Costly search and consideration sets in storable goods markets

Costly search can result in consumers restricting their attention to a subset of products–the consideration set–before making a final purchase decision. The search process is usually not observed, which creates econometric challenges. I show that inventory and the availability of different package sizes create new sources of variation to identify search costs in storable goods markets. To evaluate the importance of costly search in these markets, I estimate a dynamic choice model with search frictions using data on purchases of laundry detergent. My estimates show that consumers incur significant search costs, and ignoring costly search overestimates the own-price elasticity for products more often present in consideration sets and underestimates the elasticity of frequently excluded products. Firms employ marketing devices, such as product displays and advertising, to influence consideration sets. These devices have direct and strategic effects, which I explore using the estimates of the model. I find that using marketing devices to reduce a product’s search cost during a price promotion has modest effects on the overall category revenues, and decreases the revenues of some products.     

Why is Price Dispersion Higher Online than Offline? The Impact of Retailer Type and Shopping Risk on Price Dispersion

When physically similar products, of similar quality, are offered by retailers both online and offline, we often observe that the dispersion in prices of these products online is greater than the price dispersion offline. This observation runs counter to early theories that suggested price dispersion online would be smaller than that offline due to the ease of search and information availability online. This paper investigates and provides an explanation for this puzzling phenomenon by examining the impact of two important drivers of price dispersion: retailer type and consumers’ shopping risk. Retailer type refers to whether a retailer is a pure offline, pure online, or dual channel retailer. Shopping risk is defined as the product of consumers’ perceived risk of shopping and the transaction uncertainty related to shopping at different types of retailers.A game-theoretic approach is adopted to model consumers’ price search and product purchase, as well as price competition within and across retailer types in online and offline markets. Equilibrium pricing strategies are derived for different retailer types competing for different consumer segments with different levels of perceived shopping risk. The impact of retailer type and shopping risk on online versus offline price dispersion are quantified, and conditions when price dispersion is greater online than offline are identified.Results indicate that price dispersion is greater online when the number of pure online retailers is sufficiently large and is increasing in the number of pure online retailers. In addition, a reduction in online shopping risk may actually increase online price dispersion. Results further suggest that even without any online sales, dual channel retailers should maintain their online presence for the purpose of information dissemination, which justifies the importance for pure offline retailer to incorporate webrooming strategies, where consumers can search for prices online but purchase offline.     

Something Free or Something Off? A Comparative Study of the Purchase Effects of Premiums and Price Cuts

As an alternative to promotional price cuts, retailers and manufacturers often rely on non-price promotion techniques, such as premium promotions, where consumers receive a free gift with the purchase of a product. We compare the effectiveness of premiums to that of price cuts, and study moderators of this comparative premium effectiveness. We use data from a large online shopping simulation study with more than 2,000 participants to model consumers’ purchase decisions in response to premiums and price cuts. Results indicate that the impact of premiums on purchase behavior is systematically lower than that of equivalent price cuts. However, a premium’s smaller sales impact may be offset by a cost advantage. This is especially true for private label brands where the premium’s purchase effects do not differ too much from those of a price cut. We calculate how large the cost advantage has to be for a premium to be more profitable than a price cut, and show that premiums entail risks as well as opportunities, for both manufacturers and retailers.     

Inclusive apparel shopping experiences for older consumers in China: product attributes and retail environment

ABSTRACT

The study explored apparel shopping experiences of older Chinese consumers, which integrate apparel product and retail environment aspects from an inclusive strategy perspective. Research questions include: What factors contribute to older Chinese consumers’ satisfaction and dissatisfaction? What are the major implications of older consumers’ (dis)satisfying shopping experience? What role can fashion practitioners play to make the retail environment and apparel products more accessible to the aging segment? Critical Incident techniques were used for data collection at a community park in Beijing. A total of 151 usable critical incidents from 84 older Chinese informants (55 years and older) were included in the data analysis. Content analysis with deductive qualitative data analysis method was used. Findings suggest that the older Chinese consumers assess their shopping experiences largely based on shopping outcome achieved (product purchased). This is in contrast to the movement toward more experiential focus in the developed markets in the recent decades. A significant number of tangible product attributes (including design/styling, comfortability/fit, and material) and intangible attributes (such as price and product assortment) contributed to the older Chinese informants’ satisfying or dissatisfying shopping experience. Aspects related to retail environment, including retail atmospherics and service quality were also important, but to a lesser extent than product attributes. This study represents an early attempt to explore how the tangible and intangible aspects of product attributes and retail environment contribute to the aging Chinese consumer’s shopping experience. Findings of the Chinese older consumers’ utilitarian, rather than experiential focus in their shopping experience evaluation provide insights on this market segment and valuable implications are developed.     

The Impact of Price Disclosure on Dynamic Shopping Decisions

A potentially powerful way to assist consumers in making dynamic shopping decisions is to disclose price information to them before they shop, for example by posting prices on the Internet. This paper addresses the differential impact of disclosing either only current, or both current and future prices, on consumer shopping decisions in multi-period tasks involving multiple product purchases. In the context of an Internet-based experiment, we find that consumer expenditure deviates more strongly from that of a normative model when both current and future prices are disclosed than if only current prices are disclosed. We investigate the behavioral effects underlying this finding by estimating a model that allows for variations in consumer discounting, strength of store price format preferences, as well as choice consistency between different price disclosure conditions.     

Second Sourcing with Capacity Constrained Firms and Locked-In Buyers

I begin by surveying the motivations for second-sourcing agreements in the absence of licensing fees. I then focus on a particular motivation – that of an incumbent wanting to relax a capacity constraint. I develop a general model with buyers locked into a product, and find necessary and sufficient conditions for an incumbent to benefit from the presence of rivals without any need to sign contracts with them, in contrast with Dick (1992) and with the literature on subcontracting. I show that multiple equilibria due to the self-fulfilling expectations of rivals are possible. With regards to policy, I find that, with homogeneous buyers, a monopolist incumbent will produce where price and marginal cost coincide. I illustrate the model’s results with observations from the semiconductor industry.     

Does Online Information Drive Offline Revenues?: Only for Specific Products and Consumer Segments!

While many offline retailers have developed informational websites that offer information on products and prices, the key question for such informational websites is whether they can increase revenues via web-to-store shopping. The current paper draws on the information search literature to specify and test hypotheses regarding the offline revenue impact of adding an informational website. Explicitly considering marketing efforts, a latent class model distinguishes consumer segments with different short-term revenue effects, while a Vector Autoregressive model on these segments reveals different long-term marketing response.We find that the offline revenue impact of the informational website critically depends on the product category and customer segment. The lower online search costs are especially beneficial for sensory products and for customers distant from the store. Moreover, offline revenues increase most for customers with high web visit frequency. We find that customers in some segments buy more and more expensive products, suggesting that online search and offline purchases are complements. In contrast, customers in a particular segment reduce their shopping trips, suggesting their online activities partially substitute for experiential shopping in the physical store. Hence, offline retailers should use specific online activities to target specific product categories and customer segments.     

An Investigation of Consumer Brand Choice Behavior Across Different Retail Formats

There has been a blurring with respect to the retail formats because of competition and proliferation of different types of formats. In this research, we use a unique scanner panel dataset to investigate how brand choice behavior varies for the same consumer shopping for the same brand across different retail formats. We develop hypotheses pertaining to promotion sensitivity, price sensitivity, package size preference, and effects of demographic and shopping variables on consumer brand choice behavior and test them using a multi-format probit choice model that allows for the estimation of the cross-format differences with respect to the above. We find that consumers exhibit different promotion and price sensitivities in brand choice behavior between the mass merchandise format and supermarkets. Discussions and insights are provided.     

The effect of exogenous product familiarity on endogenous consumer search

When a consumer is familiar with one product but not its competitor, she is faced with a decision: either buy what she knows, or engage in search to learn more. When search is costly, competing firms may attempt to encourage or discourage search by adjusting prices. In this paper we consider how competitive dynamics between two quality differentiated firms are affected if one product enjoys a familiarity advantage. Familiarity is defined as a consumer’s ex-ante knowledge of fit for a particular product. An increase in the level of familiarity for one product allows a firm to charge higher prices since there are more consumers with information on that product relative to the competition. We call this the direct effect of familiarity. However, an increase in familiarity also has an indirect effect, since it gives the rival firm a stronger incentive to decrease price in order to encourage searching, in turn increasing overall competition. The effect of familiarity on profits depends on the magnitudes of these effects, and it is moderated by the level of quality differentiation between products. For very high or very low levels of differentiation, the results are relatively straightforward. However, when the level of differentiation is moderate, the results are more nuanced, with the higher-quality firm realizing higher profits from more familiarity, even if it must lower prices due to the indirect effect. We also find that, contrary to conventional wisdom, overall competition may be higher when firms are more quality differentiated. This is driven by the fact that higher quality differences bolster the indirect effect, with a lower quality firm providing deeper price cuts to counter increased familiarity of a high quality rival. We conclude by examining how changes in the cost of searching impact equilibrium outcomes.

     

The influence of multi-channel pricing strategy on price fairness and customer confusion

ABSTRACT

Multi-channel retailers face the challenge of coordinating marketing variables across their channels. In this respect, one of the main issues arising is whether to differentiate or integrate prices. Our study examines the impact of three multi-channel price differentiation instruments on perceived price fairness, customer confusion, and their consequences. In a scenario-based online experiment, we use a 2 x 2 × 2 between-subjects design and manipulate product price differentiation, online promotion and online shipping fees. The results indicate that price differentiation has an impact on fairness evaluations and customer confusion. Product price differentiation and online promotion are perceived as more unfair and lead to more confusion than price parity. Price fairness perceptions of shipping fees depend on product price differentiation. Customers perceive shipping fees as fairer than no shipping fees when prices are cheaper online but perceive shipping fees as less fair when prices are integrated. These results suggest that customers expect a consistent consideration of channel cost advantages and disadvantages and that shipping fees might serve as a cue for customers to consider the retailer’s channel costs. We further show that price fairness and customer confusion mediate effects of pricing instruments (in particular online promotion) on attitudinal and behavioral consequences.     

Social shopping promotions from a social merchant's perspective

Taking advantage of Web 2.0's user-participation and social networking capabilities, social shopping intermediaries have emerged as a promising online liaison between merchants and consumers by offering group discount deals to price-sensitive customers and early technology adopters. Our study compares the two most popular types of social merchants—restaurants and healthcare services—in terms of seven key factors that influence a merchant's sales using a Groupon promotion. We find that these two types of social merchants show significantly different characteristics for successful promotions. Based on a new proposed lifetime value model for social shopping promotions, this study also discusses its applicability with an illustration of the model and presents guidelines for social merchants who want to achieve the maximum lifetime value from a social shopping promotion. Finally, we discuss implications of our study for social merchants and social shopping intermediaries.     

Better or Worse? Effects of online promotion habits on customer value: An empirical study

Online frequent and uninterrupted price discounts easily cause customers to form general tendencies to purchase promotions, or ‘online promotion habits’. Compared with offline promotion shopping, the distinct features of online promotion shopping make customer behaviours highly changeable and leave the effects of online promotion habits on customer value a puzzle. Using a dataset of real transactions from a leading online apparel retailer in China, this study makes continuous observations of customers’ online promotion habits. Drawing on the behavioural learning theory, we empirically investigate the dynamic effects of online promotion habits on customer value. The results reveal that after customers form online promotion habits, their customer value increases significantly. Furthermore, among customers with online promotion habits, online promotion habits exert an inverted U-shaped effect on customer value. Namely, as online promotion habits strengthen, customer value increases accordingly, yet negative outcomes show if online promotion habits exceed a certain level. We discuss the theoretical and managerial implications of our findings, which will enable researchers and practitioners to measure and dynamically manage customers’ online promotion habits.     

Electronic Commerce Encourages Differentiation

Abstract

This paper explores why and how ecommerce firms differentiate their products and services. Consumers who shop online are able to do quick and easy comparison shopping, including shopping in an active market for used goods. Since online product search and price comparisons are faster, easier, and involve fewer shopping costs, firms who sell online must differentiate their products and services to a greater extent than those who do not sell online. These product and service differentiations may be certified and rated by host shopping sites and by outside ratings companies.     

Product perishability and multistore grocery shopping

Perishability, a largely unconsidered characteristic of consumer goods, is shown to play an important role in planned multistore shopping behavior. We present a model of consumers as cost minimizing inventory managers, who choose between two stores differentiated on location and price, and who purchase perishable and nonperishable goods. We show that the interaction between perishability of goods and price differences of stores can be an important driving force for planned multistore shopping. This rationale leads to a set of propositions. One unexpected result is that as the known price difference on a basket of identical goods increases between two stores, shoppers making store choice decisions on the basis of the basket price are more likely to shop regularly at both stores. We present survey results supporting our model’s predictions.     

The Generalized Nash Bargaining Solution for Transfer Price Negotiations Under Incomplete Information

In our model two divisions negotiate over type-dependent contracts to determine an intrafirm transfer price for an intermediate product. Since the upstream division’s (seller’s) costs and downstream division’s (buyer’s) revenues are supposed to be private information, we formally consider cooperative bargaining problems under incomplete information. This means that the two divisions consider allocations of expected utility generated by mechanisms that satisfy (interim) individual rationality, incentive compatibility and/or ex post efficiency. Assuming two possible types for buyer and seller each, we first establish that the bargaining problem is regular, regardless whether or not incentive and/or efficiency constraints are imposed. This allows us to apply the generalized Nash bargaining solution to determine fair transfer payments and transfer quantities. In particular, the generalized Nash bargaining solution tries to balance divisional profits, while incentive constraints are still in place. In that sense a fair profit division is generated. Furthermore, by means of illustrative examples we derive general properties of this solution for the transfer pricing problem and compare the model developed here with the models existing in the literature. We demonstrate that there is a tradeoff between ex post efficiency and fairness.     

Antecedents of private label attitude and national brand promotion attitude: similarities and differences

A model that addresses the similarities and differences in conceptual antecedents of attitudes toward private label grocery products and national brand promotions is proposed and tested. The proposed model is tested using a sample of 300 consumers who were recruited from grocery stores, provided behavioral data from sales receipts of their shopping trip, and responded to a survey that contained multi-item construct measures. We predict and find in the study that both price and nonprice related constructs impact both private label attitude and national brand promotion attitude, but the directionality and strength of several of these relationships differ. Implications of these findings for retailers and national manufacturers are discussed.     

What drives competitive webrooming? The roles of channel and retailer aspects

ABSTRACT

Competitive webrooming, the phenomenon in which consumers gather product information online but ultimately purchase the product in an offline store of a competing retailer, has gained traction and become a major threat for retailers. To gain a deeper understanding of its drivers, we surveyed 1081 retail customers about their most recent consumer electronic product purchase to examine the impact of channel-related aspects as well as retailer-related aspects – a dual approach that has not been applied previously. A channel’s anticipated after-sales service and price level are the strongest predictors for webrooming. Moreover, retailer aspects determine whether customers simultaneously switch retailer when webrooming. A retailer’s assurance of delivery, including payment modalities, return policies, and product obtainment, as well as competitive product prices motivate consumers to switch retailer when webrooming. These results suggest that customers have a fundamental need for certainty within and after the buying process, which can be satisfied by both channel and retailer. Additionally, this is the first study to empirically test for interactions between channel and retailer aspects, as they are likely to occur in real shopping situations. We identified two interactions: First, a retailer’s assurance of delivery can compensate for an anticipated lack of a channel’s after-sales service, dampening the impact of the latter on competitive webrooming. Second, retailer’s price attractiveness acts in a similar vein. Hence, to steer customers into channels and/or keep them with the company, retailers should emphasize their price attractiveness as well as assurance of delivery.     

From Fatwallet to eBay: An investigation of online deal-forums and sales promotions

Sales promotions are an important part of retail advertising strategy. Traditionally, research on sales promotions has generally assumed that the buyers are end consumers who do not engage in reselling, in large part due to high transaction costs. However, the recent Internet related technologies have dramatically lowered the cost of transferring goods between consumers, leading to relative ease of reselling activity amongst individual consumers. Little is known about the impact of this phenomenon on retailer's sales promotion strategy. In this research we investigate the reselling activity in online auctions for products that active deal seekers can obtain at deeply discounted prices from retailers. We further investigate the role of deal-forums in the resale process. Data is collected from an online deal-forum (http://www.fatwallet.com/) and eBay to test various reselling-related hypotheses. The results show that there is a significant abnormal increase in the number of newly posted auctions of a product after the deal information of this product is posted on deal-forum website. We also find that there is a significant price incentive for individuals to resell. The implications for sales promotion research and practice are discussed.     

Consumer product search and purchase behaviour using various retail channels: the role of perceived retail usefulness

The purpose of this study was to examine the influences of consumers' perceptions of retail usefulness for product information search and their previous purchase satisfaction on their frequencies of product information search and product purchase behaviours for apparel products. These relationships were investigated in five retail settings – Internet shopping, catalogue shopping, television shopping, local retail shopping, and non‐local retail shopping. One hundred seventy‐six students in a US Midwestern university provided usable responses. The results of causal model analyses showed that the proposed model fits the data well for all five retail channels. Consumers who perceived a certain retail channel more useful for product information search searched for product information more frequently via that retail channel, and purchased products more often via that retail channel. Consumers who were more satisfied with apparel purchases from a retail channel purchased the products more frequently via that retail channel. Theoretical and managerial implications are discussed.