The effect of proportional pricing on alcohol purchasing in two online experiments.
Saved in:
| Title: | The effect of proportional pricing on alcohol purchasing in two online experiments. |
|---|---|
| Authors: | Kersbergen, Inge, Copeland, Amber, Pryce, Robert, Meier, Petra, Field, Matt |
| Source: | Addiction. May2025, Vol. 120 Issue 5, p860-870. 11p. |
| Subjects: | Research funding, Consumer attitudes, Cost analysis, Human beings, Descriptive statistics, Internet, Experimental design, Alcohols (Chemical class), Alcohol drinking, Confidence intervals, Food portions |
| Geographic Terms: | United Kingdom |
| Abstract: | Background and Aims: Buying smaller‐sized alcohol products can reduce alcohol consumption, but larger products have better value for money, which presents a barrier to switching. We tested whether proportional pricing prompts drinkers to buy smaller alcohol products and reduce alcohol purchasing. Design, Setting and Participants: This study was an online experiment set in the United Kingdom, using hypothetical shopping tasks in which participants purchased different‐sized products presented under proportional pricing (i.e. constant price per litre throughout all sizes of the same product) or standard pricing conditions. Study 1 (comprising n = 210 participants) was a mixed experiment with pricing condition (proportional pricing, standard pricing; within‐subjects) and drink type (lager, red wine, vodka; between‐subjects) as manipulated factors. Study 2 (comprising n = 90 participants) was a within‐subjects experiment with pricing condition (proportional pricing, standard pricing) and multi‐pack type (size difference‐only, quantity‐difference only, size and quantity difference) as manipulated factors. Participants were UK adult alcohol consumers. Measurements: We measured outcome variables, including alcohol purchasing (UK units) and proportion of alcohol purchased from smaller products. Findings Proportional pricing consistently increased the proportion of alcohol purchased from smaller products [study 1: B = 10.82, 95% confidence interval (CI) = 8.72–12.92; study 2: B = 11.64, 95% CI = 3.50–19.77], indicating a switch to smaller products. However, this did not consistently reduce the total amount of alcohol purchased among drink and product types: proportional pricing reduced the total units purchased from lager multi‐packs containing more rather than fewer products (B = −2.56, 95% CI = −4.82 to −0.30), but not from other types of lager multi‐packs or single lager products. Proportional pricing also reduced vodka purchasing (B = −3.30, 95% CI = −5.21 to −1.40), but the effect of proportional pricing on wine purchasing was moderated by hazardous drinking (B = −0.11, 95% CI = −0.17 to –0.05). Conclusions: Alcohol sales policies that require proportional pricing may reduce alcohol purchasing. [ABSTRACT FROM AUTHOR] |
| Copyright of Addiction is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
|
Full text is not displayed to guests.
Login for full access.
|
|
Be the first to leave a comment!
