# quality change bias

- Canonical URL: https://www.gerhardmerk.de/quality-change-bias
- Post ID: 593502
- Modified: 2023-07-25T21:13:06+00:00
- Language: en

## Definition

In measuring inflation, the problem is that in a market-driven economy the supply of goods is constantly changing (increasing product differentiation: a development toward additional and supplementary as well as improved goods), and that such changes must be taken into account. A distinction is made between - improvements to an existing product, e.g. a refrigerator with lower electricity consumption comes onto the market and - a good is partially or completely replaced by another with the same consumer benefit, e.g. a microwave [device]: microwave [device], "nuker") instead of electric or gas stove, USB stick instead of CD. - See procurement shifts, organic markup, inflation measurement, cost-of-living price index, product novelties, quality control, ramp, stimulus threshold. - Cf. ECB Monthly Bulletin, April 2014, p. 46 (consumer price measurement problems due to quality changes and new products). Attention: The financial encyclopedia is protected by copyright and may only be used for private purposes without express consent! University Professor Dr. Gerhard Merk, Dipl.rer.pol., Dipl.rer.oec. Professor Dr. Eckehard Krah, Dipl.rer.pol. E-mail address: info@ekrah.com https://de.wikipedia.org/wiki/Gerhard_Ernst_Merk https://www.jung-stilling-gesellschaft.de/merk/ https://www.gerhardmerk.de/

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