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Assessing consumer post-response to a food safety scare in South Africa using behavioural game theory

Thesis (MScAgric)--Stellenbosch University, 2021.

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Main Author: Hadebe, Ziyanda Precious
Other Authors: Punt, Cecilia
Format: Thesis
Language:en_ZA
Published: Stellenbosch : Stellenbosch University 2021
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access_status_str Open Access
author Hadebe, Ziyanda Precious
author2 Punt, Cecilia
author_browse Hadebe, Ziyanda Precious
Punt, Cecilia
author_facet Punt, Cecilia
Hadebe, Ziyanda Precious
author_sort Hadebe, Ziyanda Precious
collection Thesis
dc_rights_str_mv Stellenbosch University
description Thesis (MScAgric)--Stellenbosch University, 2021.
format Thesis
id oai:scholar.sun.ac.za:10019.1/124003
institution Stellenbosch University (South Africa)
language en_ZA
last_indexed 2026-06-10T12:42:04.592Z
license_str Other — see source repository
provenance_str_mv Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository
publishDate 2021
publishDateRange 2021
publishDateSort 2021
publisher Stellenbosch : Stellenbosch University
publisherStr Stellenbosch : Stellenbosch University
record_format dspace
source_str SUNScholar — Stellenbosch University Repository
spelling oai:scholar.sun.ac.za:10019.1/124003 Assessing consumer post-response to a food safety scare in South Africa using behavioural game theory Hadebe, Ziyanda Precious Punt, Cecilia Greyling, Jan C. Stellenbosch University. Faculty of Economic and Management Sciences. Dept. of Agricultural Economics. Food -- Consumption -- Social aspects -- South Africa Food -- Consumption -- Economic aspects -- South Africa Food contamination Consumer behavior -- South Africa Food safety -- Psychological aspects Game theory Behavioural game theory UCTD Thesis (MScAgric)--Stellenbosch University, 2021. ENGLISH SUMMARY : The consumer response to the Listeria outbreak in South Africa (SA) was noticeable and reasonable. However, the post food scare effects are still predicted and it is not certain to what degree the outbreak affected rational decisions of consumers when buying processed meat products, especially the implicated ones. Thus, it is vital to capture and quantify the level of trust that South African consumers have toward processed meat products after the Listeria outbreak. Since the market is consumer-orientated, this study analysed the consumer behaviour towards the implicated product after the Listeria outbreak through behavioural economics and game theory. The study used 111 subjects with 50 control and 61 treatment participants from the Cape Wineland District in Western Cape Province. The participants consisted of both student and non-student participants, which enabled broad socio-economic characteristics to investigate the factors that influenced consumer behaviour after the outbreak. The experimental game theory chosen for the study is the Vickrey fourth-price auction used to collect willingness to pay (WTP) data. The Vickrey fourth-price auction consisted of three rounds where each participant was requested to bid for 500g viennas online through an oTree online platform after receiving negative and/or positive information about the Listeria outbreak. The winning bidders received food vouchers equivalent to the 500g viennas retail price after the experiment. After the auction, a survey and evaluation were conducted to collect data based on demographic characteristics, shopping habits, knowledge or attitude about food safety, salience, social pressure resulting from the outbreak and the level of trust for the implicated products. All the data and information that was collected from the auction, survey and evaluation were further analysed using a Tobit regression model, an integrative model of behavioural prediction (IMBP) and partial least squares structural equation modelling (PLS-SEM) to assess the consumer behaviour after the outbreak. Most participants indicated that they stopped consuming or reduced their consumption of the products implicated during the outbreak. Moreover, the negative information had a more significant impact on consumer behaviour than positive information about the outbreak. Negative information caused a major decrease in the consumption of ready-to-eat (RTE) meat products during and after the outbreak. Lastly, real intention of buying the implicated products, trust and shopping habit had the greatest influence on WTP compared to other variables. Real intention mainly increased the WTP of participants whilst trust either decreased or increased the WTP after the recall. Since the purchasing behaviour of consumers changed after the outbreak, shopping habits had the most negative effect on WTP. Thus, one may conclude that most consumers change their choice of purchase and frequency of buying RTE meat products, especially for implicated products after a food scare. AFRIKAANSE OPSOMMING : Geen opsomming beskikbaar. Masters 2021-12-07T20:34:00Z 2021-12-22T14:34:14Z 2021-12-07T20:34:00Z 2021-12-22T14:34:14Z 2021-12 Thesis http://hdl.handle.net/10019.1/124003 en_ZA Stellenbosch University xii, 118 pages ; illustrations, includes annexures application/pdf Stellenbosch : Stellenbosch University
spellingShingle Food -- Consumption -- Social aspects -- South Africa
Food -- Consumption -- Economic aspects -- South Africa
Food contamination
Consumer behavior -- South Africa
Food safety -- Psychological aspects
Game theory
Behavioural game theory
UCTD
Hadebe, Ziyanda Precious
Assessing consumer post-response to a food safety scare in South Africa using behavioural game theory
title Assessing consumer post-response to a food safety scare in South Africa using behavioural game theory
title_full Assessing consumer post-response to a food safety scare in South Africa using behavioural game theory
title_fullStr Assessing consumer post-response to a food safety scare in South Africa using behavioural game theory
title_full_unstemmed Assessing consumer post-response to a food safety scare in South Africa using behavioural game theory
title_short Assessing consumer post-response to a food safety scare in South Africa using behavioural game theory
title_sort assessing consumer post response to a food safety scare in south africa using behavioural game theory
topic Food -- Consumption -- Social aspects -- South Africa
Food -- Consumption -- Economic aspects -- South Africa
Food contamination
Consumer behavior -- South Africa
Food safety -- Psychological aspects
Game theory
Behavioural game theory
UCTD
url http://hdl.handle.net/10019.1/124003
work_keys_str_mv AT hadebeziyandaprecious assessingconsumerpostresponsetoafoodsafetyscareinsouthafricausingbehaviouralgametheory