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The present paper shows that product-specific regional price dispersion usually causes the Country-Product-Dummy (CPD) method to be biased. In cases where it is not, this index number method is still inefficient and inference is invalid. In view of this, a nonlinear generalization of the CPD...
Persistent link: https://www.econbiz.de/10013460131
Lacking data on price levels across locations (countries, national regions, etc.) for cross-space comparisons, researchers resort to local consumer price indexes (CPIs) over time to evaluate these levels. This approach unfortunately fails to specify, even generally, the exactness of such...
Persistent link: https://www.econbiz.de/10012729590
The paper reviews the sources of "Upward bias" and "Downward bias" in the US Consumer Price Index (CPI) and discusses … in terms of differing statistical methods. -- Consumer Price Index ; Economic Growth ; Statistical bias ; Statistical …
Persistent link: https://www.econbiz.de/10002521570
Index. The attractiveness stems from the ability to be able to control for chain drift bias. Consensus on two key issues has …
Persistent link: https://www.econbiz.de/10014110279
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 …
Persistent link: https://www.econbiz.de/10012987900
Current HICP measurement practices produce an upward bias of about one-ninth of a percentage point in German inflation …
Persistent link: https://www.econbiz.de/10012489562
This paper presents an indirect approach to investigate the possible existence of measurement error bias in the … bias in the UK, nor for Italy prior to the introduction of the Euro. Since January 2002, however, the inflation rate in …
Persistent link: https://www.econbiz.de/10014069180
bias. We also identify a "weighting" bias in the CPI that has not been previously discussed in the literature. In total, we … interval that ranges from 0.1 to 1.2 percentage points. Roughly half of this bias is accounted for by the CPI's inability to … fully capture the welfare improvement from quality change and the introduction of new items. Our bias estimate is smaller …
Persistent link: https://www.econbiz.de/10014121750
reconsidering the supposed bias of the Consumer Price Index, its consequences, and consequences related to economic decision making …
Persistent link: https://www.econbiz.de/10011560493
argue that the quality bias in price indexes is just as likely to be upward as it is to be downward. I show how both the … sign and the magnitude of the quality bias in the most commonly applied price index methods are determined by the cross … elasticity of substitution) preferences. I illustrate the bias in the commonly applied price index methods by comparing their …
Persistent link: https://www.econbiz.de/10012733193