Mishal Alotaibi
PART 1
(C) Make up/invent your own (hypothetical) company or start up for one
product
PART 2
After choosing either a,
b, or c, write up a synopsis about the company (i.e. what they sell/produce,
target demographics, history of the company, etc.)
Xpyne is a phone manufacturing company which is located in Cape
Town, South Africa. It specializes in the manufacture of smartphones and
offering custom production for large companies. The smartphones produced by the
company run on an android operating system 5.0 lollipop or commonly referred to
as android L. The company was launched
by Edwins Naminaque in 2004 March to offer the natives and other individuals in
Southern and central Africa access to quality gadgets at an affordable price.
The company’s earnings have increased steadily and it has gained popularity to
other parts of Africa and the world in general. A recent study done by Synovate
Africa has revealed that one out of 300 Africans uses an Xpyne device. The
company has a target of selling its devices in Europe and Asia as from the next
financial year.
Then, determine the
following:
·
Find total fixed costs--Startup
costs (if you can, try to get/make a list of startup costs and dollar amounts.
For instance, heating a building, rent, supplies, internet, etc.)
·
Find variable costs—cost
for producing one additional unit/quantity of good
·
Determine the price for
which the company sells a unit/quantity of good (this will be needed to
determine the revenue function. If the company sells one unit for $250, then
the revenue function will be R(q) = 250q)
·
Find the cost function
·
Find the revenue
function
·
Find the profit function
·
Determine the break-even
point value
·
Graph the cost function
and the revenue function on the same grid and mark the break-even point and its
value on the graph
·
Interpret the meaning of
the break-even point on the graph and interpret the graphs themselves in terms
of slope (i.e. marginal cost and marginal revenue)
·
Graph the profit
function on its own grid and
mark and interpret the break-even point and its value on the graph
·
Interpret the meaning of
the graph of the profit function
Fixed costs
The company has fixed
costs of approximately $12000 per day. This consists of $7000 supplies, $1000
heating costs, $3000 internet costs and $1000 rent.
Variable costs
In order to successfully produce one device, the company spends
approximately $100. It then sells the device at $180 to the retailers who can
then sell to the consumers at prices dependent on location and other factors.
The cost function for the production is equal to the fixed costs +
variable costs
= 12000 + 100q
The revenue function will be equal to price * quantity
= 180q
The profit function will be equal to Total revenue – The total
cost.
= 180q – (12000 + 100q)
Break- even value
This occurs when total
revenue = total cost
Thus; 180q = 12000 + 100q
80q = 12000
Q = 150
The revenue = p* q
= 180 * 150
= 27000
Thus break even value = $27000
A graph showing the break- even point, revenue and the cost
functions.
Assuming that 100 is the number of items produced, we come up with
the following graphical representation.
Graph showing the break-even point, revenue and cost functions

The revenue function
27000
12000 Break-even point
Cost
function
Quantity of smartphones 150 200
The break- even point on
the graph is a point where the total revenue = total cost (TR = TC)
It is a point below which a company will make a loss and above
which it will make a profit.
It is the point of intersection of the Revenue and cost function
on the graph.
The profit function graph:
Break-even
point Revenue function
Cost function
27000
100
-12000
Explaining the profit function:
The profit function shows the profits that the company makes with
respect to the quantity produced and at the given price level. Profits are
accrued at 100 smartphones.
PART 3
For an actual company or
start up, find out how many units are sold on a daily basis (for a hypothetical
company, choose a number of units you would like to produce on a daily basis)
·
Determine how many units
of the product are produced on a daily basis (so q = n, where n is the number
of units produced daily. For instance, maybe
n is 150, so q = 150 units)
·
Plot the point of the
number of units produced daily on the cost and revenue graphs
·
Determine the marginal
cost for producing the nth unit (where q = n is the number of units produced on
a daily basis. so, if n from above is 150 units, find the marginal cost for
producing q = 150 units)
·
Find the average cost of
producing the nth unit (where q = n is the number of units produced on a daily
basis. so, if n from above is 150 units, find the average cost for producing q
= 150 units)
·
Graph the slope of the marginal cost of q
= n and the slope of the
average cost of q = n on the same grid
Then answer the
following questions:
1) Is the marginal revenue less than or greater than the marginal
cost at q = n? Explain.
2) Is the number of units sold daily (q =n) after or before the
break-even point? What does this mean?
3) If production is increased by one extra quantity per day (i.e. if
q = n + 1)) will the company continue to make money? Explain. (be sure to reference the formulas R(q + 1)
– R(q) and C(q + 1) – C(q) in your explanation)
4) At q = n, does an increase of production increase or decrease the
average cost for the company?
5) Explain whether increasing or decreasing average costs would be
better for the company.
Marginal cost for producing 200 units:
The company incurs a cost of $150 * 100
= $15000
Thus total cost = 12000 + 15000
= 27000
Average cost of producing 150 smartphones:
(27000 /150)
= $180
To produce 200 units, the cost will amount to:
Fixed costs + (200 * 100)
= 12000 + 20000
= $32000
The cost of producing (200 -150) units is:
32000 – 27000
= $5000
The marginal cost is the cost of producing one extra unit thus:
Marginal cost = (5000/50)
= 100
Graph of Average cost
and Marginal cost
![]() |
Average
cost
180
Marginal
cost
100
No
of smartphones produced 150
Is the marginal revenue greater than the marginal cost at q=n?
Why?
The marginal revenue is greater in value than the marginal cost at
the point q =n. This is because any additional production does not increase the
production costs.
The company will still operate comfortably because the revenue is
greater in value than the costs incurred.
Will the company still make profit if they increased their
productions?
The cost of manufacturing 150 smartphones is $27000
The cost of manufacturing 151 smartphones = $27100
Extra cost incurred = $100
Revenue from selling 150smartphones = 150 * 180
= 27000
Revenue from selling 151 smartphones = $27180
The extra revenue realized = $180
Thus profit = 180 – 100
= $80.
Conclusion: The Company will increase the amount of profit if they
increase production.
Does average production cost decrease with increased production?
The average cost for producing 150 smartphones is $27000 / 150
= $180
The average cost of producing 151 smartphones is 27100 / 151
= $179.470
Therefore, an increase in the quantity of smartphones produced
decreases the average cost of production significantly I.e. (180 – 179.470 =
$0.53)
PART 4
1. Provide an analysis of how you think the company will do over the
next five years based on all of the information you have gathered from your
experiment.
2. In other words, explain whether or not you think the company will
thrive, struggle, or tank within the next five years. Give mathematical and economic/social
reasoning for your explanations.
An analysis on whether the company will thrive in the next 5 years
The company will thrive in the next five years. This is because
currently they are making profit with the number of smartphones they are
currently producing and at the given price level.
Profit = Total revenue – total cost.
For the necessary profit maximization condition, TR = TC
Given 150 units each incurring $100 to produce with a fixed cost
of $12000
TC = 12000 + (150 *180)
= 27000
TR = 150 * 180
= 27000
Thus the necessary condition for profit maximization has been
satisfied.
The profits will increase significantly if they increase the
number of units they are producing since it will lower the average costs while
increasing the amount of profit.
With every extra unit produced, a profit of $80 is realized.
Consequently,
An increase in the quantity of smartphones produced decreases the
average cost of production significantly I.e. (180 – 179.470 = $0.53)




A little bit all over the place but im assuming those were just technicall issues, so ignoring that this was great, really like the computer drawn graphs; real easy to read.
ReplyDeleteYour graphs look accurate and are well done. Good job!
ReplyDeleteYour calculations seem good and your graphs are good too.
ReplyDeleteYour company seems really cool.
ReplyDeleteBut I think this needs to be a little more organized.
Overall, the data seems pretty good and accurate.
I do agree with everyone else. Interesting post, but will need a little work on the organization... Thanks.
ReplyDeletemishal,
ReplyDeleteyour business idea is good. it was a little hard to follow your post with some of your graphs and the placement of some of your text. your calculations are accurate, although, you did forget to include your units with some of them, and your marginal cost and average cost graph is not correct, but other than that, good job.
professor little