We define a class of bias problems that arise when purchasers shift their expenditures among sellers charging different … purposes of price measurement. For business-to-business transactions, these shifts can cause sourcing substitution bias in the … sales or among retailers charging different per unit prices, this can cause a promotions bias problem in the Consumer Price …

trends at different points in their life cycle then matched sample methods may introduce bias if the life cycle movement in … pricing effects and then examines the bias it can introduce in measured inflation. A large US supermarket scanner data set for … change is important across a range of products and cities. To explore the bias introduced by these movements we use …

Index. The attractiveness stems from the ability to be able to control for chain drift bias. Consensus on two key issues has …

In order to provide information concerning the significant contributions to price index theory made by Moritz Wilhelm …

narrowly defined we nevertheless find evidence of a slight bias in the postcode based indexes. This can be attributed to …