Public goods are both unique and fascinating because it is virtually impossible to allocate a pure public good through market mechanisms. This chapter explores public goods and presents the criteria that can be used to identify public goods and to differentiate them from other types of goods. It looks at the purest public goods, which are conveniently called pure public goods. The chapter discusses why the characteristics of these purest of public goods make it extremely difficult to provide them through markets. The concept of public goods appears under several different terms in academic literature, including pure public goods, collective consumption goods, and social goods. There are at least two definitions for public goods. The first i...