TUGAS EKONOMI MAKRO PENGANTAR
ANALISIS PENDAPATAN NASIONAL PEREKONOMIAN TERTUTUP SEDERHANA
1)
Negara I
Diketahui
: Y1 = 1000 C1 = 950
Y2 = 1200 C2 = 1100
Ditanya : a ? MPS ? MPC ? YBEP ?
Fungsi Konsumsi dan Saving ?
JAWAB :
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MPC
= 
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ð C
= ( 0,95 – 0,75 ) 1000 + 0,75 Y
ð C
= 200 + 0,75 Y
ð S
= -200 + 0,25 Y
ð a
= 200
ð MPS
= 0,25
ð YBEP
, S = 0
Y = C
Y = 200 + 0,75 Y
0,25 Y = 200
YBEP = 800
2)
Negara II
Diketahui : Y1 = 200 S1 = 20
Y2 =
400 S2 =
60
Ditanya : a ? MPS ? MPC ? YBEP ?
Fungsi Konsumsi dan Saving ?
JAWAB :
APS1 
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MPS =
= 
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ð S
= ( 0,1 – 0,2 ) 200 + 0,2 Y
ð S
= -20 + 0,2 Y
ð C
= 20 + 0,8 Y
ð a
= 20
ð MPC
= 0,8
ð YBEP
, S = 0
Y = C
Y = 20 + 0,8 Y
0,2 Y = 20
Y = 100
3)
Negara III
Diketahui : MPC = 0,8
YBEP = 500
Ditanya : a ? MPS ? Fungsi Konsumsi
dan Saving ?
JAWAB :
ð MPS
= 1 – 0,8 = 0,2
ð Y
= C
Y = a + 0,8 Y
0,2 Y = a
0,2 ( 500 ) = a
100 = a
ð C
= 100 + 0,8 Y
ð S
= -100 + 0,2 Y
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