Guttormsen, Atle; Tveterås, Sigbjørn; Asche, Frank - In: Economics Bulletin 3 (2001) 13, pp. 1-6
Aggregation over goods is always an issue in empirical analysis. However, while the problem of aggregation over different goods often is analysed, little attention has been given to the properties of generic goods such as e.g. coffee, wheat and salmon. Often these generic commodities contain a...