How do Customers Alter Their Basket Composition When They Perceive the Retail Store to Be Crowded? An Empirical Study

Using data from a large-scale field study, we show that (perceptions of) crowding change(s) the composition of a consumer's shopping basket. Specifically, as shoppers experience more crowding, their shopping basket contains (a) relatively more affect-rich (“hedonic”) products, and (b) relatively more national brands. We offer a plausible dual-process explanation for this phenomenon: Crowding induced distraction limits cognitive capacity, increasing the relative impact of affective responses in purchase decisions. As we are the first to show that level of crowding relates to what shoppers buy (at both product and brand level), the implications of these effects for retailers are discussed

Midgut microbiota of the malaria mosquito vector Anopheles gambiae and Interactions with plasmodium falciparum Infection

The susceptibility of Anopheles mosquitoes to Plasmodium infections relies on complex interactions between the insect vector and the malaria parasite. A number of studies have shown that the mosquito innate immune responses play an important role in controlling the malaria infection and that the strength of parasite clearance is under genetic control, but little is known about the influence of environmental factors on the transmission success. We present here evidence that the composition of the vector gut microbiota is one of the major components that determine the outcome of mosquito infections. A. gambiae mosquitoes collected in natural breeding sites from Cameroon were experimentally challenged with a wild P. falciparum isolate, and their gut bacterial content was submitted for pyrosequencing analysis. The meta-taxogenomic approach revealed a broader richness of the midgut bacterial flora than previously described. Unexpectedly, the majority of bacterial species were found in only a small proportion of mosquitoes, and only 20 genera were shared by 80% of individuals. We show that observed differences in gut bacterial flora of adult mosquitoes is a result of breeding in distinct sites, suggesting that the native aquatic source where larvae were grown determines the composition of the midgut microbiota. Importantly, the abundance of Enterobacteriaceae in the mosquito midgut correlates significantly with the Plasmodium infection status. This striking relationship highlights the role of natural gut environment in parasite transmission. Deciphering microbe-pathogen interactions offers new perspectives to control disease transmission.Institut de Recherche pour le Developpement (IRD); French Agence Nationale pour la Recherche [ANR-11-BSV7-009-01]; European Community [242095, 223601]info:eu-repo/semantics/publishedVersio

The epidemic of innovation cloning: Retailers’ decision to introduce private label innovation copycats

status: publishe

Retailer private-label margins: The role of supplier and quality-tier differentiation

The authors show how new realities in the private-label (PL) landscape, including differential PL-sourcing relationships and differentiated, three-tiered PL portfolios, affect the gross margins that retailers realize on their PLs. In addition, they examine the moderating role of the identity of the PL supplier (dual brander vs. dedicated supplier). Retailer PL margins are lower for stockkeeping units from PL suppliers with whom the retailer shares a more intense relationship, as reflected in their relationship breadth and depth, but this negative effect can be countered through multisourcing. Building prolonged relationships with PL suppliers also results in lower retailer PL margins, but only for more national brand-oriented suppliers. Dedicated PL suppliers have little to gain by building long-term retailer relationships, but they are less vulnerable to the retailer's practice of multisourcing than dual branders. Although economy PLs may appeal to conventional supermarkets to keep (hard) discounters at bay, they result in lower margins (percentage-wise and absolute) than the standard PLs they cannibalize. Premium PLs, in turn, offer the retailer a higher margin, but only when produced by suppliers with a sufficient extent of national brand focus. iHowever, the higher promotional support often given to premium PLs tends to mitigate the actual margin advantage.status: publishe

Retailer Private-Label Margins: The Role of Supplier and Quality-Tier Differentiation

The authors show how new realities in the private-label (PL) landscape, including differential PL-sourcing relationships and differentiated, three-tiered PL portfolios, affect the gross margins that retailers realize on their PLs. In addition, they examine the moderating role of the identity of the PL supplier (dual brander vs. dedicated supplier). Retailer PL margins are lower for stockkeeping units from PL suppliers with whom the retailer shares a more intense relationship, as reflected in their relationship breadth and depth, but this negative effect can be countered through multisourcing. Building prolonged relationships with PL suppliers also results in lower retailer PL margins, but only for more national brand-oriented suppliers. Dedicated PL suppliers have little to gain by building long-term retailer relationships, but they are less vulnerable to the retailer's practice of multisourcing than dual branders. Although economy PLs may appeal to conventional supermarkets to keep (hard) discounters at bay, they result in lower margins (percentage-wise and absolute) than the standard PLs they cannibalize. Premium PLs, in turn, offer the retailer a higher margin, but only when produced by suppliers with a sufficient extent of national brand focus. However, the higher promotional support often given to premium PLs tends to mitigate the actual margin advantage

Taking private labels upmarket: Empirical generalizations on category drivers of premium private label introductions

Premium private labels (PLs) are considered one of the hottest trends in grocery retailing. Still, retailers do not feel the need to introduce premium PLs in every category. Generalizing across approximately 150 categories for six retailers from two countries that already carry premium PLs for several years, the authors find that retailers are more likely to introduce premium PLs in categories with a higher industry PL share, and with a more proliferated assortment in terms of standard PLs. However, retailers are also aware of the risk of creating PL fatigue at high levels of standard PL proliferation. Further, premium PLs are more likely to be introduced in categories with more frequent price promotions, a longer interpurchase time, a higher need for variety, and higher functional, but lower social, risk. In addition, retailers consider category growth and the prevailing practice of their country's premium-PL pioneer when deciding in which categories to also introduce a premium PL. Finally, when NBs spend a smaller amount on advertising and NB proliferation is moderate, premium PL introductions are more likely. Importantly, while some of the earlier empirical generalizations on factors conducive to a standard PL entry still hold for a premium PL entry, new variables need to be considered as well, while other insights need to be updated to better reflect the new reality of higher-quality/higher-price premium PL introductions. (C) 2014 New York University. Published by Elsevier Inc. All rights reserved

Retail service innovations and their impact on retailer shareholder value:evidence from an event study

To survive in the competitive retail landscape, retailers launch service innovations designed to grant additional value to consumers. This study investigates whether and in which circumstances retail service innovations create shareholder value, using stock returns to capture investors' point of view. An event study is used to analyze a broad, varied set of 350 service innovation announcements by publicly listed retailers. The study shows that the customer value benefit(s) aimed for by the retail service innovation (i.e., its level of convenience and engagement) has an impact on shareholder value. Moreover, this impact is contingent upon the stage of the consumer purchase process that the innovation targets, and upon the hedonic or utilitarian nature of the products offered by the retailer that initiates the innovation. The impact on retailer shareholder value is more positive for service innovations high on convenience that speed up and simplify the shopping process, when implemented at the purchase stage or by retailers offering utilitarian products. Service innovations high on engagement that focus more on non-transactional initiatives instead fare well in the post-purchase stage

Does private-label production by national-brand manufacturers create discounter goodwill?

Discounters have a private-label dominated assortment where national brands have only limited shelf access. These limited spots are in high demand with national-brand manufacturers. We examine whether private-label production by leading national-brand manufacturers for two important discounters (one hard and one soft) creates discounter goodwill. We estimate a selection model on a sample of 450 manufacturer-category combinations from two leading discounters (Aldi in Germany and Mercadona in Spain), and show that private-label production is indeed rewarded: national-brand manufacturers involved in such practice have a higher likelihood of procuring shelf presence for their brands. Moreover, while powerful manufacturers are intrinsically more likely to obtain shelf presence with soft discounters, manufacturers with lower power can compensate this by producing private labels. No such dependence on power exists for the hard discounter. However, not all national-brand manufacturers are equally likely to produce private labels for discounters. We find that national-brand manufacturers are less likely to do so when they experience more sales growth, when it is more difficult to produce high-quality products in the category, when they invest more advertising support into their brands, and when they introduce more innovations. Moreover, a higher price differential relative to the discounter’s private labels makes national-brand manufacturers less likely to engage in private-label production for hard discounters.status: publishe