KULIAH III KEGAGALAN PASAR MARKET FAILURES Ketimpangan Pasar

KULIAH III KEGAGALAN PASAR (MARKET FAILURES) Ø Ketimpangan Pasar, 1. Monopoli (Penjual tunggal) / Monopoli Alamiah 2. Monopsoni (Pembeli Tunggal) 3. Oligopoli (Penjual sedikit) 4. Oligopsoni (Pembeli sedikit) Ø Barang Publik (Public Goods) 1. Bersaing (Rivalrous) atau tidak 2. Dapat dikecualikan (Excludable) atau tidak 3. Jenuh (congested) atau tidak Tugas Pemerintah Untuk Memenuhi atau Mengatur Ketersediaan Barang Publik

Ø Pengabaian Eksternalitas POSITIF NEGATIF Produsen ke Produsen Air hangat dari PLTN dimanfaatkan oleh peternak ikan Polusi bahan kimia merusak sungai tempat memancing Produsen ke Konsumen Hutan industri memberikan pemandangan untuk pencinta alam Polusi udara dari pabrik merusak paru-paru penduduk Konsumen ke Konsumen Imunisasi membantu dalam memproteksi orang lain Asap rokok mengurangi kenikmatan makan orang lain Konsumen ke Produsen Surat aduan dari konsumen memberikan informasi mengenai kualitas produk dan pelayanan Pemburu mengganggu ternak Ø Asimetri Informasi (ketidaktepatan dan ketidakadilan informasi

I. KEGAGALAN PASAR (MARKET FAILURES) 1. PUBLIC GOODS NONRIVALROUS Rivalrous, excludable Nonrivalrous, excludable Uncongested : Private good Uncongested : Marketable public good NW I market efficient NW 2 Congested : Private good with cosumption externality Overconsumption because consumers respond to price rather than MSC. Rivalrous, Nonexcludable Uncongested : “free” good Positive price can be charged (exclusion is possible) but will be inefficient as MSC = 0. If efficient price (0) is enforced, there will be no private supply Congested : Marketable NE 2 public good when MSC is variable, price should be zero when MSC = 0. Positive when MSC > 0. Nonrivalrous, Nonexcludable Uncongested : Pure Public good SW 1 Supply exceeds demand at zero price: no inefficiency until demand grows beyond supply at zero price NE 1 SW 2 Congested : Common property resources Consumers respond to MPC rather than MSC-the result is inefficiency, including overconsumption, underinvestment, and rent dissipation No private supply is likely because exclusion is not possible. Inefficiency stems from lack of supply even though there are potential social benefits. May be exceptions to lack of private supply: privileged and intermediate groups. SE 1 SE 2 Congested : Including Ambient public good No individual is able to exclude others so good is over consumed. Often possible to reformulate as an externality problem.

KEGAGALAN PEMERINTAHAN (GOVERNMENT FAILURES) Kegagalan dalam menjalankan peran pemerintah dalam bidang Politik, Ekonomi, Sosial dan Budaya Ø Demokrasi (Keadilan Politik) Ø Birokrat (Aparat Pemerintahan) Ø Birokrasi (Pelaksanaan Pemerintahan) Ø Desentralisasi