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Three Alternative Classes of Flexible Homothetic Demand Systems
出版Centre for Economic Policy Research, 2017
URLhttp://books.google.com.hk/books?id=MoT6swEACAAJ&hl=&source=gbs_api
註釋We characterize three classes of demand systems, all of which are defined non-parametrically: homothetic demand systems with a single aggregator (HSA), those with direct implicit additivity (HDIA), and those with indirect implicit additivity (HIIA). In HSA, all the cross-price effects are captured by one price aggregator, while in HDIA and in HIIA, they are captured by two price aggregators. Each of these three classes contains CES as a special case. Yet, they are pairwise disjoint with the sole exception of CES. Thus, these classes of homothetic demand systems offer us three alternative ways of departing from CES.