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Author: José Luis Moraga-González
Publisher:
ISBN:
Category :
Languages : en
Pages : 31
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Book Description
Author: José Luis Moraga-González
Publisher:
ISBN:
Category :
Languages : en
Pages : 31
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Book Description
Author: José L. Moraga González
Publisher:
ISBN:
Category : Consumer behavior
Languages : en
Pages : 51
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Book Description
This paper extends the literature on simultaneous search by allowing for differentiated products and consumer search cost heterogeneity. In a duopolistic market, consumers with sufficiently low search costs choose to inspect the products of the two firms and purchase, if any, the most suitable; consumers with higher search costs choose to examine just one of the products; consumers with prohibitively high search costs do not check any of the products and drop out of the market altogether. For arbitrary search cost distributions, when match values are assumed to be uniformly distributed, a symmetric price equilibrium always exists. We provide a necessary and sufficient condition on the search cost distribution under which an increase in the costs of search of all consumers may result in a lower, equal or higher equilibrium price. The effects of prominence on equilibrium prices are also studied. The prominent firm charges a higher price than the non-prominent firm and both their prices are below the symmetric equilibrium price. Consequently, with simultaneous search, market prominence increases the surplus of consumers. In an extension, we provide conditions under which the equilibrium of the N-firm model exists.
Author: Martin Obradovits
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Especially in many online markets, consumers can readily observe prices, but may need to further inspect products to assess their suitability. We study the effects of product differentiation and search costs on competition and market outcomes in a tractable model of price-directed consumer search. We find that (i) firms' equilibrium pricing always induces efficient search behavior, (ii) for relatively large product differentiation, welfare distortions still occur because some consumers (may) forgo consumption, and (iii) lower search costs lead to stochastically higher prices, increasing firms' expected profits and decreasing their frequency of sales. Consumer surplus often falls when search costs decrease.
Author: John Beath
Publisher: Cambridge University Press
ISBN: 9780521335522
Category : Business & Economics
Languages : en
Pages : 220
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Book Description
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.
Author: José L. Moraga González
Publisher:
ISBN:
Category : Consumer behavior
Languages : en
Pages : 35
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Book Description
We study price formation in a model of consumer search for differentiated products when consumers have heterogeneous marginal search costs. We provide conditions under which a symmetric Nash equilibrium exists and is unique. Search costs affect two margins -- the intensive search margin (or search intensity) and the extensive search margin (or the decision to search rather than to not search at all). These two margins affect the elasticity of demand in opposite directions and whether lower search costs result in higher or lower prices depends on the properties of the search cost density. When the search cost density has the increasing likelihood ratio property (ILRP), the effect of lowering search costs on the intensive search margin has a dominating influence and prices decrease. By contrast, when the search cost density has the decreasing likelihood ratio property (DLRP), the effect on the extensive search margin is dominant and lower search costs result in higher prices. We compare these results with those obtained when consumers have heterogeneous fixed search costs.
Author: Lin Liu
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Simon P. Anderson
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
We study price competition in the presence of search costs and product differentiation. The limit cases of the model are the "Bertrand Paradox," the "Diamond Paradox," and Chamberlinian monopolistic competition. Market prices rise with search costs and decrease with the number of firms. Prices may initially fall with the degree of product differentiation because more diversity leads to more search and more competition. Equilibrium diversity rises with search costs, while the optimum level falls, so entry is excessive. The market failure is most pronounced for low preference for variety and high search costs.
Author: Simon P. Anderson
Publisher: MIT Press
ISBN: 9780262011280
Category : Business & Economics
Languages : en
Pages : 454
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"The discrete choice approach provides an ideal framework for describing the demands for differentiated products and can be used for studying most product differentiation models in the literature. By introducing extra dimensions of product heterogeneity, the framework also provides richer models of firm location and product selection."--BOOK JACKET.
Author: Sachin Jayaswal
Publisher:
ISBN:
Category :
Languages : en
Pages : 155
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Book Description
In this dissertation, we study the interplay between a firm's operations strategy, with regard to its capacity management, and its marketing decision of product differentiation. For this, we study a market comprising heterogeneous customers who differ in their preferences for time and price. Time sensitive customers are willing to pay a price premium for a shorter delivery time, while price sensitive customers are willing to accept a longer delivery time in return for a lower price. Firms exploit this heterogeneity in customers' preferences, and offer a menu of products/services that differ only in their guaranteed delivery times and prices. From demand perspective, when customers are allowed to self-select according to their preferences, different products act as substitutes, affecting each other's demand. Customized product for each segment, on the other hand, results in independent demand for each product. On the supply side, a firm may either share the same processing capacity to serve the two market segments, or may dicate capacity for each segment. Our objective is to understand the interaction between product substitution and the firm's operations strategy (dedicated versus shared capacity), and how they shape the optimal product differentiation strategy. To address the above issue, we first study this problem for a single monopolist firm, which offers two versions of the same basic product: (i) regular product at a lower price but with a longer delivery time, and (ii) express product at a higher price but with a shorter delivery time. Demand for each product arrives according to a Poisson process with a rate that depends both on its price and delivery time. In addition, if the products are substitutable, each product's demand is also influenced by the price and delivery time of the other product. Demands within each category are served on a first-come-first-serve basis. However, customers for express product are always given priority over the other category when they are served using shared resources. There is a standard delivery time for the regular product, and the firm's objective is to appropriately price the two products and select the express delivery time so as to maximize its profit rate. The firm simultaneously needs to decide its installed processing capacity so as to meet its promised delivery times with a high degree of reliability. While the problem in a dedicated capacity setting is solved analytically, the same becomes very challenging in a shared capacity setting, especially in the absence of an analytical characterization of the delivery time distribution of regular customers in a priority queue. We develop a solution algorithm, using matrix geometric method in a cutting plane framework, to solve the problem numerically in a shared capacity setting. Our study shows that in a highly capacitated system, if the firm decides to move from a dedicated to a shared capacity setting, it will need to offer more differentiated products, whether the products are substitutable or not. In contrast, when customers are allowed to self-select, such that independent products become substitutable, a more homogeneous pricing scheme results. However, the effect of substitution on optimal delivery time differentiation depends on the firm's capacity strategy and cost, as well as market characteristics. The optimal response to any change in capacity cost also depends on the firm's operations strategy. In a dedicated capacity scenario, the optimal response to an increase in capacity cost is always to offer more homogeneous prices and delivery times. In a shared capacity setting, it is again optimal to quote more homogeneous delivery times, but increase or decrease the price differentiation depending on whether the status-quo capacity cost is high or low, respectively. We demonstrate that the above results are corroborated by real-life practices, and provide a number of managerial implications in terms of dealing with issues like volatile fuel prices. We further extend our study to a competitive setting with two firms, each of which may either share its processing capacities for the two products, or may dedicate capacity for each product. The demand faced by each firm for a given product now also depends on the price and delivery time quoted for the same product by the other firm. We observe that the qualitative results of a monopolistic setting also extend to a competitive setting. Specifically, in a highly capacitated system, the equilibrium prices and delivery times are such that they result in more differentiated products when both the firms use shared capacities as compared to the scenario when both the firms use dedicated capacities. When the competing firms are asymmetric, they exploit their distinctive characteristics to differentiate their products. Further, the effects of these asymmetries also depend on the capacity strategy used by the competing firms. Our numerical results suggest that the firm with expensive capacity always offers more homogeneous delivery times. However, its decision on how to differentiate its prices depends on the capacity setting of the two firms as well as the actual level of their capacity costs. On the other hand, the firm with a larger market base always offers more differentiated prices as well as delivery times, irrespective of the capacity setting of the competing firms.
Author: Ilya Morozov
Publisher:
ISBN:
Category :
Languages : en
Pages :
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In the first chapter of this paper, I study how much consumers benefit from new products in markets with information frictions. I analyze new products in the U.S. hard drive market, a market with ample product innovation. Using unique browsing data, I measure the magnitude of two frictions, limited consideration and costly search, and show that both play a crucial role in shaping consumer demand. Omitting these frictions from analysis makes the researcher underestimate consumer surplus from new hard drives, as it appears that consumers do not like the attributes these hard drives offer. Partly eliminating frictions substantially increases consumers' ability to benefit from new hard drives. In the second chapter, I study the estimation of preference heterogeneity in markets where consumers engage in costly search to learn product characteristics. Costly search amplifies the way consumer preferences translate into purchase probabilities, generating a seemingly large degree of preference heterogeneity. We develop a search model that allows for flexible heterogeneity in preferences and estimate its parameters using a unique panel dataset on the search and purchase behavior of consumers. The estimation results reveal that when search costs are ignored, the model overestimates standard deviations of product intercepts by 68%. We show that the bias in heterogeneity estimates leads to incorrect inference about price elasticities and seller markups and has important consequences for targeted marketing.
