Monday 8 August 2016

Capital III, Chapter 43 - Part 4

The next set of tables show the situation where the price of production is falling. This can only be the case where the marginal productivity is rising, or else where land type A is pushed out of production, so that the more fertile, lower cost lands become the regulator.

Table XVI shows the situation where marginal productivity remains constant.

TABLE XVI
Type
of
Soil
Price of
Production
Shillings
Output
Bushels
Selling
Price
Shillings
Proceeds
Shillings
Rent
Shillings
Rent
Increase
B
60.00 + 60.00 = 120.00
12 + 12 = 24
5.00
120.00
0
0
C
60.00 + 60.00 = 120.00
14 + 14 = 28
5.00
140.00
20.00
20
D
60.00 + 60.00 = 120.00
16 + 16 = 32
5.00
160.00
40.00
2 × 20
E
60.00 + 60.00 = 120.00
18 + 18 = 36
5.00
180.00
60.00
3 × 20


120

600.00
120.00
6 × 20

Table XVII shows the situation where marginal productivity is falling.

TABLE XVII
Type
of
Soil
Price of
Production
Shillings
Output
Bushels
Selling
Price
Shillings
Proceeds
Shillings
Rent
Shillings
Rent
Increase
B
60 + 60 = 120
12 + 9 = 21
5.71

120
0
0
C
60 + 60 = 120
14 + 10½ = 24½
5.71
140
20
20
D
60 + 60 = 120
16 + 12 = 28
5.71
160
40
2 × 20
E
60 + 60 = 120
18 + 13½ = 31½
5.71
180
60
3 × 20





120
6 × 20
Table XVIII shows the situation where marginal productivity is rising.

TABLE XVIII
Type
of
Soil
Price of
Production
Shillings
Output
Bushels
Selling
Price
Shillings
Proceeds
Shillings
Rent
Shillings
Rent
Increase
A
60 + 60 = 120
10 + 15 = 25
4.80
120
0
0
B
60 + 60 = 120
12 + 18 = 30
4.80
144
24
24
C
60 + 60 = 120
14 + 21 = 35
4.80
168
48
2 × 24
D
60 + 60 = 120
16 + 24 = 46
4.80
192
72
3 × 24
E
60 + 60 = 120
18 + 27 = 45
4.80
216
96
4 × 24





240
10 × 24
Where the price of production is rising, land type A may continue to be the regulator, or else an even worse soil type may begin to be cultivated, thereby becoming the regulator, and turning land type A into rent producing land.

The first set of examples assume that land type A remains the regulator.

Table XIX presents the case previously discussed, whereby the marginal productivity of the second investment remains constant or rises. This is only possible where the productivity of the first investment falls, for example, due to the wearing out of the top soil. Overall, therefore, the average productivity falls, and the price of production rises.

In Table XIX, the marginal productivity of the second investment is constant, whilst Table XXI presents the situation where it is rising.

TABLE XIX
Type
of
Soil
Price of
Production
Shillings
Output
Bushels
Selling
Price
Shillings
Proceeds
Shillings
Rent
Shillings
Rent
Increase
A
60 + 60 = 120
7.50 + 10 = 17.50
6.86
120
0
0
B
60 + 60 = 120
9 + 12 = 21
6.86
144
24
24
C
60 + 60 = 120
10.50 + 14 = 24.50
6.86
168
48
2 × 24
D
60 + 60 = 120
12 + 16 = 28
6.86
192
72
3 × 24
E
60 + 60 = 120
13.50 + 18 = 31.50
6.86
216
96
4 × 24





240
10 × 24


TABLE XXI
Type
of
Soil
Price of
Production
Shillings
Output
Bushels
Selling
Price
Shillings
Proceeds
Shillings
Rent
Shillings
Rent
Increase
A
60 + 60 = 120
5 + 12.50 = 17.50
6.86
120
0
0
B
60 + 60 = 120
6 + 15 = 21
6.86
144
24
24
C
60 + 60 = 120
7 + 17.50 = 24.50
6.86
168
48
2 × 24
D
60 + 60 = 120
8 + 20 = 28
6.86
192
72
3 × 24
E
60 + 60 = 120
9 + 22.50 = 31.50
6.86
216
96
4 × 24





240
10 × 24
Table XX presents the situation where the marginal productivity of the second investment is falling, so here there is no need to assume that the productivity of the first investment is falling.

TABLE XX
Type
of
Soil
Price of
Production
Shillings
Output
Bushels
Selling
Price
Shillings
Proceeds
Shillings
Rent
Shillings
Rent
Increase
A
60 + 60 = 120
10 + 5 = 15
8
120
0
0
B
60 + 60 = 120
12 + 6 = 18
8
144
24
24
C
60 + 60 = 120
14 + 7 = 21
8
168
48
2 × 24
D
60 + 60 = 120
16 + 8 = 24
8
192
72
3 × 24
E
60 + 60 = 120
18 + 9 = 27
8
216
96
4 × 24





240
10 × 24

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