Słowa kluczowe: budget law, tax law, budget legislation, tax legislation, sub-federal budgets, budget revenues, tax expenditures, currency option, forward contract, tax-deductible expense, corporate income tax, derivative, tax authority, tax decision, compensation, public expenses, Public-private partnership, EU funds, hybrid PPP, local self-government, region, EU regional policy, The Treaties of Rome, The Lisbon Treaty, The Treaty of Nice, structural funds, joint-stock company, cooperative, community, unfair terms in consumer contracts, unfair provisions, banks, court of competition and consumer protection