Which of the following displays the characteristics of a pure public good?
An encryption-secured digital database of medical research funded by private subscriptions.
A community garden located in a gated residential development.
A national maritime search and rescue broadcast system transmitting open-frequency weather alerts.
A heavily congested urban freeway with unrestricted public access.
23 exam-style questions on OCR A Level Economics Public goods. Each one has a worked solution and a mark scheme showing where the marks go.