Business Economics Flashcards

1
Q

What is Labor Productivity?

A

Labor Productivity refers to the amount of output produced by each worker at a particular time range.

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2
Q

20 workers made a total of 2,000 units of output in 2 hours. Calculate the labor productivity.

A

Since labor productivity is the amount of output made by each worker on average, you can divide 2,000 by 20 to get 100 output produced by each worker in the 2 hour time frame.

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3
Q

All other things being equal, which one of the following situations always results in a rise in labor productivity?

A - Output falls at a slower rate than the fall in the number of workers employed

B - Output falls at a faster rate than the fall in the number of workers employed

C - output rises at a slower rate than the rise in the number of workers employed

D - Output always rises as the number of workers employed increases.

A

A.

Going through each scenario:

D -> incorrect because labor productivity is staying constant - each worker isn’t going to be producing more if there are more workers as output rises.

C -> incorrect because more workers dealing with a lower output decreases labor productivity (the amount of output made by each worker) as each worker doesn’t have to make as much if there are more of them.

B -> incorrect because ultimately, again, there are more workers dealing with a lower output which decreases labor productivity as each worker doesn’t have to make as much if there are more of them.

A -> correct because there is more output for less workers than the other 3 scenarios so workers are forced to work harder (you can assume this due to the word ‘output’) therefore more output is being made by each worker.

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4
Q

Describe two things that can improve labor productivity.

A

Better training - this may mean each worker is able to produce more at once if they are better at it (as a result of training), increasing labor productivity.

Improved technology - improved technology can speed up the rate of production so workers may be able to make products at a faster rate, meaning that each worker is able to make more products on average, increasing labor productivity

Specialization - this refers to when workers are assembled to work on only one of many tasks in the production process. Since workers are repeating the task over and over again they are likely to become considerably better at it, increasing labor productivity on average as goods are assembled/created quicker.

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5
Q

Describe specialization and the division of labor.

A

The division of labor is a type of specialization where production is split into different tasks and specific people are allocated to each task, e.g. in making a stool - one person could make the legs and another could make the seats.

Adam Smith explained the increase in productivity that could be achieved through the division of labor. He said that one untrained worker wouldn’t even make 20 pins per day, but 10 workers, specializing in different tasks, could make 40,000.

It’s not just workers who specialize, whole firms and even whole countries have specialized to an extent.

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6
Q

What are the advantages and disadvantages of specialization?

A

Advantages:

People can specialize in the thing/task they are best at, meaning that they will concentrate all of their time on that thing/task, which can lead to better quality and a higher quantity of products for the same amount of effort overall - i.e. increased labor productivity.

Specialization leads to more efficient production which helps to tackle the problem of scarcity because if resources are used more efficiently, more output can be produced per unit of input.

Training costs are reduced if workers are only trained to perform specific tasks.

Disadvantages:

Workers can end up doing repetitive tasks, which can lead to boredom.
This is a big issue, as this means that specialization can lead to a higher turnover rate. The rate of turnover refers to the rate at which employees are leaving, having to be replaced.
As well as this, boredom usually leads to a lack of motivation which decreases the productivity of the workers, leading to lower labor productivity overall.

Countries can become less self-sufficient - this can be a problem if trade is disrupted for whatever reason, like a war. For example, if a country specializes in manufacturing, and imports all its fuel (which mean it doesn’t produce it, it gets it from somewhere else), then that country could be in trouble if it falls out with its fuel supplier. This means countries are more reliant on trade and often can’t function entirely by themselves.

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7
Q

Money in trade is essential.

List two features of money that makes it desirable when it comes to trade.

A

Money is a medium of exchange - it’s something both buyers and sellers value and that means that countries can buy goods, even if sellers don’t want the things that the buying country produces.

Money is a measure of value - e.g. the value given to a good (such as a barrel of oil) can be measured in US dollars - this makes the cost of goods or services based on quantitative terms so individuals know how much to pay for a specific thing.

Money is also a method of deferred payment - money can be paid at a later date for something that’s consumed now, e.g. people often borrow money to buy a car or pay university fees.

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8
Q

What is a medium of exchange?

A

A Medium of exchange is a term in economics referring to any item that is widely acceptable when being used in exchange for goods and services.

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9
Q

What is a firm?

A

A firm is any sort of business organization, like a family-run factory, a dental practice or a supermarket chain.

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10
Q

What is an industry?

A

An industry refers to all the firms providing similar goods and services.

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11
Q

What is a market?

A

A market contains all the firms supplying a particular good or service and the firms or people buying it.

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12
Q

What is the formula for profit?

A

Total revenue - Total cost

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13
Q

What is the short run?

A

The short run is the period of time when at least one of a firm’s factors of production are fixed.

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14
Q

Describe why the short run of capital in a large steel manufacturer is generally longer than a small store.

A

if a steel manufacturer has a fixed capital, it will have to expand which is very expensive and is often long - several years, including the fact advanced technology will have to be assembled as well in order to make it work.

Small stores, however, can solve the factor of production being fixed much faster as extensions of the store will be much shorter and won’t need the assembling of advanced technology like a steel manufacturer. This means it can last only a month or two.

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15
Q

What is the long run?

A

The long run is the period of time when all factors of production can be varied.

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16
Q

What are fixed costs?

A

Fixed costs are the costs associated with the firm that don’t vary with output.

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17
Q

What are variable costs?

A

Variable costs are the costs associated with the firm that varies with output, generally increasing as output increases.

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18
Q

Give an example of something that would incur fixed costs.

A

Rent

Rent does not increase as you increase sales.

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19
Q

Give an example of something that would incur variable costs.

A

Raw materials

More output may mean more raw materials, which cost more.

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20
Q

Give the formula for Total Cost.

A

TC + TFC + TVC

Total Cost + Total Fixed Cost + Total Variable Cost

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21
Q

What is Average Cost (AC)?

A

Average Cost refers to the cost associated with each unit produced.
It is also known as Average Total Cost (ATC).

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22
Q

How do you calculate Average Cost (AC)?

A

AC = TC / Q

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23
Q

How do you calculate Average Fixed Cost (AFC)?

A

AFC = TFC / Q

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24
Q

How do you calculate Average Variable Cost (AVC)?

A

AVC = TVC / Q

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25
Q

How can you calculate MC?

A

Change in TC / Change in Quantity

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26
Q

Quantity went from 5 to 10.
TC went from 50 to 120.

Calculate MC.

A

60 / 5 = 12

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27
Q

What is Marginal Cost?

A

Marginal Cost (MC) refers to the extra cost associated with the production of the last unit of a good.

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28
Q

Draw a graph showing the relationship between AC and MC in the short run.

If you’re looking to be extra, draw AFC!

Describe what is shown in the graph (only do the curves that you drew).

A

Firstly, when MC is lower than AC, AC will be falling and this is because each extra unit produced will decrease the average cost (adding something smaller than the average will decrease the average).

After more output is added, eventually MC will be at the optimal capacity limit - the firm is producing at the quantity of goods wherein each unit of output is being produced at the lowest cost possible.

However, if more output becomes added, MC becomes to increase in the short run due to the law of marginal diminishing returns.

So, as MC increases, it eventually surpasses AC in costs - when MC is over AC, AC starts to rise. The point where MC and AC meet is the point of productive efficiency, as AC = MC.

AFC initially is high as here is a low amount of output to divide the cost by but as there is more output, AFC decreases as AFC does not change in response to changes in output and more output means that AFC is divided by more units of output decreasing the average fixed cost.

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29
Q

What is marginal product?

A

Marginal Product (MP) is the additional output produced by adding one more unit of a factor input.

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30
Q

What is a factor input?

A

Factor input refers to the addition of one of the four factors of production.

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31
Q

Show a graph that shows MP in the law of diminishing returns in the short run.

Label the following:

X and Y axis
Point of diminishing returns

Describe what happens in various parts of the graph.

A

https://media.discordapp.net/attachments/352951793187029005/821112568437276672/unknown.png?width=604&height=563

Initially, as you add more of a factor of production, the marginal product will increase - each unit of output added will add more output than the one before.

This might happen because more specialization is possible with more of a particular factor.

Eventually, if you keep adding units of one factor of production, the other fixed factors will begin to limit the additional output you get, and the marginal product will begin to fall. E.g. if a clothes manufacturer only has 5 sewing machines, employing a 6th machinist will probably add less output than employing the 5th did, and employing a 7th will add even less.

The point of diminishing returns refers to when MP starts to decrease - as factor input increases.

Eventually, MP goes under the graph which can occur if you add too much of a factor input - this is known as negative returns and it occurs because, for example, adding a 50th worker with only 5 machines to work one may start to do more harm and good as everyone gets in each others way and therefore each additional worker actually decreases your output.

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32
Q

What is the law of diminishing returns?

A

The law of diminishing returns says that if one variable factor of production is increased while the others stay fixed, eventually the marginal returns from the variable factor will begin to decrease.

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33
Q

Draw a graph showing the relation between MP and MC in the short run.

Describe and explain what is seen in the graph.

A

https://media.discordapp.net/attachments/352951793187029005/821113328164274212/unknown.png?width=676&height=564

As marginal product rises, marginal cost falls.
As marginal product falls, marginal cost rise.

Marginal cost will fall at a certain time period due to the fact that if you’re getting more additional output from each unit of input, then the cost per unit of that output will be greater.

Marginal cost will rise due to the fact that if you’re getting less additional output from each unit of input, then the cost per unit of that output will be greater.

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34
Q

https://media.discordapp.net/attachments/352951793187029005/821114994321129533/unknown.png?width=834&height=564

Using the image, find the output associated with:

  • The optimal capacity limit
  • Diminishing marginal returns

Describe the image.

A
  • Output 5 (MP 10)
  • Output 6 (MP 8)

Initially, as you add more unit of a factor input, marginal product, the amount of product made from each unit of factor input, begins to increase at an increasing rate. As you add more factor input, you will eventually reach optimal capacity limits which features the highest value MP can be at - the output featured in this area means that MC is lowest, as you produce more from each unit of factor input, your marginal costs decrease.

However, past the optimal capacity limit, you will reach the level of factor input wherein MP starts to decrease at a decreasing rate (and TP increase at a decreasing rate) - though still being positive, each unit of factor input begins to become less productive due to the law of diminishing marginal returns - one unit of factor input being variable is added with three other factors of production being fixed will eventually decrease marginal product.

35
Q

Calculate all blanks:

https://media.discordapp.net/attachments/352951793187029005/821123257973080064/unknown.png

A

SRFC is 30 for Output 1,2,3,4,5,6,7,8,9 and 10.

SRTC for 2 = 30+38 = 68
SRTC for 3 = 30+48 = 78
SRTC for 4 = 61+30 = 91
SRTC for 5 = 79+30 = 109
SRTC for 6 = 102+30 = 132
SRTC for 7 = 131+30 = 161
SRTC for 8 = 166+30 = 196
SRTC for 9 = 207+30 = 237
SRTC for 10 = 255+30 = 285
SRMC for 0 = - no output produced
SRMC for 1 = 22
SRMC for 2 = 16 
SRMC for 3 = 10
SRMC for 4 = 13
SRMC for 5 = 18
SRMC for 6 = 23
SRMC for 7 = 29
SRMC for 8 = 35
SRMC for 9 = 41
SRMC for 10 = 48
SRAFC 0 = -
SRAFC 3 = 10
SRAFC 4 = 7.5
SRAFC 5 = 6
SRAFC 6 = 5
SRAFC 7 = 4.29
SRAFC 8 = 3.75
SRAFC 9 = 3.333333
SRAFC 10 = 3
SRAVC 3 = 16
SRAVC 4 = 15.25
SRAVC 5 = 15.8
SRAVC 6 = 17
SRAVC 7 = 18.714
SRAVC 8 = 20.75
SRAVC 9 = 23
SRAVC 10 = 25.5
SRATC 0 = 30
SRATC 1 = 52
SRATC 2 = 68
SRATC 3 = 78
SRATC 4 = 91
SRATC 5 = 109
SRATC 6 = 132
SRATC 7 = 161
SRATC 8 = 196
SRATC 9 = 237
SRATC 10 = 285
36
Q

Calculate average goals per game.

https://media.discordapp.net/attachments/352951793187029005/821130716837576704/unknown.png

A
1 -  1/1  = 1 so 1 
2 - 4/2 = 2 
3 - 9/3 = 3 
4 - 13/4 = 3.25 
5 = 14/5 = 2.8
6 = 16/6 = 2.666667
37
Q

What is Productivity?

A

Productivity refers to the amount of output made from a single factor input.

38
Q

Draw the graph which represents the relation between MP and AP in the short run, Y axis being per factor input and X axis being output.

A

https://media.discordapp.net/attachments/352951793187029005/821135134903631932/unknown.png?width=611&height=564

39
Q

What is economies of scale?

A

Economies of scale refers to the cost advantages associated with being a larger firm that produces as a larger scale.

40
Q

What is the financial economies of scale?

A

Financial economies of scale refers to the fact that larger firms can often borrow money at a lower rate of interest - lending to them is seen by banks
as less risky.

41
Q

What is the risk bearing economies of scale?

A

The risk bearing economies of scale refers to the fact that bigger firms are more likely to survive downturns - this means that bigger firms are much more likely to take risks as losses are not as punishing since the cost of failure can be absorbed easier, usually because the firm has other activities making them profit.

42
Q

What is the marketing economies of scale?

A

Marketing economies of scale refers to how larger firms, since they have larger profit, have the capability to release more efficient and larger ad campaigns which allow them to generate faster sales.

43
Q

What is the purchasing economies of scale?

A

Larger firms making lots of goods will need larger quantities of raw materials, and so can often negotiate discounts with suppliers.

Because large firms will be the most important customers of suppliers (as they’ll put in the biggest orders), they’ll be able to drive a hard bargain, so they have buying power, similar to a monopsony.

44
Q

List 3 different types of economies of scale.

A
Marketing
Technical
Risk-Bearing
Financial
Managerial
Purchasing
45
Q

What is external economies of scale?

A

External economies of scale refer to the cost advantages outside the firm (externally) associated with being a larger firm.

46
Q

What is internal economies of scale?

A

Internal economies of scale refers to the cost advantages within the firm itself as a result of being a larger firm with higher scales of production.

47
Q

What is the diseconomies of scale?

A

Diseconomies of scale refers to the disadvantages associated with being a larger firm that produces as a higher scale.

Diseconomies of scale causes cost to rise as output rises - it usually is a product of firms being too big.

48
Q

Diseconomies of scale refers to the disadvantages of being big - list 3 disadvantages.

A

Wastage and loss can increase because you have more raw materials. This can be an issue and could lead to you being taxed.

Communication may become more difficult as a firm grows, which can mean that you may have issues with control when trying to manage the firm.

Managers may be less able to control what goes on, due to the fact that the firm is larger and therefore labor productivity can decrease due to the
fact that workers may be able to get away with doing less since the manager will constantly be supervising other workers with only so little time between
each person because there are just so many people.

As a whole industry becomes bigger, the price of raw materials may increase, since demand will be greater. This will increase the costs of production and so profit decreases.

49
Q

Draw the Long run average cost curve.
Remember to show:

Economies and diseconomies of scale
Y and X axis

A

https://media.discordapp.net/attachments/352951793187029005/822242179283943424/unknown.png?width=710&height=564

50
Q

Describe the long run average cost curve.

A

Firstly, in the short run, a firm has at least one fixed factor of production which means it operates on only one of the SRAC curves available from the long run average cost curve.

This means that if the firm were to increase output in the short run, by increasing its variable factor input, it moves along the SRAC curve. The minimum possible average cost at each level of output is shown by the LRAC. SRAC curves can touch the LRAC curve, but they can’t go below it.

In the long run, a firm can change all factors of production. When it does this, it moves onto a new SRAC curve and has access to every single one
along the LRAC curve, regardless of the level of output.

The LRAC curve is U-shaped. This is because, as you initially go down, you are experiencing internal economies of scale as you gain advantages from being a larger firm with more production, thus your minimum possible average cost is decreasing.

However, at a certain point, the LRAC curve levels out, and as more output increases, internal diseconomies of scale starts to occur, making LRAC rise, increasing the average cost for the firm due to certain circumstances such as the fact it may be harder to manage, or certain raw materials may be more expensive due to the high demand shown by the firm.

Y axis is average cost, X axis is output.

51
Q

Draw a diagram showing the LRAC curve shifting up.

Describe and explain the diagram.

A

https://media.discordapp.net/attachments/352951793187029005/822242963173408798/unknown.png?width=732&height=563

External diseconomies of scale will force the LRAC curve to shift upwards. This is due to the fact that average cost will be higher at all levels of output.
This may be due to the fact that the price of raw materials increase.

52
Q

Draw a diagram showing the LRAC curve shifting down.

Describe and explain the diagram.

A

https://media.discordapp.net/attachments/352951793187029005/822243355798929448/unknown.png?width=737&height=564

External economies of scale will force the LRAC curve to shift downwards. This is due to the fact that average cost will be lower at all levels of
output.

This may be due to the fact that better technology may increase the labor productivity of the firm, decreasing average cost.

53
Q

What does returns to scale mean?

A

Returns to scale refers to the quantitative change in output of a firm or industry resulting from a proportionate increase in all inputs.

54
Q

What is increasing returns to scale?

A

Increasing returns to scale refers to when a proportionate increase in all inputs cause a higher increase in output in a firm or industry.

55
Q

What is decreasing returns to scale?

A

Decreasing returns to scale refers to when a proportionate increase in all inputs cause a lesser increase in output in a firm or industry.

56
Q

What is constant returns to scale?

A

Constant returns to scale refers to when a proportionate increase in all inputs cause a proportional increase in output.

57
Q

Explain the difference between diminishing returns to a factor in the short run, and returns to scale in the long run.

A

The law of diminishing returns is a short run law, meaning that a variable factor, such as labour is combined with other factors of production, one of which, such as a factory, is fixed.

As output increases, we can guarantee that the law of diminishing returns will eventually set in. The law of diminishing returns show how output changes in proportion to factor inputs in the short run, as the fixed factor approaches and passes its optimal capacity.

Since the law of diminishing returns will be guaranteed to eventually set in, if it does occur, it will affect the marginal, average and total returns - total returns will be increasing at a decreasing rate, marginal returns decreasing following average returns decreasing.

Compared to this, returns to scale operate in the long run, when all factors of production are variable. Returns to scale refers to the quantitative change in output of a firm or industry resulting from a proportionate increase in all inputs, and so is a metric for the productivity of a firm when increasing the scale of production by all factors of production.

There are also different types of returns to scale - increasing, which refers to when a proportionate increase in all factor inputs cause a higher increase in output, constant, when a proportionate increase in all
factor inputs cause a proportional change in output and decreasing, when a proportionate increase in all factor inputs cause a lesser increase in output.

58
Q

What is the minimum efficient scale of production?

A

The Minimum efficient scale of production is the lowest level of output at which the minimum possible average cost can be achieved - it’s the first point
at which the LRAC curve reaches its minimum value. This is likely to be the optimal level of production.

59
Q

A firm is aiming for a particular level of output. Why might the firm not be able to reduce its costs to those shown on an LRAC curve for this level of output in the short run?

There is a possibility for the use of a diagram to explain this.

A

The firm may not be able to reduce its costs to those shown on an LRAC curve in the short run due to the law of diminishing marginal returns.

https://media.discordapp.net/attachments/352951793187029005/822242179283943424/unknown.png?width=710&height=564

As shown in the diagram, it is impossible for firms operating at SRAC1 to operate at output 5 - the minimum efficient scale of production - in the SR.

This is because of the fact that SRAC1 only covers a limited area of output and cannot cover more due to the large increase in average costs that occur due to the law of diminishing marginal returns - after SRAC1 decreases in average cost, due to the fact there may be spare capacity in the fixed factor of production, SRAC1 will start to increase in average cost, due to the law of diminishing returns - a variable factor input, such as workers, being added to a fixed factor of production, such as capital, will start to saturate the area and your MP decreases. Since your MP decreases and you are still paying the same amount of money for the new worker as you did the others, your marginal cost increases which reflects in the average cost increasing.

Due to the increase in average cost, SRAC1 is incapable of reducing its costs to operate at output ‘5’ on the LRAC curve in the SR.

Alternatively, in the long run, a firm will be able to operate at output ‘5’ easily as the LRAC curve is the sum of all SRAC curves and so you can change all your factors of production to move onto any SRAC curve you wish for any level of output without increasing costs. In the short run, you are incapable of doing this.

60
Q

What is Total Revenue?

A

Total Revenue is the total amount of money received, in a time period, from a firm’s sales.

61
Q

What is Average Revenue?

A

Average revenue is the average amount of revenue generated by each sale.

62
Q

What is Marginal Revenue?

A

Marginal revenue refers to the extra revenue received as a result of selling the final unit of output.

63
Q

What is the formula for total revenue?

A

TR = Q x P

64
Q

What is the formula for average revenue?

A

AR = TR / Q

65
Q

Look at the diagram and shade in the area that shows total revenue:

https://media.discordapp.net/attachments/352951793187029005/822245939401981992/unknown.png?width=741&height=564

A

https://media.discordapp.net/attachments/352951793187029005/822246155781537812/unknown.png?width=626&height=563

66
Q

What is average revenue equal to?

A

Demand

67
Q

Describe why the perfectly elastic demand curve states that AR = MR.

A

When demand is perfectly elastic, the price is the same, no matter what output level.

In this case, marginal revenue = average revenue, because each extra unit sold brings in the same revenue as all the others.

When average revenue is constant, total revenue increases proportionally with sales, so TR would be a straight line increasing at a constant rate.

68
Q

With a downward sloping demand curve, when is TR maximized?

A

When PED = -1 - the PED changes depending on where the firm is operating at the curve, so at that specific point.

69
Q

With a downward sloping demand curve, does AR = MR?

A

No.

70
Q

With a downward sloping demand curve, how steep is MR compared to AR?

A

MR is twice as steep compared to AR.

71
Q

Draw a diagram (two at once) showing the relationship between the position of AR and MR in relation to total revenue.

Describe the diagram.

A

https://media.discordapp.net/attachments/352951793187029005/822247768135303238/unknown.png?width=423&height=563

Firstly, the average revenue curve is also the demand curve - AR can be drawn as such. MR is twice as steep.

Even though AR and MR are highest at the top, TR is relatively low at the bottom. This is because the amount of output you are producing are very low - it is much to the left.

Y axis for both are revenue and quantity.

When MR = 0, TR is at its highest due to the fact that you have reached the optimal capacity limit and any further increase in output will cause diminishing marginal returns.

When AR = 0, TR = 0 as no revenue is being generated.

72
Q

What is marginal revenue equal to when total revenue is at its maximum?

A

0

73
Q

Is the price of a product the marginal revenue or the average revenue for that product?

A

Marginal revenue

74
Q

The table shows information on a firm’s revenue given different sales levels of its only product. Calculate the marginal revenue for each output level:

https://media.discordapp.net/attachments/352951793187029005/822249256026767370/unknown.png

Calculate the Marginal Revenue.

A
0 | MR = 0, none are being sold
1 | MR = 10 - MR = price here since 1 is sold
2 | MR = 6
3 | MR = 2
4 | MR = 0
5 | MR = -3
75
Q

What is normal profit?

A

Normal profit refers to when a firm is operating at the minimum amount of money needed to stay in the industry, where TR = TC.

The firm is making just enough money to pay all of its costs to justify staying in the industry.

76
Q

What is supernormal profit?

A

Supernormal profit refers to when a firm is gaining more money than what is needed to stay the industry, therefore TR > TC.

77
Q

Draw the diagram showing AVC, ATC, MC.

Include the Y axis.

With the graph, describe the following:

  • In the short run, when may a firm stay? When will the firm leave?
  • In the long run, when may a firm stay? When will the firm leave?

You can place prices at certain areas to describe this.

A

https://media.discordapp.net/attachments/352951793187029005/822939327940132945/unknown.png?width=774&height=564

Firstly, at the price of P1, a firm in the long run may stay in the industry, due to the fact they are operating the firm at normal profit - they are making the same amount of profit operating the industry as they would be if they were to leave it.

Another thing to include that is valuable is that in the long run, ATC = AVC, since there are no fixed costs in the long run. As a result, if the firm were to operate under P1, the firm would immediately leave the industry, as they make more losses operating the firm than if they just left the industry.

Secondly, at the price of P1, a firm in the short run will stay in the industry, due to the fact that they are the operating the firm at a normal profit - paying both of their AVC and AFC. If they were to leave the industry, they still need to pay their fixed costs, they can’t just stop paying it and so they make more money operating the firm than if they were to leave it.

However, at the price of P2, a firm in the short run may still stay in the industry, due to the fact that if they left they still have to pay fixed costs regardless and so the losses made by operating the firm is equal to the losses you’d experience by leaving the industry.

Nevertheless, if the firm in the short run operated under P2, it would leave the industry immediately and burden the losses due to the fact that more losses are made operating the firm than if they just left the industry.

78
Q

Draw the diagram for a price taker.

Show:
X and Y axis
The point of profit maximization

A

https://media.discordapp.net/attachments/352951793187029005/822929412126146622/unknown.png?width=716&height=564

79
Q

Draw the diagram for a price maker.

Show:
X and Y axis
The point of profit maximization

A

https://media.discordapp.net/attachments/352951793187029005/822930502717669456/unknown.png?width=582&height=563

80
Q

The diagram linked shows the costs and revenues for a profit-maximizing firm.

The most suitable action for the firm, assuming no changes in costs or demand, would be to put output at which letter shown?

https://media.discordapp.net/attachments/352951793187029005/822932395295768586/unknown.png?width=722&height=564

A

C since MR = MC, profit maximizing point.

81
Q

In a firm, MR is greater than MC. Should the firm generate more output or less in order to achieve the profit maximizing point MR = MC?

A

Increase output.

Think of it the help of the graph:

https://media.discordapp.net/attachments/352951793187029005/822933770562043904/unknown.png?width=759&height=563

MR will always be higher than MC if it is higher than it on a graph.

the MC curve generally slopes upwards and therefore you must increase output to go higher to touch MC for it to = MR.

82
Q

In a firm, MR is lower than MC. Should the firm generate more output or less in order to achieve the profit maximizing point MR = MC?

A

Decrease output.

Think of it the help of the graph:

https://media.discordapp.net/attachments/352951793187029005/822933770562043904/unknown.png?width=759&height=563

MR will always be higher than MC if it is higher than it on a graph.

the MC curve generally slopes upwards and therefore you must decrease output to go lower, so you touch MC for it to = MR.

83
Q

Some firms wish to maximize sales.

Give the formula that firms would operate at in order to maximize sales.

A

AR = AC.

It shows the highest level of output the firm can sustain (in the long run). Any more increase in sales would result in a loss and firm would leave the industry.

In the short run, the firm could operate on a loss even lower at AR = AVC due to the fact that you make the same amount of losses operating the firms than leaving (you have to pay fixed costs when you leave which also sum up AVC), but you generally don’t need to know this.