Question: (a) Differentiate between the open input output model and the closed input output model. [2 Marks] (b) Briefly explain the assumptions of the input output
(a) Differentiate between the open input output model and the closed
input output model. [2 Marks] (b) Briefly explain the assumptions of
the input output model
[4
Marks]
(c) Consider a hypothetical economy consisting of three sectors A, B and C with inputs and outputs for
a particular period. The balanced transaction table has the form shown in the following table. The figures given are in billions of shillings.
INPUT TO
External Demand
Total Output
A
B
C
18
30
45
15
108
Output
from A
27
30
60
3
120
Output
4884 15
54
40
60
26
180
from B
9
20
Output
from C
Other
input
108
120
180
Total input
Required:-
[3
. Determine the technical coefficient matrix
Marks]
ii. If the external demand was to change from 15, 3 and 26 billion shillings to 10, 2 and 20 billion, calculate the total output for sector A, B and C.
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