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EGT1 Task 1 Essay

In this Essay I am going to explain the relationship between marginal revenue and marginal cost, and the importance of these concepts for profit maximization. One approach for profit maximization is by looking at the total revenue (TR) to total cost (TC). This is where the quantity being generated is yielding the greatest difference between the TR and the total TC.

Another approach is using marginal revenue (MR) to marginal cost (MC). MR is the increase in revenue that results from the sale of one additional unit of output, and is calculated by the change in total revenue by the change in output quantity. Similarly, The change in total cost that comes from making or producing one additional item. You can figure out the profit-maximizing quantity of output by setting these two changes equal to one another.

The process to determine MR You must first calculate TR. TR = Q * P the quantity multiplied by the price. So as your quantity goes up you need to look at the difference in price then divide by the quantity. Example below,

Q
P
TR
MR
0
80
0

1
76
76
76
2
72
144
68
3
68
204
60
4
64
256
52
5
60
300
44
6
56
336
36
7
52
364
28
8
48
384
20

Since this example is increasing by a factor of 1 we only need to worry about the difference in TR but if it increase but a factor higher than 1 we would need to take the difference in TR and divide by the increase in quantity.

In our given example, below the MR starts a 150 and has a steady decrease in MR by a factor of 10 with every new unit made.

Q
TR
TC
MR
0
0
10

1
150
30
150
2
290
50
140
3
420
80
130
4
540
120
120
5
650
170
110
6
750
230
100
7
840
300
90
8
920
380
80
9
990
380
70
10
1050
570
60
11
1100
680
50
12
1140
800
40
13
1170
930
30
14
1190
1070
20
15
1200
1220
10

The steps for determining the MC is very similar to determining MR. However instead of using the TR you use the TC. Then calculate the change in cost when production increases by one unit. In our given scenario we see that the MC stays the same at $20 for the first two units but then steadily rises by $10 all the way to $150 for the 15th unit.

Q
TR
TC
MC
0
0
10

1
150
30
20
2
290
50
20
3
420
80
30
4
540
120
40
5
650
170
50
6
750
230
60
7
840
300
70
8
920
380
80
9
990
470
90
10
1050
570
100
11
1100
680
110
12
1140
800
120
13
1170
930
130
14
1190
1070
140
15
1200
1220
150

For our given scenario profit maximization happens on the 8th unit because at that unit we have the greatest difference between TR and TC at $540. Also we see that on the 8th unit MR and MC at equal at $80.

If MR is greater than MC the firm should increase their production to maximize profits. If MC are greater than the MR the the firm should decrease their production to maximize profits

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...អាណាចក្រភ្នំ អាណាចក្រភ្នំ គស​ 50-630 ទីតាំង * ៣០០លី លិចលីនីយ(ជនជាតិចាម) * ៧០០០លី Jenan(តុងកឹង) * ឈូងសមុទ្រធំមួយ * ទន្លេរធំមួយ លិចនឹងពាយព្យគឺសមុទ្រ * ១លី=៥៧៦ម=១៧២៨គម=> 1. កម្ពុជា 2. កម្ពុជាក្រោម 3. ថៃ(ភាគកណ្តាល) រាជវង្សមាន៖ 1. លីវយី(៥០-៦៨) 2. ហ៊ុនទៀន(៦៨) 3. ហ៊ុនប៉ានហួង៖ដែលជាមេទ័ពបានប្រើល្បិចវាយក្រុងទាំង៧នឹងបានដណ្តើមអំណាចពីព្រះ បាទហ៊ុនទៀន 4. ហ៊ុនប៉ានប៉ាង៖ជាកូនហ៊ុនប៉ានហួង 5. ហ្វាន់ជេម៉ាន់៖ជាអ្នកសំលាប់សោយរាជ្យបន្តរឺក៍ហ៊ុនប៉ានប៉ាងផ្ទេរអំណាចអោយ 6. គិនចេង(២២៥)៖ត្រូវជាកូនរបស់របស់ហ្វាន់ជេម៉ាន់ពីព្រោះគាត់បានស្លាប់ពេលវាយ នៅ គិនស៊ីន 7. ហ្វានឆាន(២២៥-២៤៥)៖បានសំលាប់គិនចេងដើម្បីសោយរាជ្យបន្តដែលត្រូវជាក្មួយហ្វាន់ជេម៉ាន់នឹងត្រូវជាបងប្អូនគិនចេង 8. ហ្វានឆាង(២៤៥-២៥០)៖ជាកូនពៅរបស់ហ្វានជេម៉ាន់បានមកសងសឹកនឹងសោយរាជ្យបន្ត 9. ហ្វានស៊ីយ៉ុន(២៥០-២៨៩)៖បានសំលាប់ហ្វានឆាងសោយរាជ្យបន្ត 10. ធៀនឈូឆានតាន(៣៥៧) 11. កៅណ្ឌិន្យ(៣៥៧)៖គាត់មានកូនពីរគឺស្រីឥន្រ្ទវរ្ម័ននឹងស្រេស្ធវរ្ម័ន 12. កៅណ្ឌិន្យជ័យវរ្ម័ន(៤៤២-៥១៤)៖មានបុត្រាពីរគឺគុណវរ្ម័នជាប្អូននឹងរុទ្រវរ្ម័នជាបងក៍ប៉ុន្តែគុណវរ្ម័នជាអ្នកសោយរាជ្យដែលត្រូវជាកូនកុលប្រភាវតីជាមហេសីរីឯរុទ្រវរ្ម័នជាកូនស្នំ។ដោយមិនសុខចិត្តព្រោះខ្លួនជាបងមិនបានសោយរាជ្យក៍ប្រើល្បិចសំលាប់ប្អូនដើម្បី សោយរាជ្យម្តង។ 13. គុណវរ្ម័ន 14. ចេនឡា ចេនឡា រុទ្រវរ្ម័ន(៥១៤-៥៥៦) គស ៥៥០-៨០២ 15. ឥសីកម្ពុស្វយម្ហូវ៖ 16. ស្រុតវរ្ម័ន៖ 17. ស្រស្ធវរ្ម័ន៖ 18. វីរវរ្ម័ន៖ 19. ភវរ្ម័ន(៩០០-៩២២)៖ * ទីតាំងរបស់ចេនឡានៅត្រង់តំបន់បាសាក់តាមដងទន្លេរមេគង្គដែលច្ចុប្បន្ននៅភាគ អាគ្នេយ៍ប្រទេសឡាវ...

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