Thesis (Ph.D.)--University of the Witwatersrand, Faculty of Commerce, Law and Management, Graduate School of Business Administration, 201 / This dissertation examined the role of brands in consumer decision making in online environments versus offline environments. The effects of the information type and quality available in a given purchase environment influences consumer choice. The premise on which this study was based is the accessibility-diagnociticity model which states that the weight given to any piece of information which would be used for consumer decision making depends on the accessibility of that piece of information, the accessibility of alternative inputs and diagnositicity or perceived relevance of the inputs (Feldman & Lynch 1988). Information available to consumers plays a significant role in their decision making and there has been limited studies investigating this in the online versus offline shopping environments. The challenge of online shopping for some product categories is that there is limited capacity to provide touch, smell and taste information. The dissertation reports three experiments which were conducted to test the hypotheses. Participants were randomly assigned to different shopping environments with varying levels of information. The findings extend the theory of the diagnosticity of information (Alba, Hutchinson, & Lynch, 1991; Feldman & Lynch 1988; Herr, Karde, & Kim, 1991; Lynch, Marmorstein & Weigold, 1988; Lynch 2006) indicating that, when consumers observe that they do not have enough information to make a purchase decision, they do not make a decision unless the brand is familiar. vii The findings from the research offer fresh insights that familiar brands have greater advantage in online shopping than unfamiliar brands, particularly for experiential products. The results suggest that in purchase situations where there is limited sensory information, consumers rely on brand familiarity to make decisions or they do not make a decision if the brands are unfamiliar. The results of the dissertation showed that when there is limited information in consumer decision making processes, consumers use their knowledge about brands to make or not make a decision. The results contradict the long tail theory (Anderson, 2006) which proposes that the businesses would make more profits from niche offerings of unfamiliar brands. The results of the study were not conclusive on the effects of shopping environments on price sensitivity for familiar and unfamiliar brands. The results suggested the predicted pattern, though the interaction was not statistically significant and there is need for future research on online price elasticity. Future research should also explore the effects of these new sources of information like blogs, consumer and expert reviews, Facebook, etc. on consumer decision making in the offline and online environments

The purpose of this study is to investigate the role of loyalty in consumers’ selection of brand extensions in the presence of familiar competitors. The findings show that fit may not have a linear relationship with the choice of an extension when loyalty and brand familiarity are considered. Loyal consumers’ likelihood to choose high-fit and moderate-fit extensions is not much lower than their likelihood to choose products from familiar competitors. We also find an inverted-U-shaped relationship between choice behavior and degree of perceived fit for loyal and moderately loyal consumers. Moreover, brand concepts can make a brand more elastic and extendable, increasing loyal and moderately loyal consumers’ likelihood to choose moderate- and even low-fit extensions. However, disloyal consumers are highly unlikely to choose extensions over products from familiar competitors regardless of fit and types of similarity. Finally, the effect of similarity on consumers’ choice of extensions is fully mediated by loyalty and perceived risks.

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The gap between ethical purchase intentions and ethical purchase behaviour is well-documented. Although this gap can be bridged by increasing the level of awareness among consumers with regards to ethical business practices, it was found that consumers between the ages of 19 to 56 years were already aware of ethical organisations and business practices in the South African sports supplement industry. They are however unaware of companies that operate unethically. Several factors such as brand familiarity, price and convenience were found to compete with ethical business behaviour during the purchase decision-making process. It is thus recommended that organisations that incorporate ethical business behaviour at a strategic level should provide ethical products that are competitively priced, convenient to use and from a brand that is familiar / Graduate School of Business Leadership / MBA

The gap between ethical purchase intentions and ethical purchase behaviour is well-documented. Although this gap can be bridged by increasing the level of awareness among consumers with regards to ethical business practices, it was found that consumers between the ages of 19 to 56 years were already aware of ethical organisations and business practices in the South African sports supplement industry. They are however unaware of companies that operate unethically. Several factors such as brand familiarity, price and convenience were found to compete with ethical business behaviour during the purchase decision-making process. It is thus recommended that organisations that incorporate ethical business behaviour at a strategic level should provide ethical products that are competitively priced, convenient to use and from a brand that is familiar / Graduate School of Business Leadership / MBA

Cette thèse de doctorat étudie la réponse des consommateurs à la longévité brandée de la marque. En particulier, on explore l'effet de la longévité brandée de la marque sur la fluidité du traitement et la familiarité de la marque dans diverses conditions. Comment réagissent les consommateurs lorsqu'une marque indique sa date de création sur un emballage ou une publicité ? Comment leurs réactions diffèrent­elles en fonction de leur niveau d’implication avec le produit ou de la congruence entre la catégorie de produit et la longévité de la marque? Cette thèse identifie les processus psychologiques qui se produisent lors de l'exposition à la longévité brandée de la marque afin d'expliquer l'effet de la longévité de la marque sur le consommateur. La longévité brandée de la marque est censée susciter une réaction positive chez le consommateur, telle que la confiance dans la marque et la crédibilité de la marque. Cette thèse examine les mécanismes psychologiques qui expliquent ces effets. La fluidité du traitement est considérée comme le cadre théorique pouvant expliquer ces effets. Un modèle démontre que celle­ci est le médiateur entre l’effet de la longévité brandée de la marque et la familiarité de la marque. Ce modèle prend en compte des effets modérateurs tels que l’implication envers le produit et la congruence. / This doctoral dissertation examines consumer response to branded longevity. In particular, it explores the effect of branded longevity on processing fluency and brand familiarity under various conditions. How do consumers react when a brand indicates its founding date on a package or advertisement? How do their reactions differ according to their level of involvement with the product or the congruence between the product category and branded longevity? This thesis identifies the psychological processes that occur during exposure to branded longevity in order to explain the effect of the longevity of the brand on the consumer. Branded longevity is argued to positively influence marketing variables, such as brand confidence and brand credibility. This thesis examines the psychological mechanisms that explain these effects. Processing fluency is considered as the theoretical framework that can explain these effects. Our model shows that processing fluency mediates the effect of branded longevity on brand familiarity. This model takes into account moderating effects such as product involvement and congruence.

Cette thèse étudie les représentations du passé par les marques et leur effet sur les consommateurs dans le cadre théorique de la distance temporelle. Que se passe-t-il lorsqu’une marque indique sa date de fondation sur un packaging, présente son histoire en page d’accueil du site internet ou fait de son fondateur le personnage central de ses créations publicitaires ? L’objectif de cette thèse est de qualifier ce phénomène, de mieux le comprendre et d’en mesurer les effets cognitifs et affectifs sur les consommateurs. La première partie de la thèse situe ce phénomène par rapport aux recherches sur le rôle du temps en marketing, et plus particulièrement à celles liées au passé comme le marketing rétrospectif, la nostalgie, l’authenticité et la consommation du passé. La seconde partie présente deux études qualitatives et cinq études quantitatives (chapitres 4 à 6) dont les résultats permettent de 1) proposer une nouvelle échelle pour mesurer la perception du patrimoine de marque, 2) démontrer que la mobilisation du patrimoine de marque augmente la distance temporelle entre le consommateur et la marque, 3) montrer que le patrimoine de marque est associé à des bénéfices cognitifs même si la causalité n’est pas vérifiée, et 4) prouver que le patrimoine de marque a un effet sur l’attachement à la marque, uniquement si les consommateurs en sont familiers. Ces résultats contribuent à la recherche sur la gestion de la temporalité de la marque, aux travaux sur le concept de patrimoine de marque, sur les effets cognitifs et affectifs des représentations du passé par les marques, et sur les effets de la distance temporelle dans le passé / This doctoral thesis explores brands’ representations of the past and their effect on consumers in the theoretical framework of temporal distance. What happens when a brand indicates its founding date on a packaging ? Or puts forward its history on its website ? Or uses its founder as the central character in an advertising campaign ? This thesis aims to qualify this phenomenon, to better understand it, and to measure its cognitive and affective effects on consumers. The first part of the dissertation situates this phenomenon with regards to existing research on the role of time in marketing, and most particularly, to the research relating to the past such as retrospective branding, nostalgia, authenticity and the commodification of the past. The second part details two qualitative and five quantitative empirical studies whose results : 1) suggested a new scale to measure the perception of brand heritage, 2) demonstrated that brand heritage increases temporal distance between the brand and its consumers, 3) showed that brand heritage is associated with cognitive benefits although causality is not assessed, and 4) proved the effect of brand heritage on brand attachment for familiar brands. Those results contribute to the research on temporality in brand management, on the concept of brand heritage and its measurement, on the cognitive and affective consequences of brands’ representations of the past, and on the temporal distance on the past