7. Conclusions and limitations
This research has revisited the Natural Monopoly, a marketing law explaining why light users of a certain offering (e.g., a product or service category, or a specific type of consumer behaviour) will be drawn to the most popular brands in that product class, and has showed that the same law can also explain an underlying ‘tradeoff’ in brand image associations. Specifically, through the analysis of multiple data sets, this study showed that consumers with limited knowledge of brands within a certain category tend to retrieve the most popular brands, because they somewhat ‘monopolise’ CEPs. Hence, brands that are already highly mentally available need to resort to reaching out to those consumers for growth. This exemplifies how the tradition of empirical marketing law continues to offer venues to advance understanding of many aspects of consumption, including in relation to the cognitive mechanisms that characterise how consumers process brands in memory. Nonetheless, as with any research, this work is not exempt from limitations. For instance, it covers a range of potential confounding factors (e.g., variation over time, variation across contexts differing in the inherent level of brand loyalty etc.), but omits to consider others. Above all, future works could consider high involvement contexts and/or industrial markets, whereby the number of brands available to consumers is somewhat more limited. Future research could also test whether popular brands with higher relative levels of mental availability do indeed grow faster than similarly popular brands with slightly lower levels of mental availability. Finally, in line with the existence of different consideration sets (see Romaniuk and Sharp, 2016), further replications of this work should deploy an experimental design to examine in more detail different sub-sets of CEPs, looking for more benchmarks with managerial relevance.