2. Demand Elasticity - dosen.perbanas.id · a. Tentukan koefisien elastisitas harga silang dari permintaan, apabila diketahui harga produk B adalah US$ 10/unit. b. Apakah hubungan

2. Demand Elasticity

CHAPTER 2 OUTLINE

1. Definisi elastisitas permintaan

2. Faktor penentu

3. Perubahan permintaan karena harga dan

pendapatan

4. Barang normal, inferior, substitusi, dan

komplemen

5. Aplikasi & Contoh

ELASTICITIES OF SUPPLY AND DEMAND

Price Elasticity of Demand

● elasticity Percentage change in one variable resulting from

a 1-percent increase in another.

● price elasticity of demand Percentage change in quantity demanded of a

good resulting from a 1-percent increase in its price.

● Persentase perubahan jumlah barang yang diminta karena

kenaikan harga 1%

Arc Elasticity

E arc =

Point Elasticity

Q = 600 - 100P

P Q Earc Epoint TR = PQ

0 600

1 500

2 400

3 300

4 200

5 100

6 0

Cross ElasticityCross price elasticity of demand = Elastisitas harga-silang dari permintaan

Income elasticity = Elastisitas pendapatan

Point elasticity

Arc elasticity

1

2

3

4

M = pendapatan

Determinants of Price Elasticity

• The extent to which a good is considered

to be a necessity

Sejauh mana suatu barang dianggap penting

• The availability of substitute goods

Keberadaan barang substitusi

• The proportion of income spent on the

product

Persentase pendapatan yang dibelanjakan

untuk membeli produk