comparison shopping as a simultaneous move game this paper analyzes simultaneous move models of comparison shopping it shows that the equilibria in wilde schwartz 1979 can be rationalized as symmetric mixed strategies in an appropriately defined game in which information acquisition costs are endogenous it also shown that in the simultaneous move version of salop stiglitz 1977 nonexistence of equilibrium is not a problem in fact a variety of forms of equilibria emerge in that model pure strategy mixed strategy and blends of the two copyright 1992 by royal economic society

a dynamic analysis of the marketable permits approach to global warming policy a comparison of spatial and temporal flexibility abstract this paper presents a generalized dynamic model of greenhouse gas emissions trading under constraints on the volume of transactions an empirical version of the model is used to evaluate potentially cost saving flexibility mechanisms joint implementation and clean development mechanism and potentially cost adding restrictions supplementarity of the kyoto protocol the results indicate the greatest gains would stem from extending permit trading spatially among industrialized nations although sizable gains would also emanate from the inclusion of developing countries gains from intertemporal trading banking and borrowing are meager restrictions on the volume of permit purchases have by far the most costly effect when developing countries are incorporated into trading sensitivity tests with respect to differential discount rates across countries and technological change indicate the results are robust

deriving a flexible mixed demand system the normalized quadratic model this article deals with the specification of a locally flexible and theory consistent system of mixed demand functions a framework that allows for a rich set of possibilities about what is assumed as exogenous in a demand model a coherent mixed demand system is derived by using the restricted expenditure function typically studied in the related area of rationed demands the method is implemented by a new normalized quadratic nq parameterization of the restricted expenditure function the resulting nq mixed demand system is illustrated with an application to a nine good model of the italian demand for vegetables

generalized models of japanese demand for fish given a relative lack of knowledge about japanese consumer preferences for fish japanese fish demand is modeled using both marshallian ordinary and inverse demand systems each of which nests a number of competing specifications results indicate that the inverse demand systems dominate the ordinary demand systems in forecasting performance and in nonnested tests the inverse system suggests that japanese fish prices are less responsive to changes in consumption than found in previous studies

buyer collusion and efficiency of government intervention in wheat markets in northern india an asymmetric structural auctions analysis this paper uses auction theory to analyze wholesale markets for wheat in northern india this approach enables us not only to characterize the market in terms of buyer asymmetries but also to detect the existence of collusion and to quantify its impact on market prices we show that buyer asymmetries exacerbate the downward impact of collusion on prices the paper also demonstrates the use of auction theory to analyze questions of government efficiency it considers whether the government paid too much for the wheat it procured at the minimum support price and shows that for our sample it did not the paper is based on a primary survey of two wholesale markets in north india

an inverse demand system for new england groundfish welfare analysis of the transition to catch share management the welfare effects of the 2010 transition from days at sea to catch share management in the northeast u s groundfish fishery are examined by combining a model of groundfish demand with a simulation based model of supply counterfactual supply is constructed based on the days at sea system that was recalibrated to meet mandated conservation goals due to the decreases in catch that were required to meet those goals the 2010 policy undoubtedly resulted in worse outcomes for both producers and consumers compared to 2009 however the conservation equivalent days at sea system would have been far worse for both consumers and producers copyright 2013 oxford university press

price and quantity endogeneity in demand analysis evidence from directed acyclic graphs we propose to use the emerging method of directed graphs to study price quantity endogeneity issues in empirical demand analysis the approach is illustrated through the examination of u s meat consumption we find that for two major meat products beef and poultry retail prices contemporaneously caused quantities consumed thus were predetermined in contrast the quantity consumed of pork appeared to be predetermined relative to its price

imperfect information monopolistic competition and public policy introduction ever since the pioneering work of george stigler 1961 and the provocative survey by michael rothschild 1973 economists have recognized that general equilibrium models yield competitive equilibria only by making strong assumptions about the information available to market participants in response to this difficulty theorists in recent years have developed a family of search equilibrium models that presuppose homogeneity and the absence of price discrimination and which also assume that information acquisition costs are positive for at least a subset of buyers on the basis of these and other assumptions the models attempt to show how price dispersion equilibria can arise solely as a result of the strategies that firms and consumers pursue one author summarized the results if information is costly each small firm obtains market power so that the relevant market structure with imperfect information is not per ect competition but rather monopolistic competition steven salop 1976 p 240

market delineation and demand structure this paper addresses the relationship between the cointegration approach to market delineation and the more traditional approach of analyzing the demand structure among different products in terms of degree of substitutability cointegration tests for market delineation and estimation of a dynamic system of demand equations are undertaken utilizing the same data set the data set consists of three high quality seafood products in the european union the results are encouraging as the results from the two approaches are not only compatible but are also complementary in the sense that they provide more information together than they do separately

demand systems and the true subindex of the cost of living for pharmaceuticals this paper investigates the demand for prescription pharmaceuticals at the retail level we use complete demand systems to investigate elasticity for major classes of pharmaceuticals we estimate both a regular and an inverse demand system using a differential version of the rotterdam model we find that both systems yield negative and statistically significant own price elasticities the results indicate that pharmaceutical demand curves are not perfectly inelastic as some industry commentators suggest we use the results of the complete demand system and a variant of a formula developed by balk 1990 to derive a cost of living subindex for retail pharmaceuticals we find that retail pharmaceutical prices using our index rise faster than wholesale prices calculated either by the bls or by the methods developed by berndt et al 1993

monopolistic competition when price and quality are imperfectly observable consider the symmetric equilibrium of a monopolistically competitive industry in which manufacturers select price and quality to maximize expected profit and consumers maximize utility by conducting costly search among sellers using an optimal sequential search rule consumers search among sellers because i each consumer idiosyncratically evaluates each seller s quality and ii a retailing sector generates variation in the prices consumers pay consumers are handicapped in their search because their observations of firms price and quality levels are noisy an improvement in price information is represented by an increase in the precision with which consumers observe sellers prices similarly an improvement in quality information is represented by an increase in precision with which consumers observe sellers quality levels an improvement of either type of information may increase or decrease welfare the perverse case in which improved price information decreases welfare occurs when price competition among firms becomes so intense relative to quality competition that firms select severely suboptimal levels of quality a consumer searching among monopolistically competitive sellers may have difficulty accurately observing the price and quality of each seller s product he must infer from his prior beliefs and noisy observations the true values of the product s price and quality attributes we show that increasing the precision with which consumers observe an attribute of a product makes the inference problem easier and causes the demand the seller faces with respect to that attribute to become more elastic the equilibrium level of that attribute changes accordingly and since the equilibrium levels of price and quality interact the equilibrium level of the other attribute changes as well these equilibrium effects can be perverse in two ways first if the precision of quality observation is fixed then improvement in the precision of price observation can reduce welfare the chain of causation is this increasing the precision of price observation causes price to fall the resulting smaller price cost margin induces sellers to reduce quality de

differential consumer demand systems it is shown in this paper that several well known systems like the rotterdam model and the almost ideal demand system can be seen as different parametrizations of the budget share differential equation using a third parametrization a new system called the cbs system is developed and discussed special attention is given to the relative price version of the system and in particular to the special case of preference independence some estimates for the netherlands based on time series for 1953 1981 using various approaches are presented

generating enhanced fishery rents by internalizing product quality characteristics this paper demonstrates howadditional rents are generated in a fisherycharacterized by intraseasonal variation infish characteristics including size condition and composition based on anexpanded conceptual model of the optimalharvest rule fish characteristics affect preand post harvest production yields and outputprices a dynamic empirical model which uses asystem of quality characteristics and anhedonic equation illustrates the complexrelationships and management choices associatedwith internalizing seafood qualitycharacteristics in a hake fishery the modelretains the regulated open access managementsystem but controls intertemporal andintersectoral quotas production portfolios and total allowable catch results demonstratethat including revenue side effects frominternalizing fish quality can generatesignificantly greater rents and reduce therelative benefits of increased productionyields if excluded bioeconomic models canunderestimate the level of regulatory rentdissipation and overemphasize managementobjectives such as full utilization whichcould misdirect processing decisions and resultin a suboptimal resource management plan implications for data collection multidisciplinary analysis and improvements inmarine resource management are discussed

price quality and timing of moves in markets with incomplete information an experimental analysis this paper reports the results of theoretical and experimental analyses of search models of shopping behavior earlier work which dealt with markets for homogeneous goods in which sellers first determined their prices and buyers then decided upon their information acquisition shopping strategies conditional upon the distribution of prices showed that nash equilibria for these markets were good predictions of outcomes of laboratory experiments the authors extend the analysis to markets with heterogeneous goods and allow buyers and sellers to move simultaneously the results of a series of laboratory experiments indicate that the nash equilibria continue to be good predictions in these more realistic settings copyright 1992 by royal economic society

pricing of eco labels with retailer heterogeneity abstract eco labels are important features of many natural resource and food markets they certify that a product has some desirable unobserved quality typically related to a public good such as being sustainably produced two issues that have received limited attention are whether pricing varies across different eco labels that may compete with each other and to what extent different retailers charge different prices using a unique data set of salmon prices in eight different united kingdom retail chains we investigate these issues by estimating a price attribute model that includes two eco labels and one country of origin label results show substantial variation in the prices of the different eco labels and that eco label premiums vary across retail chains specifically salmon certified with the marine stewardship council msc label has a high premium in low end retail chains but no statistically significant premium in the high end chains these findings question the ability of the msc label to transmit consumer willingness to pay for public goods through the supply chain to incentivize sustainable management in contrast premiums for organic certification are similar in magnitude across retailer types in general failure to account for retailer heterogeneity will over or under estimate a label s premium

a varying coefficient approach to global flexibility in demand analysis a semiparametric approximation to reduce dimensionality issues this article derives a globally flexible demand system that can be estimated non parametrically with a specially devised temporal kernel statistical and economic results from a meat demand application underscores the usefulness of a temporal kernel in globally approximating an integrable demand system

estimating structural change with smooth transition regressions an application to meat demand this paper explores the role of structural change in systems of demand equations specifically we adapt the time varying regression framework of lin and terasvirta 1994 which in turn is related to the dynamic smooth transition models introduced by terasvirta 1994 unlike previous efforts at modeling structural change in demand systems we do not impose the nature of the change to be monotonic several non monotonic alternatives are considered an application is presented using the almost ideal inverse demand system iaids applied to u s meat demand data 1960 2004 results show the importance of modeling structural change and that moreover the best fitting model is associated with a form of symmetric non monotonic structural change

using game theory to model competition the article is an exposition of the basic concepts of noncooperative game theory and their application to advertising product and price competition

on the choice of funtional form for hedonic price functions this study examines how errors in measuring marginal attribute pric es vary with the form of the hedonic price function in simulations consumers with known utility functions bid for houses with given attributes various forms of the hedonic function are estimated using equilibrium housing prices errors in estimating marginal attribute prices are calculated by comparing each consumer s equilibrium marginal bid vector with the gradient of the hedonic function when all attributes are observed linear and quadratic box cox forms produce lowest mean percentage errors however when some attributes are unobserved or are replaced by proxies linear and linear box cox functions perform best copyright 1988 by mit press

research frontiers in the economics of climate change academic and policy debates over climate change risks and policies have stimulated economic research in a variety of fields in this article i briefly discuss eight overlapping areas of current research in which further effort is particularly warranted these areas include decision criteria for policy risk assessment and adaptation uncertainty and learning abatement cost and the innovation and diffusion of technology and the credibility of policies and international agreements further analysis in these areas not only will advance academic understanding but also will provide insights of considerable importance to policymakers

the local effects of an innovation evidence from the french fish market in this paper we investigate the effect on quality quantity and prices of an innovative fishing gear introduced for a subsample of vessels on a single wholesale fish market in france estimations are conducted using transaction data over the 2009 2011 period during which the innovation was introduced using a difference in differences approach around the discontinuity we find that for the treated the innovation has a large effect on quality 29 2 percentage points and prices 23 2 percentage points a shift in caught fish species is observed and new targeted species are fished very intensively we also quantify the treatment effect on the treated market from aggregate market data using factor models and a synthetic control approach we find a sizable effect of the innovation on market quality which is consistent with non treated vessels adapting their fishing practices to remain competitive the innovation has no effect on market quantities and prices

hedonic prices for fish tuna prices in hawaii over the past two decades the marketing of fish has recognized the importance of quality yet empirical analysis of market transactions could give us little insight into the value of different qualities of fish because market data are typically aggregated we exploit a dataset on the auction price of tuna sold in hawaii to estimate a hedonic model the model provides empirical estimates of price increments due to species quality of the fish such as size or fat content method of handling and market conditions the empirical results are also used to estimate price flexibilities for landings in hawaii

aggregation without separability composite commodity theorems in quantity space abstract in this paper we provide an obvious extension of the composite commodity theorems to the case of inverse demands where quantities and not prices can be used for aggregation first the hicks leontief commodity theorem is extended to the quantity space and then its generalised stochastic version is presented

uncertainty and shopping behaviour an experimental analysis this paper reports experimental tests of three search equilibrium models these models which differ only in the search strategies available to the buyers have qualitatively different predictions that is equilibria price distributions single price equilibria at the competitive price and at the monopoly price and two price equilibria the experimental outcomes generally were consistent with the models predictions this suggests that debate on the utility of this class of models should shift to the realism of the models assumptions rather than focus on their ability to characterize market outcomes also since the basic models have been validated the project of analyzing experimentally the results of relaxing some of their assumptions seems worthwhile

the inverse almost ideal demand system abstract a new demand system related to the almost ideal demand system aids of deaton and muellbauer is developed and illustrated this inverse aids iaids retains all of the desirable theoretical properties of the aids model with the exception of consistent aggregation an empirical issue is whether a linear approximation will work as well for the iaids as it has for the aids model since quantities are not as highly correlated as prices an application to u s meat demand demonstrates that the linear approximation of the iaids is excellent which enhanced the ease and range of application

flexible specification of mixed demand systems common flexible functional forms are not very useful for modeling mixed demand systems because derivation of mixed demands requires closed forms for both direct and indirect utility functions in this paper we study the alternative of using a direct approximation to mixed demands we develop a new approach to slutsky relations for mixed demand functions allowing formulation of a rotterdam mixed demand model the resulting mixed demand system is illustrated with an application to meat demand in canada

causality in demand a co integrated demand system for trout in germany this article focuses on causality in demand a methodology where causality is imposed and tested within an empirical co integrated demand model not prespecified is suggested the methodology allows different causality of different products within the same demand system the methodology is applied to fish demand on the german market for farmed trout and substitutes it is found that supply sources i e aquaculture and fishery are not the only determinant of causality storing tightness of management and aggregation level of integrated markets might also be important the methodological implication is that more explicit focus on causality in demand analyses provides improved information the results suggest that frozen trout forms part of a large european whitefish market where prices of fresh trout are formed on a relatively separate market redfish is a substitute on both markets the policy implication is that increased production of trout causes a downward pressure on fresh trout prices but froz

inverse demand systems and choice of functional form abstract barten empirical economics 18 1993 129 recently advocated estimation of a synthetic demand system that mechanically nests four other popular differential demand models this paper follows a similar strategy but in the context of four inverse share equation demand systems the inverse translog demand system itlds the inverse almost ideal demand system iaids the inverse lewbel demand system ilds and the inverse non separable linear expenditure system inles each of these specifications is artificially nested in a hybrid inverse demand system hids an empirical application to three categories of quarterly u s meat demand data over the period 1961 1996 indicates the hids is a preferred specification

trading carbon tradable offsets under kyoto s clean development mechanism the economic advantages to buyers and sellers of using call options abstract under the kyoto protocol s clean development mechanism developed countries may purchase or trade for emission reduction units or greenhouse gas ghg offsets originating either from excess quota allocations or from developing countries projects selling emission reduction units before a market has actually developed presents pricing problems for both sellers and buyers in the case of sequestered carbon and in the example of a costa rican project it may be economically beneficial to both buyer and seller alike for the buyer to purchase the right but not the obligation to purchase a carbon tradable offset cto it is shown by valuing purchases and sales of cto options that advantages from such an instrument are possible to both seller and buyer at least until a true market in ghg offset trading develops

sealed bid auction of netherlands mussels statistical analysis this article presents an econometric analysis of the many data on the sealed bid auction that sells mussels in yerseke town the netherlands the goals of this analysis are obtaining insight into the important factors that determine the price of these mussels and quantifying the performance of an individual purchase manager besides a case study the article is a general study on the role of auctions in supply chains and on hedonic price factors

instrument choice in a fishery abstract this paper considers the choice of regulatory instruments in a fishery fishing captains consumers and input suppliers each attempt to influence the regulator s choice of instruments the regulator chooses among instruments such as input restrictions entry restrictions or individual transferable quotas itqs regulatory instruments that result in zero fishery rents can only occur if the regulator places an extraordinary weight on the welfare of input suppliers relative to fishing captains and consumers indeed heterogeneity of fishing captains is neither necessary nor sufficient to obtain regulations that fail to generate fishery rents

price formation of fish an application of an inverse demand system inverse demand systems explain price variations as functions of quantity variations they have properties analogous to those of regular demand systems there are very few examples of their empirical application in part this is due to lack of data for which price is the decision variable and the quantity given the case of fish landed at belgian sea ports appears to suit an inverse demand system well a rotterdam variant of such a system in estimated allais interaction intensities have been derived and show a reasonable pattern

estimating market demand for fresh yam characteristics using contingent valuation implications for crop breeding and production choices this study uses the box cox bc transformations to examine nonlinearity in price modeling and compare results from several functional specifications in hedonic price analysis of yam in togo based on a sample of 6 402 observations on price and produce characteristics generated through a market experiment it is found that the bc quadratic asymmetric specification is the most suitable function several characteristics are valued more than others and prices vary across species time and market sites some residual symptoms of pest and disease damages on yam tubers reduce their market values tuber weight exhibits a diminishing marginal value and price per kilogram decreases above an optimum size therefore producers do not derive additional reward from extra large tubers we conclude that to effectively access and benefit from urban markets producers should focus on small size low weight and conical shaped tubers which are easy to process and meet the esthetic qualities preferred by urban consumers the implications for research on improved variety development to reduce poverty and for crop and resource management practices are drawn

fair trades by trade fairs information providing institutions under monopolistic competition it is a standard result of search theory that the optimal reservation supply price e g wage is negatively correlated to search costs this paper applies the inverse relationship between demand prices and limit prices to the analysis of an hitherto unexplored topic trade fairs trade fairs bloomed during the middle ages and early trade based capitalism and survived for centuries in last decades their growth became sustained they attract every year hundreds of thousands of exhibitors and tens of millions of visitors

global ex vessel fish price database revisited a new approach for estimating missing prices the global ex vessel fish price database ex vessel db reported in sumaila et al j bioecon 9 1 39 51 2007 was the first comprehensive database that presents average annual ex vessel prices for all commercially exploited marine fish stocks by nationality of the fishing fleet it contained over 30 000 reported price items covering the period from 1950 to the present and supplemented missing prices with estimates based on prices from a different year species group or fleet nationality this paper describes a revised missing price estimation approach focused on the computation of annual average international prices for each species group adjusted to domestic prices using the real exchange rate based on national purchasing power parity key advantages of the new approach are that it allows a larger number of reported prices to be used in the price estimation and accounts for relative price level differences that exist between countries our new approach should improve the estimates in regions where reported prices are scarce or non existent by linking domestic prices to the trends in international prices our analysis based on the revised ex vessel price estimates in real 2005 usd shows that the global marine fisheries landings have generated total value of usd 4 2 trillion since 1950 including usd 100 billion in 2005

affect or information labeling policy and consumer valuation of rbst free and organic characteristics of milk abstract using a labeling policy framework we answer the question of whether attitude has an impact on consumers valuation of rbst free and organic characteristics of milk we utilize 2 years of consumer survey data and a hedonic model to estimate marginal effects of attitude on consumer valuation of rbst free and organic milk findings indicate that in 2001 milk value was impacted by attitude regardless of whether attitude was measured using an opinion based or behavioral construct in 2004 the contribution of attitude to value was insignificant implications for labeling policy are discussed

spatial competition with changing market institutions summary competition across space can be fundamentally altered by changes in market institutions we propose a framework that integrates market altering policy changes in the spatial analysis of competitive behavior and incorporates endogenous breaks in explanatory variables for spatial panel datasets this paper fills a gap in the literature between work focusing on spatial price responsiveness of agents and work on changes in market regulations that affect competition we apply the framework to an important current fishery management policy to explore how a change from aggregate to individual fishing quotas affects the spatial price responsiveness of fish processors copyright 2012 john wiley sons ltd

wine prices and quality ratings a meta regression analysis this article examines the empirical support for the hypothesized hedonic theoretical relation between the price of wine and its quality the examination considers over 180 hedonic wine price models developed over 20 years covering many countries the research identifies that the relation between the price of wine and its sensory quality rating is a moderate partial correlation of 0 30 this correlation exists despite the lack of information held by consumers about a wine s quality and the inconsistency of expert tasters when evaluating wines the results identify a moderate price quality correlation which suggests the existence of strategic buying opportunities for better informed consumers strategic price setting possibilities may also exist for wine producers given the incomplete quality information held by consumers the results from the meta regression analysis point to the absence of any publication bias and attribute the observed asymmetry in estimates to study heterogeneity the analysis suggests the observed heterogeneity is explained by the importance of a wine s reputation the use of the 100 point quality rating scale the analysis of a single wine variety style and the employed functional form the most important implication from the analysis is the relative importance of a wine s reputation over its sensory quality inferring that producers need to sustain the sensory quality of a wine over time to extract appropriate returns the reputation of the wine producer is found not to influence the strength of the price quality relationship this finding does not contradict the importance of wine producer reputation in directly influencing prices

inverse demand systems and welfare measurement in quantity space most studies of welfare or cost benefit analyses are concerned with the welfare effects of price changes 11 19 27 33 50 there are however many situations in which policy options are directly related to quantity changes the welfare effects of price changes are analyzed with the traditional demand system in which commodity quantities are determined as functions of their prices the welfare effects of quantity changes on the other hand are associated with the inverse demand system in which commodity prices are dependent on their quantities in conventional welfare analysis of price change prices are taken to be exogenous or predetermined while quantities are endogenous in contrast in welfare analysis of quantity changes quantities are exogenous while prices are endogenous price based or dual welfare measures are relevant when there are well functioning competitive markets and quantities are fully adjusted to changes in prices on the other hand quantity based or primal welfare measures are useful in situations where there are constraints on commodity quantities or when transaction costs impede consumers from fully adjusting to changes in prices the choice between priceand quantity based welfare measures is empirical and proper measurement of welfare effects requires the knowledge as to which variable price or quantity is the exogenous one for individual consumers it may be reasonable to assume that the supply of commodities is perfectly elastic and therefore prices can be taken as exogenous but this assumption may not be tenable for consumers in the aggregate or if highly aggregated economy wide data are used to estimate demand relations at the aggregate level quantities are more properly viewed as exogenous than are prices although individual consumers make their consumption decisions based on given prices the quantities of commodities are predetermined by production at the market level and prices must adjust so that the available quantities are consumed 28 1 2

efficient estimation of hedonic inverse input demand systems this article is concerned with efficient estimation of characteristics demand we derive and estimate an inverse input demand system for quality characteristics by using 172 946 observations over 881 trading days in the icelandic fish auctions an improved estimation method based on an expanded random coefficient model is suggested as an alternative to the currently used two stage method of brown and rosen the estimates demonstrate the improved efficiency of the suggested method a number of empirical results emerge including a general increase in the demand for quality the purpose of hedonic price analysis is to determine how the price of a unit of a commodity varies with its characteristics that is to estimate the hedonic price function some recent examples of the estimation of hedonic price functions are nerlove combris lecocq and visser and mcconnell and strand however theory predicts that shifts in supply or demand affect the implicit price relationships between the overall price of the good and its individual characteristics and so we need to estimate the underlying demand and supply functions for the characteristics rosen developed a two stage method for analyzing hedonic markets in the first stage of this method the hedonic price function is estimated and in the second stage a system of demand and supply functions for characteristics is estimated using the shadow prices of the characteristics from the first stage as variables brown and rosen showed that this procedure could yield estimates of demand and supply functions that are mere transformations of the coefficients in the hedonic function they suggested the currently used two stage method using data from multiple markets this method utilizes the within market variation to iden

characteristics and hedonic pricing of differentiated beef demands we estimate a cbs system model of u s derived demand for meat we use this model 1 to examine relationships between three quality categories of beef and three other meats and 2 to simulate how taste shifts have affected demands for meats over time we extend previous studies by disaggregating wholesale beef production into three quality categories 1 usda choice grade or higher 2 usda select or lower and 3 cow and bull beef innovative features of our empirical model include a breakout of table cuts into choice and select and the use of a hedonic characterization of the two breakouts to value choice ness and beef ness our model demonstrates important shifts in separate demands for choice and select beef we show that separately the demand for choice grade beef declined in the 1980s and 1990s and the demand for select beef increased a departure from the relatively stable demand characterizations of more aggregated measures of combined choice and select beef jel classification q11 q13

preference variable impacts in direct and inverse differential demand systems preference variables are included in the inverse rotterdam model based on the tintner ichimura basmann relationship linking preference effects on quantities demanded to price effects and preference effects on marginal utilities restrictions are placed on the effects of the preference variables on the marginal utilities resulting in reductions in the parameter space for the preference variables in both direct and inverse demand systems the model is used to analyze impacts of product quality on fresh citrus demand

the economics of climate change mitigation in developing countries abstract this paper discusses methodological lessons and empirical results of climate change mitigation assessment for developing countries with a special emphasis on economic studies national study results are discussed in relation to expected general international development trends in greenhouse gas emissions it is concluded that greenhouse gas emissions from developing countries certainly will increase in the future due to economic development needs there is however a large and relatively cheap potential for emission reductions connected to efficiency improvements in industrial production and general energy efficiency improvements in the countries the implementation of greenhouse gas mitigation strategies is interrelated with general national economic development policies the macroeconomic impact of implementing climate change mitigation strategies is assessed on the basis of two case studies for zimbabwe and venezuela and it is concluded that project implementation and economic welfare improvement in some cases can be achieved simultaneously the methodological basis for macroeconomic assessment and for the establishment of baseline scenarios are critically discussed in relation to the specific planning context of developing countries and recommendations are given on research requirements

a precursor to muth tinbergen s 1932 model of rational expectations this paper describes a model published in 1932 in which explicitly rational expectations are used to study a dynamic problem of intertemporal inventory allocation the model is very similar to muth 1961 except that the stochastic process in the latter is serially correlated whereas in tinbergen s model the disturbances are serially uncorrelated hence tinbergen was able to solve a rational expectations model thirty years before muth s much more well known contribution copyright 1991 by royal economic society