We analyze price and quality competition in a vertically differentiated duopoly in which consumers have a preference for variety. The variety-seeking preferences are a consequence of diminishing marginal utility for repeated consumption experiences of the same product. We find that variety-seeking preferences can either soften or intensify price competition, depending on the range of feasible qualities and the strength of consumer preference for variety. When the range of feasible qualities is small enough, prices are higher than would be obtained in the absence of variety seeking - leading to higher profits - and competing firms choose to minimally differentiate themselves from each other. On the other hand, if qualities are exogenously set to be different enough from each other then stronger preferences for variety are associated with moreintense price competition and lower profits.

We study competitive positioning and pricing strategies in markets where consumers seek variety. Variety seeking behavior is modeled as a decrease in the willingness to pay for the product purchased on the previous purchase occasion. Using a three-stage Hotelling-type model, we show that the presence of variety seeking consumers reduces product differentiation offered in equilibrium, thereby explaining some otherwise counterintuitive findings in empirical research. We find that firms charge higher prices in Period 1 and lower prices in Period 2. The lower price in Period 2 represents the price incentive that firms need to offer to prevent the variety seeking consumers from switching. Furthermore, we find that the observed switching in a market may not fully capture the true magnitude of the underlying variety seeking tendencies among consumers. Finally, we show that the presence of variety seeking consumers leads to lower firm profits and a higher consumer surplus. Surplus increases for variety seeking consumers as well as regular consumers. Therefore, the presence of variety seeking consumers benefits everyone in the market.

This unique reference explores the processes and nuances of human habits through social psychology and behavioral lenses. It provides a robust definition and theoretical framework for habit as well as up-to-date information on habit measurement, addressing such questions as which mechanisms are involved in habitual action and whether people can report accurately on their own habits. Specialized chapters pay close attention to how habits can be modified, as well as widely varying manifestations of habitual thoughts and behaviors, including the mechanisms of drug addiction and recovery, the repetitive characteristics of autism, and the unwitting habits of health professionals that may impede patient care. And across these pages, contributors show the potential for using the processes of maladaptive habits to replace them with positive and health-promoting ones. Throughout this volume attention is also paid to the practice of conducting habit research. Among the topics covered: Habit mechanisms and behavioral complexity. Complexities and controversies of physical activity habit. Habit discontinuities as vehicles for behavior change. Habits in depression: understanding and intervention. A critical review of habit theory of drug dependence. Questions about the automaticity of habitual behaviors. The Psychology of Habit will interest psychologists across a wide spectrum of domains: habit researchers in broader areas of social and health psychology, professionals working in (sub)clinical areas, interested scholars in marketing, consumer research, communication, and education, and public policymakers dealing with questions of behavioral change in the areas of health, sustainability, and/or education.

There are few industries in modern market economies that do not manufacture differentiated products. This book provides a systematic explanation and analysis of the widespread prevalence of this important category of products. The authors concentrate on models in which product selection is endogenous. In the first four chapters they consider models that try to predict the level of product differentiation that would emerge in situations of market equilibrium. These market equilibria with differentiated products are characterised and then compared with social welfare optima. Particular attention is paid to the distinction between horizontal and vertical differentiation as well as to the related issues of product quality and durability. This book brings together the most important theoretical contributions to these topics in a succinct and coherent manner. One of its major strengths is the way in which it carefully sets out the basic intuition behind the formal results. It will be useful to advanced undergraduate and graduate students taking courses in industrial economics and microeconomic theory.