkevinallybose1040 5 жыл бұрын

shouldn't there be a minus sign before ur result?

@EconomicsinManyLessons 5 жыл бұрын

You would only put a minus sign in front of the MRS results if you wanted the slope function of the indifference curve.

@shyrese139benjamin4 9 ай бұрын

How do u derive the demand function of X and Y?

@EconomicsinManyLessons 9 ай бұрын

Hope this helps: kzfaq.info/get/bejne/oKqSibqS3pzHYmQ.htmlsi=tJxxucTZrc5oXop7

@ShrutiSingh-ty5gu 3 жыл бұрын

Sir how do we derive the equation of equi marginal utility

@EconomicsinManyLessons 3 жыл бұрын

This may help: kzfaq.info/get/bejne/bK5kjat9qajWmo0.html

@someonethirsty1957 6 ай бұрын

Im sure this is wrong. Isnt marginal utility supposed to be diminishing? Wouldn't the marginal utlity be increasing in the first example?

@EndriHoxha-pz1bt Жыл бұрын

Who can please answer to this: U=x²+4xy+4y²-20

@changeme454 4 жыл бұрын

wow

@arnohaoseb351 6 жыл бұрын

(B,Z)=AB^1/a Z^1/B What's the marginal utility

@rabeccakatongo9493 4 жыл бұрын

I didn't really understand the entire explanation

@douga.3666 10 ай бұрын

No i did not go to university... i went to youtube academy)))

@tom47235 Жыл бұрын

How come 2/3 - 1 = -1/3?

@EconomicsinManyLessons Жыл бұрын

2/3 - 1 = 2/3 - 3/3 = -1/3. (I changed - 1 to - 3/3 to get the same denominator in the other term, 2/3).

@tom47235 Жыл бұрын

@@EconomicsinManyLessonsthank you for that

@pulltheskymusicgroup4475 4 жыл бұрын

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