• Congratulations to the Class of 2024 on your results!
    Let us know how you went here
    Got a question about your uni preferences? Ask us here

Simple homework economics prelim stuck. (1 Viewer)

Brock1

New Member
Joined
Dec 19, 2015
Messages
14
Gender
Male
HSC
2017
Screen Shot 2016-02-06 at 7.56.49 PM.png

Help and explaination would be appreciated xD
 

aoc

Active Member
Joined
Jan 8, 2016
Messages
166
Gender
Male
HSC
2016
for b) to produce the first 15 houses the clothing goes from 50 to 40. Therefore there had been a decrease of 10 clothing. As a result to produce the first 15 houses you had to forego 10 clothing.

c) To produce 15 houses you forego 10 clothing therefore the ratio is 15:10 if you simplify it you get 1:2/3

If someone could confirm if this is right that would be great because i kinda forgot if this is right myself
 

Simorgh

Active Member
Joined
Apr 27, 2015
Messages
462
Gender
Male
HSC
2017
for b) to produce the first 15 houses the clothing goes from 50 to 40. Therefore there had been a decrease of 10 clothing. As a result to produce the first 15 houses you had to forego 10 clothing.

c) To produce 15 houses you forego 10 clothing therefore the ratio is 15:10 if you simplify it you get 1:2/3

If someone could confirm if this is right that would be great because i kinda forgot if this is right myself
For question b) wouldn't you have to do forgone clothes (10)/gained houses (15) to find out the opportunity cost, so basically 10/15=0.67? Thats the way my teacher told me to answer an opportunity cost question with that formula.

For question c) I never learnt about the marginal rate of substitution what exactly is it? How is it different to opportunity cost?
 

BLIT2014

The pessimistic optimist.
Moderator
Joined
Jul 11, 2012
Messages
11,591
Location
l'appel du vide
Gender
Undisclosed
HSC
2014
Uni Grad
2018
For question b) wouldn't you have to do forgone clothes (10)/gained houses (15) to find out the opportunity cost, so basically 10/15=0.67? Thats the way my teacher told me to answer an opportunity cost question with that formula.

For question c) I never learnt about the marginal rate of substitution what exactly is it? How is it different to opportunity cost?
The marginal rate of substitution (MRS) can be defined as how many units of good x have to be given up in order to gain an extra unit of good y, while keeping the same level of utility.

E.g Change in x over Change in y.

It's linked with indifference curves, but I don't think you learn them in preliminary economics. It deals with the concepts of trade offs and ability to satisfy peoples wants and needs, given the fixed number of production possibilities.
 
Last edited:

fnawabi98

New Member
Joined
Nov 15, 2015
Messages
14
Gender
Female
HSC
2016
Whoops! Yeah, sorry. Don't know why I did that.
Hahaha, no it's cool, I just had a serious moment of self-doubt and needed to make sure.

Sent from my SM-G920I using Tapatalk
 

aoc

Active Member
Joined
Jan 8, 2016
Messages
166
Gender
Male
HSC
2016
wait so is the opportunity cost 10 or 0.67 now im confused lol
 

Orwell

Well-Known Member
Joined
Dec 2, 2015
Messages
830
Gender
Male
HSC
2017
The opportunity cost is 10 mate.
 

BLIT2014

The pessimistic optimist.
Moderator
Joined
Jul 11, 2012
Messages
11,591
Location
l'appel du vide
Gender
Undisclosed
HSC
2014
Uni Grad
2018
Wait, so what's the difference between the opportunity cost and the marginal rate of substitution??? I'm confused..

Sent from my GT-I9506 using Tapatalk

Opportunity cost represents the alternative use of resources. Often referred to as the ‘real’ cost, it represents the cost of satisfying one want over an alternative want.
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top