The Price Index and its Extension

S.N. Afriat is back and writing on the subject of the Price Index. This book should be of great interest to economists and statisticians everywhere.
The book is not an unrestricted survey engaging a vast and repetative literature, but a systematic treatise within clear boundaries, largely a document of Afriat's own work. The original motive of the work is to elaborate a concept of what really is a price index, which, despite some kind of price-level notion having a presence throughout economics, in theory and practice, had been missing.