In the 1920s, Germany after the First World War experienced an economic condition which can be best described as:

The determination of which goods are public goods depends on: a. public laws

b. normative considerations. c. whether it is produced directly by the government or produced by a private sector firm. d. whether it is possible to exclude additional users from consuming the good if they do not pay for it.

Externalities can be positive, as well as negative.

A. True B. False C. Uncertain