Ivancic, Lorraine; Fox, Kevin J. - School of Economics, UNSW Business School - 2010
The empirical literature on price indices consistently finds that aggregation methods have a considerable impact … the appropriateness of aggregation. A hedonic regression framework is used to test for item homogeneity across four … supermarket chains and across stores within each of these supermarket chains. We find empirical support for the aggregation of …
