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Budget-/Bilanzgerade

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by

Bastian S.

on 11 January 2016

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Transcript of Budget-/Bilanzgerade

Budget-/Bilanzgerade
0
A

B
8
7
6
5
4
3
2
1
1 2 3 4 5 6 7 8 9 10
p1 = 8€
p2 = 4€
e = 40€
0
A

B
8
7
6
5
4
3
2
1
1 2 3 4 5 6 7 8 9 10
p1 = 8€
p2 = 4€
e = 40€
e
p1
e/p2 = 40/4 = 10
40
8
p1 * x1 + p2 * x2 = e

- Menge * Preis 1 + - Menge * Preis = Einkommen
8€ * x1 + 4€ * x2 = 40€
"Homo oeconimicus will alles ausgeben"
Wichtig: Budgetgerade beschreibt keinen Nutzen!
Indifferenzkurven zeigen den Nutzen
Hier: Lediglich die Menge die maximal gekauft werden kann
Frage: Wenn ich 3 Eiswafffeln habe, wie viel Pizzen kann ich dann kaufen?
8€ *x1 + 4€ * x2 = 40€
8€ *x1 + 12€ = 40€ | -12€
8€ * x1 = 28€ | :8€
x1 = 3,5

3,5 * 8€ = 28€ 3*4€ = 12
Also 3,5 Pizzen und 3 Eiswaffeln
Allokationsmechanismus:

x1 =
p1 * x1 + p2 * x2 = e |- p2 *x2
p1*x1 = e - (p2 * x2) | :p1


e p2
p1 p1
-
* x2
x1 =
40€ 4€
8€ 8€
* 3
-
Allokationsmechanismus:

x1 =
p1 * x1 + p2 * x2 = e |- p2 *x2
p1*x1 = e - (p2 * x2) | :p1


e p2
p1 p1
-
* x2
x1 =
40€ 4€
8€ 8€
* 3
-
0
A

B
8
7
6
5
4
3
2
1
1 2 3 4 5 6 7 8 9 10
p1 = 8€
p2 = 4€
e = 40€
e
p1
e/p2 = 40/4 = 10
40
8
- p2/p1
-4€/8€ = 0,5
Güteraustauschverhältnis
= Steigung der Bilanzgerade
0
A

B
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
10
9
8
7
6
5
4
3
2
1
p1 = 8€
p2 = 4€
e = 60€
e
p1
e/p2 = 60/4 = 15
60
8
- p2/p1
-4€/8€ = 0,5
Merke: Eine Einkommenserhöhung sorgt in der Bilanzgerade für eine parallele Verschiebung der Gerade. Einfluss auf das GAV hat die Einkommensänderung keine.
0
A

B
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
10
9
8
7
6
5
4
3
2
1
p1 = 5€
p2 = 4€
e = 40€
e
p1
e/p2 = 40/4 = 10
40
5
- p2/p1
-4€/5€ = 0,8
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