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Copyright of Conservation Biology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction: Evidence shows that price is an important policy lever in reducing consumption of alcohol and tobacco. However, there is little evidence of the cross‐price effect between alcohol and tobacco. Methods: This paper uses an econometric model which estimates participation and consumption elasticities, on data from the UK Living Costs and Food Survey 2006–2017 and extends the literature by, for the first time, estimating joint price elasticities for disaggregated alcohol and tobacco products. This paper presents new price elasticities and compares them to the existing literature. Results: The own‐price elasticity estimates are all negative for both participation and consumption. There is no pattern to the estimates of cross‐price elasticities. The elasticity estimates, when used in the Sheffield Tobacco and Alcohol Policy Model, produce bigger changes in consumption for the same change in price compared to other elasticity estimates in the existing literature. Discussion and Conclusions: Consumption of alcohol and tobacco are affected by the prices of one another. Policymakers should bear this in mind when devising alcohol or tobacco pricing policies. [ABSTRACT FROM AUTHOR]

Estimating demand for large assortments of differentiated goods requires the specification of a demand system that is sufficiently flexible. However, flexible models are highly parameterized so estimation requires appropriate forms of regularization to avoid overfitting. In this paper, we study the specification of Bayesian shrinkage priors for pairwise product substitution parameters. We use a log-linear demand system as a leading example. Log-linear models are parameterized by own and cross-price elasticities, and the total number of elasticities grows quadratically in the number of goods. Traditional regularized estimators shrink regression coefficients towards zero which can be at odds with many economic properties of price effects. We propose a hierarchical extension of the class of global-local priors commonly used in regression modeling to allow the direction and rate of shrinkage to depend on a product classification tree. We use both simulated data and retail scanner data to show that, in the absence of a strong signal in the data, estimates of price elasticities and demand predictions can be improved by imposing shrinkage to higher-level group elasticities rather than zero. [ABSTRACT FROM AUTHOR]

In a marine multi-species environment, consumers' decisions may introduce interactions between species beyond biological ecosystem links. The theoretical literature shows that consumer preferences for variety can trigger a sequential (local) extinction of fish stocks. However, consumer preferences are not yet fully understood empirically, as it is uncertain how variety-loving consumers really are, in particular in specific settings such as in developing countries. In this article, we present an aggregation procedure to study consumer preferences in a highly diverse marine system. In a first step, we use co-integration analysis and aggregation theorems by Hicks and Lewbel to find groups of species that consumers find substitutable. In a second step, we use a direct quadratic almost ideal demand system (QUAIDS) to estimate price elasticities between these groups. We then quantify and compare welfare losses and spillovers from species-specific price shocks that may for example result from restoration efforts. Our case study from Senegal across 28 species reveals evidence that consumers do indeed have a preference for diversity of species on their plates. [ABSTRACT FROM AUTHOR]

This paper addresses the relative effectiveness of market vs program based climate policies. We compute the carbon price resulting in an equivalent reduction in energy from programs that eliminate the efficiency gap. A reduced-form stochastic frontier energy demand analysis of plant level electricity and fuel data, from energy-intensive chemical sectors, jointly estimates the distribution of energy efficiency and underlying price elasticities. The analysis obtains a decomposition of efficiency into persistent (PE) and time-varying (TVE) components. Total inefficiency is relatively small in most sectors and price elasticities are relatively high. If all plants performed at the 90th percentile of their efficiency distribution, the reduction in energy is between 4% and 37%. A carbon price averaging around $31.51/ton CO2 would achieve reductions in energy use equivalent to all manufacturing plants making improvements to close the efficiency gap. [ABSTRACT FROM AUTHOR]

The research investigates optimal pricing and inventory policies in the case in which the demands of different periods are identical. However, the supplies fluctuate due to cycles in nature as well as additional environmental and other factors. Each cycle contains two periods or seasons. A peak season with a large given supply is followed by a regular season with a small supply. The model deals with deterministic supply and the question of what policy is adopted regarding the quantities produced and sold in the markets at each period. It first considers the case without the use of inventory for delivery between periods. In the second case, inventory that can be produced at the peak period is only for sale at the regular period. It is sold as non-fresh inventory that is a 'supplement' to the fresh output produced at the regular period. [ABSTRACT FROM AUTHOR]

This paper investigates the performance of the Quadratic Almost Ideal Demand System (QUAIDS) with and without accounting for the consistent two-step estimation for censoring of the dependent variable as well as the use of quality-adjusted prices. The demand systems are estimated for a commodity that has a relatively low consumption level in the German market, fish. Thus, the zero observations are quite high and the need of a correction procedure is more urgent. The results show differences in the applied methods. It turns out that ignoring consistent two-step estimation and quality-adjusted prices leads to less elastic demand estimates. [ABSTRACT FROM AUTHOR]

We propose a methodology that estimates the composition of separable demand groups using retail scanner data. This paper presents a methodology for identifying groups of products that exhibit similar patterns in demand and responsiveness to changes in price using store-level sales data. We use the concept of economic separability as the basis for establishing similarity between products and build a weakly separable model of aggregate demand. A common issue with separable demand models is that the partition of products into separable groups must be known a priori, which severely shrinks the set of admissible substitution patterns. We develop a methodology that allows the partition to be an estimated model parameter. In particular, we specify a log-linear demand system in which weak separability induces equality restrictions on a subset of cross-price elasticity parameters. An advantage of our approach is that we are able to find groups of separable products rather than just test whether a given set of groups is separable. Our method is applied to two aggregate, store-level data sets. We find evidence that the separable structure of demand can be inconsistent with category labels, which has implications for optimal category marketing strategies. [ABSTRACT FROM AUTHOR]

If, when and where to travel is normally planned in advance. Hence, the exchange rate at the time of booking accommodation is likely to play an important role in determining inbound tourist demand. That fluctuations in the exchange rate influence inbound hotel demand is well established in the literature, but the lag with which it influences demand has received limited attention. This paper sets out to remedy this, by estimating the elasticity of hotel demand and its lag structure with respect to exchange rate fluctuations. Our data consists of a panel of hotel beds sold per month in Norway to tourists from ten different source countries. Models with source country fixed effects were used to obtain the estimates. We find evidence that demand is approximately unit elastic and that it operates with a lag of two to three quarters with respect to the exchange rate. The latter result is key since it enables improved medium-term demand forecasts in the tourist industry. [ABSTRACT FROM AUTHOR]

This paper investigates the main determinants of Telecommunications demand for European Union (EU) countries using a panel data set for 19 EU countries over the period 1991-2010, capturing the years before and after the liberalization process. The goal is to clarify whether any changes in the demand of Telecommunications, as expressed by volume of traffic in local, mobile and international market segments, are attributed to regulatory process or to some other major drivers, taking also into account the relevant price elasticities. It turns out that the regulatory process does not seem to have significant impact on demand for Telecommunications services for the first period of liberalization. [ABSTRACT FROM AUTHOR]

During recent decades, water demand estimation has gained considerable attention from scholars. From an econometric perspective, the most used functional forms include log-log and linear specifications. Despite the advances in this field and the relevance for policymaking, little attention has been paid to the functional forms used in these estimations, and most authors have not provided justifications for their selection of functional forms. A discrete continuous choice model of the residential water demand is estimated using six functional forms (log-log, full-log, log-quadratic, semilog, linear, and Stone-Geary), and the expected consumption and price elasticity are evaluated. From a policy perspective, our results highlight the relevance of functional form selection for both the expected consumption and price elasticity. [ABSTRACT FROM AUTHOR]

Background: There is a need for accurate and precise food price elasticities (PE, change in consumer demand in response to change in price) to better inform policy on health-related food taxes and subsidies.Methods/design: The Price Experiment and Modelling (Price ExaM) study aims to: I) derive accurate and precise food PE values; II) quantify the impact of price changes on quantity and quality of discrete food group purchases and; III) model the potential health and disease impacts of a range of food taxes and subsidies. To achieve this, we will use a novel method that includes a randomised Virtual Supermarket experiment and econometric methods. Findings will be applied in simulation models to estimate population health impact (quality-adjusted life-years [QALYs]) using a multi-state life-table model. The study will consist of four sequential steps: 1. We generate 5000 price sets with random price variation for all 1412 Virtual Supermarket food and beverage products. Then we add systematic price variation for foods to simulate five taxes and subsidies: a fruit and vegetable subsidy and taxes on sugar, saturated fat, salt, and sugar-sweetened beverages. 2. Using an experimental design, 1000 adult New Zealand shoppers complete five household grocery shops in the Virtual Supermarket where they are randomly assigned to one of the 5000 price sets each time. 3. Output data (i.e., multiple observations of price configurations and purchased amounts) are used as inputs to econometric models (using Bayesian methods) to estimate accurate PE values. 4. A disease simulation model will be run with the new PE values as inputs to estimate QALYs gained and health costs saved for the five policy interventions.Discussion: The Price ExaM study has the potential to enhance public health and economic disciplines by introducing internationally novel scientific methods to estimate accurate and precise food PE values. These values will be used to model the potential health and disease impacts of various food pricing policy options. Findings will inform policy on health-related food taxes and subsidies.Trial Registration: Australian New Zealand Clinical Trials Registry ACTRN12616000122459 (registered 3 February 2016). [ABSTRACT FROM AUTHOR]

The production of farmed fish is growing rapidly and presents a sustainable and possibly low-cost alternative to wild fish. Thus, we may expect retail prices of farmed to be lower than prices of wild fish and demand to be less elastic. Otherwise, marketing of farmed fish may generate some extra value that justifies higher prices and may exhibit more elastic demand. To test these hypotheses, we employ monthly household scanner panel data for Germany from 2006 to 2010 for six frozen seafood products that include farmed and wild fish. A QUAIDS model is estimated by a consistent two-step procedure to account for censoring of the dependent variable. We find consumers to be price sensitive, particularly with regard to the high-value seafood species salmon and shrimp. This price elastic market implies that the German seafood industry still has the potential for growing revenues if production increases. [ABSTRACT FROM AUTHOR]

The objective of this research is to estimate price (direct and cross) and expenditure elasticities for major food commodities in Egypt. The food commodities are divided into six sub-models depending on the homogeneity within each group of commodities and the data availability quantities consumed and the corresponding retail prices for each individual item. Some commodities are aggregated in groups such as other beans, other vegetables, fruits(1), fruits(2) and oils. The Linear Almost Ideal Demand System (LAIDS) model is applied in estimating a system of demand equations for each group of food commodities. To avoid the invalid inference and spurious regression problems that may be created by non-stationary data series, the Fully Modified Least Squares (FMLS) estimator is utilized. The demand parameters satisfy the Engel aggregation, cournot aggregation, homogeneity and symmetry conditions. The results indicate that expenditure elasticities of the majority of food commodities/groups are less than the unity except fot the fruits2 (1.110), indicating necessity effects. This can be also interpreted as following the increasing of consumptions of these commodities is strongly connected with increasing of all income levels. The results also show that the own price elasticities for food commodities/ groups are inelastic. For fruits 2, its inelastic own price elasticity still indicates that it tends to be very sensitive to price changes. The relative high cross price elasticities in all sub-models illustrate the strong substitute or complementary effects of the price change of one commodity one quantities consumed from other commodities in the same sub-models. Therefore, structural implications from the estimated elasticities are important. The estimated own and cross price and expenditure elasticities must be analyzed during the economic reform for better understanding all economic changes affecting prices as well as consumption and expenditures. [ABSTRACT FROM AUTHOR]

Being the most populous countries of South Asia, Pakistan, India and Bangladesh represent about 37% of the world total undernourished population. In these three countries, the growing place of animal products can be observed in the diets, but the levels consumed for animal products remained very low as compared to the world mean. The consumption behaviour of animal products for three countries is presented in the study. Expenditure elasticities, own and cross compensated as well as non-compensated price elasticities of main animal products of these countries are calculated by using a LA/AIDS model applied to yearly data. Milk is income as well as price elastic in Pakistan while all other animal products in all three countries are relatively price inelastic. On the other hand, chicken and eggs are relatively income elastic. The results are compared with other authors in detail. The impact of some government policies to improve the protein and calorie intake by the actions on income and prices for the most vulnerable consumers (low income group) in these countries is also evaluated for Pakistan. [ABSTRACT FROM AUTHOR]

Being the most populous countries of South Asia, India, Pakistan and Bangladesh together represent about 37% of the world total undernourished population. In the article, there are calculated the expenditure elasticities and the own and cross non-compensated price elasticities of main vegetable products of these countries by using the LA-AIDS model. There are used the elasticity estimates to decompose the recent demand fluctuations into price effect, income effect and population effect for each country. Then the ways for the government to improve the protein and energy intake after calculating the vegetable protein and calories elasticities are compared. Wheat and rice in these countries are relatively price inelastic. For these three countries, the population development (as well as the revenue for India and Bangladesh) appears to be the most important and regular cause of the augmentation of demand for vegetable products. A combination of income and price policies may be more effective in influencing the consumption pattern. The government should aim at improving the income level of most vulnerable consumers (low income group) in these countries. [ABSTRACT FROM AUTHOR]

ABSTRACT This paper estimates the price elasticity of demand for prescription drugs using an exogenous shift in consumer co-payment caused by a reform in the Danish subsidy scheme for the general public. Using purchasing records for the entire Danish population, I show that the average price response for the most commonly used drug yields demand elasticities in the range of -0.36 to -0.5. The reform is shown to affect women, the elderly, and immigrants the most. Furthermore, this paper shows significant heterogeneity in the price response over different types of antibiotics, suggesting that the price elasticity of demand varies considerably even across relatively similar drugs. Copyright © 2012 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

The purpose of this paper is to analyse altering energy demand patterns and energy factor substitution possibilities over time in the pulp and paper industry in order to increase our understanding of suitable policy options for increasing energy efficiency. The investigation employs a flexible translog cost function and an unbalanced panel data set covering 32 pulp and paper mills over the time period 1974-2005 in Sweden. Specifically, we test whether energy factor demand patterns in the industry for the period 1974-1990 differ from those during the latter period, 1991-2005. The empirical results reveal that even though the Swedish pulp and paper industry is relatively insensitive to changes in energy factor input prices in the short run, we find evidence of significant changes over time. According to the results, the own-price sensitivity of fuel has increased since the 1970s and the 1980s, thus indicating that fuel demand has become more sensitive to short-run changes in relative prices. The estimated cross-price elasticities between electricity and fuel also support the hypothesis of increased substitutability over time. However, the null hypothesis of an equal own-price elasticity of electricity demand across the two time periods cannot be rejected. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Business Economics / Zeitschrift für Betriebswirtschaft is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper adopts the bounds testing approach to test for the validity of the cointegration or stationarity restriction embodied in five import demand model specifications for CIBS during the period 1970-2007. It identifies long-run relationships in a subset of the five models for each CIBS countries. We find that long-run income elasticities are much higher compared to earlier studies and are higher than the short-run counterparts for CIBS. In addition, contrary to the traditional wisdom, price elasticities are not significantly negative for these countries. [ABSTRACT FROM AUTHOR]

This article analyses developments in the external sector for the Euro Area and its major competitors and quantifies the dynamic contributions of the key determinants of trade to export volume behaviour. In addition to the traditional variables affecting export volumes, price and foreign demand, an unobserved component in the form of a time-varying trend enters the export equations to capture underlying non-price competitiveness. The structural modelling approach used within an error correction framework allows isolating the different sources of trade fluctuations and to better assess the contribution of each set of variables to export flows. The findings confirm that stochastic trends are present as a result of technical change and other exogenous factors driving export flows, and that a failure to account for these trends will lead to biased estimates of long-run price elasticities. [ABSTRACT FROM AUTHOR]

National postal operators offer a range of mail products to customers. It is likely that demand elasticities for these products differ across both service types and their requirements for sending mail. This paper examines time series data for addressed inland mail in the UK for three broad product categories of mail in order to identify the key drivers of the demand for letter traffic and letter substitution. For the first time, total addressed inland mail in the UK was segmented into mail content categories and preliminary estimates for the drivers of UK letter mail substitution for social, transactional and direct mail are provided. [ABSTRACT FROM AUTHOR]

Geographical Indications (GIs) are considered as upmarket products because they are based on tradition and convey information about their geographical origin. Otherwise, the limitation of the geographical areas devoted to GIs and the exclusivity they benefit on the product lead to suspicions of monopoly power. Quality and market power should however reflect a stronger attachment, making consumers less price sensitive than for standard goods. This research aims to compare theses conjectures to empirical measures concerning the French cheese market. Price elasticities are computed from a demand model on 21 products, 11 Protected Designation of Origin (PDO) products and 10 non PDOs. The results are counterintuitive, PDOs being as price elastic as or more price elastic than standard products. This finding thus challenges the widespread idea that PDOs systematically correspond to high quality. It also has important implications in terms of competition policy, showing that PDO cheeses suppliers cannot decide on price increases without suffering large reductions in demand. [ABSTRACT FROM AUTHOR]

This study presents some results for household demand for sports in Norway. The results provide a firm basis for concluding that the demand for sports is income elastic. However, because both sports events and own sports activities are time-consuming, they may be subject to Linder's disease, which is due to a shadow value of leisure increasing with income. This implies a negative bias in the income elasticity as estimated by us. The calculations suggest that the bias has become bigger in the period analyzed, that is, Linder's disease has become more serious for sports over time. [ABSTRACT FROM AUTHOR]

Since 1934, Norway has made use of toll financing of road infrastructure. The toll road system has a mixture of urban cordon toll rings, tolled fjord crossings, tolled motorways, and tolled public-private partnerships (PPPs). This paper begins by providing an overview of the various toll road projects and the planning framework and toll financing regime in Norway. Then it summarizes evidence on the demand effects of road tolls for a representative selection of projects. Finally, it discusses the socioeconomic efficiency of toll funding vis-a-vis conventional public funding. [ABSTRACT FROM AUTHOR]

There is growing interest in assessing how income influences the consumption of wildlife in poor rural areas of developing nations. The interest stems from the possibility of using income to contribute to the conservation of wildlife. Though promising, efforts have been hampered by the difficulty of obtaining accurate measures of income. We propose using human body-mass index (BMI: weight in kilograms/physical stature in m²), an indicator of short-term nutritional status, as a proxy variable for monetary income to estimate income elasticities of wildlife consumption (income elasticity: percent change in wildlife consumption/one-percent change income). The advantages of BMI over monetary income include a positive association with monetary income, ease of measurement, and absence of zero values. The assessment procedure was tested among Tsimane' Amerindians, a society of foragers and farmers in the Bolivian Amazon. The population over 15 years of age (350 men and 322 women) in 13 villages was surveyed for five consecutive quarters (August 2002-November 2003). Income elasticities of wildlife consumption using BMI as a proxy for income ranged from -0.84 to -1.20. The estimates suggest that wildlife is a food item whose consumption declines with increasing income. Estimates of income elasticity of wildlife consumption using conventional indices of monetary income are negative, but lower and indistinguishable from zero owing to classical measurement errors of monetary income. The use of BMI to estimate income elasticities of wildlife consumption is promising, but requires further validation in different settings. [ABSTRACT FROM AUTHOR]

Aim To test an implication of Becker’s rational addiction theory, namely that price changes will lead both to simultaneous consumption changes as well as lagged changes (and potentially also immediate changes if future changes in prices are anticipated). Design Time-series analysis, first of aggregate sales of distilled spirits and prices, controlled for gross national product (GNP), and secondly of deaths from delirium tremens. Setting Denmark 1911–31. Price changes were very large in the period 1916–18 due to shortages during World War I, and the Danish case can be conceived as a natural experiment. Findings No evidence for lagged price effects in the expected direction was found. On the contrary, the evidence pointed in the opposite direction. The immediate reduction in sales following rising prices are, to some degree, counteracted by an adjustment in the opposite direction the following year. The delirium tremens data confirm this pattern. Conclusion Becker’s theory is not confirmed. Several possible explanations are discussed. If the pattern observed in these data is representative of a more general mechanism, current price elasticity estimates may be too high, by ignoring lagged compensatory effects. [ABSTRACT FROM AUTHOR]

In this analysis we present some results for book demand (schoolbooks are excluded) in Norway, obtained by means of a three-goods model (books, other cultural goods and non-cultural goods) and survey data for more than 18000 households from the period 1986–1999. Various methods of estimation are used, and they provide, surprisingly unambiguous results. Our hypotheses about the price and income sensitivity of book demand are confirmed. Books turn out to be “luxury” goods. Our calculations do also suggest that they are quite price sensitive and that they are close substitutes to other cultural goods. The results for socio-demographic variables indicate that access to outlets for books, sex and age matter for book demand. Moreover, we find that single persons and households with small children, especially those with children less than 7 years, are frequent book-buyers. [ABSTRACT FROM AUTHOR]

Metaregression models are estimated to investigate sources of variation in empirical estimates of the price elasticity of irrigation water demand. Elasticity estimates are drawn from 24 studies reported in the United States since 1963, including mathematical programming, field experiments, and econometric studies. The mean price elasticity is 0.48. Long-run elasticities, those that are most useful for policy purposes, are likely larger than the mean estimate. Empirical results suggest that estimates may be more elastic if they are derived from mathematical programming or econometric studies and calculated at a higher irrigation water price. Less elastic estimates are found to be derived from models based on field experiments and in the presence of high-valued crops. [ABSTRACT FROM AUTHOR]

A 3SLS econometric model is used to estimate price elasticities of supply and demand for domestically produced and imported canned tuna in the U.S. market. In addition, a VAR model is developed to examine the relations between imports and domestically produced canned tuna. For domestically produced canned tuna, a 3SLS estimation of a structural econometric model yielded a coefficient for price elasticity of supply of 0.2 and of own-price demand of -0.3. Such price inelasticities are expected of a fishery exploited at or near its maximum yields (inelastic supply), and a consumer product widely viewed as almost a necessity in a well-stocked pantry (inelastic demand). In addition, the model yielded a cross-price elasticity of demand with respect to the price of imported canned tuna of 0.45. Additional results include an income elasticity U.S. demand for domestically packed tuna of 0.83; a cross-price elasticity with the price of bread (a complement) of -0.33, a cross-price elasticity for the price of ground meat (a substitute) of 0.30. With respect to imported canned tuna in the U.S. market, the corresponding elasticities estimated in the model are -1.3 (own-price demand), 3.5 (income elasticity),-1.2 (cross-price with the price of bread) and 2.5 (cross-price with the price of ground meat). [ABSTRACT FROM PUBLISHER]

Many empirical studies in marketing and economics have estimated brand price elasticities for specific products in markets. Their results indicate that price elasticities seem to differ across brands, product categories, retail outlets, and regions. However, there has been very little research which examines the factors associated with these observed differences. This paper focuses on the promotional price elasticities of established, major brands in stable categories. It identifies some characteristics of markets which may be associated with differences in price elasticities for frequently purchased nondurables. A cross-sectional model of the effect of these market characteristics on price elasticities is developed and estimated utilizing own price elasticity estimates for brands at twelve stores. The results indicate market characteristics such as brand market share, couponing activity, display activity and feature activity explain a substantial amount of the variation in promotional price elasticities. (Price Elasticities; Market Structure; Meta Analysis) [ABSTRACT FROM AUTHOR]

In 1983. the Washington Public Power Supply System (WPPSS) defaulted on tax-free revenue bonds issued to construct two of its five nuclear power plants. In subsequent litigation, the plaintiffs alleged that the bonds had been fraudulently issued because WPPSS and the other defendants should reasonably have known and disclosed that there was "substantial uncertainty" about the ability to meet the financial obligations created by the bonds A model using plausible values fur demand elasticities, recognized probabilities of events that would increase costs and delay construction and data used by WPPSS to construct demand forecasts for prospective bondholders suggests that such uncertainty was present at the time the bonds were issued. The values for demand elasticities and other parameters of the model were selected after a thorough review of the econometric literature on demand for electricity, beginning with the work of Fisher and Kaysen in 1962. [ABSTRACT FROM AUTHOR]

The authors develop an approach to decompose a market-level matrix of own- and cross-price elasticities to reveal potentially overlapping preference segments. The approach is grounded on the premise that markets may be represented by a parsimonious number of relatively homogeneous segments. Market-level elasticities are expressed as functions of segment weights and within-segment market shares. These relationships permit segment weights and within-segment market shares to be estimated from the market-level elasticity matrix and patterns of brand substitutability to be analyzed. The approach is illustrated with data on the grocery coffee category. [ABSTRACT FROM AUTHOR]