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  • 1. ELASTISITAS BY: KARLINA.SE
  • 2. ELASTISITASElastisitas ada 2: 1. Elastisitas Permintaan_hukum permintaan (PRICE ELASTICITY OF DEMAND) 2. Elastisitas Penawaran _hukum penawaran (PRICE ELASTICITY OF SUPPLY)
  • 3. ElastisitasElastisitas:Koefesien Elastisitas yang menggambarkanbagaimana pengaruh perubahan harga terhadapperubahan jumlah barang baik jumlah barangyang diminta maupun jumlah barang yangditawarkan.
  • 4. ElastisitasKoefesien Elastisitas dapat di cari dengan: Rumus Point Elasticity: Q Q1 – Q2 P1 – P2 Ed = = : P Q2 P2 Rumus Arc Elasticity: Q Q1 – Q2P1 – P2 Ed = = : P (Q1 + Q2)/2 (P1 + P2)/2
  • 5. Elasticity of demandElasticity of Demand: Price Elasticity of Demand Cross Elasticity of Demand Income Elasticity of Demand
  • 6. Price Elasticity of Demand Uniter Ed = 1Untuk melihat:Elastic Perubahan Harga = perubahan Ed > 1 Jumlah Barang yang dimintaPerubahan Harga Sangat Inelastic Perfect Ed = 0Besar sekali pengaruhnya terhadap Berapapun harga di pasar,jumlah barang yang diminta. konsumen hanya mampu membeli Pada jumlah tertentu saja.Inelastic Ed < 1 Elastic Perfect Ed =~Perubahan Harga Sangat Kecil Pada harga tertentu konsumenSekali terhadap jumlah barang mampu membeli berapapun yang jumlah
  • 7. Price Elasticity of DemandRumus Arc Elasticity: Qd Qd1 – Qd2 P1 – P2Ed = = : P (Qd1 + Qd2)/2 (P1 + P2)/2
  • 8. Cross elasticity of demandUntuk melihat : Hubungan barang X dan YKomplementer Ec = - QdxSubstitusi Ec = + Ecxy =Netral Ec = 0 Py Hubungan barang Y dan X Qdy Ecyx = Px
  • 9. Income elasticity of demandUntuk melihat:Inferior Ei = - QdNormal Ei = + <1 Ei =Mewah Ei = + > 1 I
  • 10. Elasticity of supply Qs Qs1 – Qs2 P1 – P2Es = = : P (Qs1+ Qs2)/2 (P1 + P2)/2
  • 11. Elasticity of supplyElastic Es > 1 Inelastic Es < 1Perubahan harga sangat Perubahan harga sangatbesar sekali pengaruhnya kecil sekali pengaruhnyaterhadap perubahan terhadap perubahanjumlah barang yg jumlah barang yangditawarkan ditawarkan s s
  • 12. Elasticity of supplyUniter Es = 1 Inelastic Perfect Es = 0Perubahan harga sama Berapapun harga di pasardengan perubahan jumlah penjual hanya mampubarang yang ditawarkan menjual pada jumlah s Tertentu saja s
  • 13. Elasticity of supplyElastic Perfect Es = ~ sPada harga tertentu penjual mampu menjualberapapun jumlah barangnya.