D4
D4
E3, E31, D84, D4, L11, Q41, J30
D12, D4, D6, D61, D62, D9, H1, H2, H23, L5, N5, Q01, Q25, Q5, Q51
D4, G30, J24, L25, M41, O16
H4 - Publicly Provided Goods, L3 - Nonprofit Organizations and Public Enterprise, D4 - Market Structure, Pricing, and Design
D4, G21, J24, L25, L26, M41, O16
D4, D81, L00, M31
D4, L1, I3