progress along the path evolving issues in the measurement of genuine saving more than 10 years since a practical linkage between sustainable development and a measure of national wealth expanded to include natural and environmental resources was first posited the empirical estimation of adjusted net savings dubbed genuine saving has evolved considerably in this paper we take stock of both progress achieved and the challenges that remain we begin by recalling the key points made in pearce and atkinson 1993 ecol econ 8 103 which presented the first cross country estimates of savings rates adjusted to reflect depletion and degradation of the environment we then briefly summarise the evolution of the theoretical argument linking savings and sustainability however the main focus of this paper is an aspect that concerned david pearce greatly namely the evolution of the measurement of genuine savings we identify and consider the empirical evidence with regard to two particular measurement issues the valuation of exhaustible resources and environmental degradation common to the both issues are concerns about measuring changes in national wealth in real world economies

valuing english primary schools this paper provides the first empirical evidence for the uk on the effect of primary school performance on property prices we find that on average a one percentage point increase in the neighbourhood proportion of children reaching the government specified target grade pushes up neighbourhood property prices by 0 67 at 2000 property prices we calculate the social valuation of a sustained 1 improvement in primary school performance to be up to 90 per child per year our instrumental variable and semi parametric approach avoids the problems of school quality endogeneity and omitted neighbourhood variables that occur in typical property value models

an alternative to the standard spatial econometric approaches in hedonic house price models omitted misspecified or mismeasured spatially varying characteristics are a cause for concern in hedonic house price models spatial econometrics or spatial fixed effects have become popular ways of addressing these concerns we discuss the limitations of standard spatial approaches to hedonic modeling and demonstrate the spatial generalized additive model as an alternative parameter estimates for several spatially varying regressors are shown to be sensitive to the scale of the fixed effects and bandwidth dimension used to control for omitted variables this sensitivity reflects the uncertainty associated with the estimates when the appropriate spatial scale of the controls is unknown

engel functions panel data and latent variables a system of consumer expenditure functions is estimated from norwegian household budget data specific features of the approach are i panel data from individual households are used which offer far richer opportunities for identification estimation and testing than cross section data ii measurement errors are carefully modelled total consumption expenditure is modelled as a latent variable purchase expenditures on different goods and two income measures are used as indicators of this basic latent variable the usual assumption of no measurement error in total expenditure is clearly rejected iii the distribution of latent total expenditure across households and its evolution over time is estimated and important properties tested iv the distribution of individual differences in preferences represented by individual time invariant latent variables are modelled estimated and tested v we test the hypothesis that preferences are uncorrelated with total consumption expenditure which is basic to virtually all cross section studies of consumer demand functions

the amenity cost of road noise this article reports a complete two stage hedonic analysis for road noise for the estimation of the hedonic price function i develop a spatial research design which simultaneously reduces the risk of omitted variable bias and the risk of measurement error in the noise measure the preference parameters are identified following the approach developed in bajari and benkard 2005 by using a simple functional form for utility preferences are very heterogeneous and observable demographic characteristics explain 30 percent of the variation in taste for quiet results are used to discuss willingness to pay for noise reductions from two policy measures

welfare measurement for environmental improvements using the hedonic model the case of nonparametric marginal prices abstract research in environmental and natural resource economics frequently requires the use of hedonic models because of the differentiated products involved this is true for studies of the relationship between environmental quality and property values or wages or between the characteristics of a recreation site and the demand for its services an obvious use of such studies is in estimating willingness to pay for improvements with differentiated products there are usually nonlinear hedonic price schedules and thus nonlinear budget constraints this makes welfare analysis difficult because standard duality results no longer hold this paper develops a technique for estimating a psuedo demand system that can be used to derive exact measures of consumer welfare change similar techniques are developed for producers with a psuedo profit function that can be converted to an exact measure of the change in quasi rents or rents the paper also shows that the distance function can be used to develop an ex ante measure of welfare change

a measure of income inequality in the u s for the years 1952 1980 based on the beta distribution of the second kind abstract this paper presents gini measures of inequality for the u s size distribution of total income for the years 1952 1980 a beta distribution of the second kind is used as the hypothetical statistical distribution to approximate actual empirical income data we then examine the fit of the distribution and conclude that the beta distribution provides a good approximation to the actual empirical income data

beyond implicit prices recovering theoretically consistent and transferable values for noise avoidance from a hedonic property price model using a two stage hedonic pricing methodology we estimate a system of structural demand equations for different sources of transport related noise in the first stage we identify market segments using model based clustering techniques and estimate separate hedonic price functions hpfs for each segment in so doing we show how a semiparametric spatial smoothing estimator outperforms other standard specifications of the hpf in the second stage we control for non linearity of the budget constraint and identify demand relationships using techniques that account for problems of endogeneity and censoring of the dependent variable our estimated demand functions provide welfare estimates for peace and quiet that we believe to be the first derived from property market data in a theoretically consistent manner

comparative statics for utility maximization models with nonlinear budget constraints this paper investigates the properties of demand functions generated by nonlinear budget constraints and relates them to those of demand functions generated by linear budget constraints the analysis shows that the properties of nonlinear and linear demand functions in some respects are similar but in other respects differ substantially the study gives conditions under which properties of the linear demand functions carry over to the nonlinear ones the implications for the nonlinear demand functions of various separability assumptions are also studied copyright 1989 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

willingness to pay for car safety evidence from sweden this study estimates a marginal willingness to pay wtp function for a road mortality risk reduction observed marginal wtp from the swedish car market is used and found to be positively correlated with the baseline risk of the cars no statistically significant relationships between examined owner attributes e g wealth and background risk and marginal wtp are found when comparing the estimated monetary value of a non marginal risk reduction derived from the integral of the marginal wtp function with an estimate based on marginal wtp we find in line with expectations that the difference between the estimates is negligible for smaller risk reductions and small 4 10 also for relatively large risk reductions

comparing tax and tax reallocation payments in financing rail noise abatement programmes results from a stated choice valuation study in italy the paper examines the use of stated choice experiments sc to assess the economic value of alternative rail noise reduction interventions on the brennero railway in italy the paper formally tests the econometric robustness of the sc estimates under three payment regimes a a regional tax where consumers must trade off welfare gains due to noise reduction for part of their income b a transport tax reallocation scheme where consumers must trade off a part of the tax payments that are currently spent on the public transport sector and c an administration tax reallocation scheme where consumers must trade off a part of the tax payments that are currently spent on the administration sector the test results are varied on the one hand the sc estimates are found to be statistically different for the tax reallocation and the tax introduction regimes this confirms previous valuation research results and thus reiterates the hypothesis that states the inequality between marginal values of private income and public money on the other hand the sc estimates are not found to be statistically different for the two proposed tax reallocation regimes suggesting that in the case study investigated here the marginal value of public money does not depend upon the budget source

a household s burden the embodied resource use of household equipment in germany the paper describes patterns of resource use related to german households equipment using cluster analysis and material flow accounting data on socio demographic characteristics and expenditures on fuel electricity and household equipment allow for a differentiation of seven different household types the corresponding resource use expressed in material footprint per person and year is calculated based on cradle to gate material flows of average household goods and the related household energy use our results show that patterns of resource use are mainly driven by the use of fuel and electricity and the ownership of cars the quantified material footprints correlate to social status and are also linked to city size age and household size affluent established and or younger families living in rural areas typically show the highest amounts of durables and expenditures on non durables thus exhibiting the highest use of natural resources

accounting for heterogeneity of public lands in hedonic property models open space lands national forests in particular are usually treated as homogeneous entities in hedonic price studies failure to account for the heterogeneous nature of public open spaces may result in inappropriate inferences about the benefits of proximate location to such lands in this study the hedonic price method is used to estimate the marginal values for proximity to the pike national forest the results indicate that specifying the forest as homogeneous overstates the benefits for homes within two miles relative to specifying the forest based on land use characteristics because the significant negative effect from noise intensive activities is omitted jel h41 q51

valuing local environmental amenity with discrete choice experiments spatial scope sensitivity and heterogeneous marginal utility of income using discrete choice experiments we examine preferences for the spatial provision of local environmental improvements in the context of regeneration policies amenities we consider are improvements to areas of open space recreation facilities and other public spaces street cleanliness restoration of derelict properties and the provision of paths dedicated to cycling and walking we include the spatial scope of the policy as an attribute making the trade off between environmental amenity and its spatial provision explicit we employ a novel estimator for average willingness to pay wtp for mixed logit models with a random cost coefficient which is robust to the presence of price insensitive respondents and performs well relative to mixed logit estimation in wtp space we find that the spatial scope of the policy affects both the intensity and heterogeneity of preferences and that these effects are of statistical and economic significance

the social welfare implications decomposability and geometry of the sen family of poverty indices in this paper we propose a unified framework for the sen indices of poverty intensity that shows an explicit connection between the indices and the common underlying social evaluation function we also identify the common multiplicative decomposition of the indices that allows simple and similar geometric interpretations and easy numerical computation jel classification c000 h000 o150 implications en termes de bien etre collectif decomposabilite et geometrie de la famille d indices de pauvretea la sen dans ce memoire les auteurs proposent un cadre d analyse integre des indices d intensite de pauvretea la sen qui souligne la relation explicite entre ces indices et la fonction sociale d evaluation commune qui les soustend les auteurs identifient aussi la decomposition multiplicative commune de ces indices qui permet d en donner des interpretations geometriques simples et idoines et de faire des calculs numeriques faciles

estimating the demand for protecting freshwater lakes from eutrophication in any discussion of the valuation of public goods particularly environmental amenities contingent valuation travel cost and hedonics are commonly cited as methods for estimating hicksian or marshallian welfare freeman while contingent valuation and travel cost are widely employed we know of very few applications where hedonic demand functions have been estimated palmquist 1984 and parsons estimated second stage hedonic demands for characteristics of housing units both used the approach of estimating separate hedonic price functions for different real estate markets to identify demand parameters for housing characteristics the research reported here is the first to use separate real estate markets to identify demand parameters for an environmental amenity the specific application is water clarity in selected lakes in maine reduced water

the value of agricultural water rights in agricultural properties in the path of development article i nfo article history this paper estimates the value of water rights in a rapidly urbanizing semi arid area phoenix arizona to do this we use hedonic pricing to explore the impact of water rights on property values in 151 agricultural land transactions that occurred between 2001 and 2005 we test two main hypotheses 1 that the marginal will ingness to pay for water rights is higher in more developed urbanizing areas than in less developed rural areas and 2 that the marginal willingness to pay for water rights in urban areas is increasing in the value of developed land we find that the marginal willingness to pay for water rights is highest among properties in urbanized or urbanizing areas where a significant proportion of the land has already been developed additionally we find that the marginal willingness to pay for agricultural water rights is greatest in cities where developed land is most valuable

poverty and income distribution during adjustment issues and evidence from the oecd project drawing lessons from country studies the authors examine the effects of adjustment policies on the distribution of income in chile cote d ivoire ecuador indonesia malaysia and morocco after analyzing the issues that must be confronted in designing adjustment programs with a focus on poverty they synthesize the main conclusions of the different country studies with simulation exercises they explore the effects of the design of the adjustment packages on poverty and on the sustainability of the measures undertaken in these countries these exercises show considerable diversity in the evolution of income distribution during adjustment they also expose the fatal flaws of narrowly designed adjustment programs adjustment programs whether focused on efficiency or on welfare will fail when they do not recognize the interdependence of the three criteria of efficiency welfare and political feasibility adjustment programs must be carefully packaged to fit country circumstances taking into account both the political and economic environments

panterritorial versus regional pricing for maize in zimbabwe abstract this paper presents a spatial equilibrium model of zimbabwe s maize market designed to compare the current system of panterritorial prices with the pareto optimal pattern of regional price variation that would occur in a competitive market the model shows that under baseline 1988 conditions competitive pricing would raise aggregate welfare by about us 14 million annually about 4 of producer plus consumer surplus while improving income distribution by favoring the majority of smallholder farmers in southern deficit areas and urban consumers in northern surplus areas thus the model suggests that liberalization could improve both efficiency and equity administered regional prices in a controlled market could yield some of these gains to the extent that production and processing were brought closer to consumers

identifying hedonic models economic models for hedonic markets characterize the pricing of bundles of attributes and the demand and supply of these attributes under different assumptions about market structure preferences and technology see jan tinbergen 1956 sherwin rosen 1974 and dennis epple 1987 for contributions to this literature while the theory is well formulated and delivers some elegant analytical results the empirical content of the model is under debate it is widely believed that hedonic models fit in a single market are fundamentally underidentified and that any empirical content obtained from them is a consequence of arbitrary functional form assumptions the problem of identification in hedonic models is a prototype for the identification problem in a variety of economic models in which agents sort on unobservable to the economist characteristics models of monopoly pricing michael mussa and sherwin rosen 1978 robert wilson 1993 and models for taxes and labor supply james heckman 1974 sorting is an essential feature of econometric models of social interactions see william brock and steven durlauf 2001 in this paper we address the sorting problem in hedonic models nesheim 2001 extends this analysis to a model with peer effects in this paper we note that commonly used linearization strategies made to simplify estimation and justify the application of instrumental variables methods produce identification problems the hedonic model is generically nonlinear it is the linearization of a fundamentally nonlinear model that produces the form of the identification problem that dominates discussion in the applied literature linearity is an arbitrary and misleading functional form when applied to empirical hedonic models our research establishes that even though sorting equilibrium in a single market implies no exclusion restrictions the hedonic model is generically nonparametrically identified instrumental variables and transformation model methods identify economically relevant parameters even 1 without exclusion restrictions multimarket data widely viewed as the most powerful source of identification achieves this result only under implausible assumptions about why hedonic functions vary across markets

how relevant are specifications of behavioral relations on the micro level for modelling the time path of population aggregates abstract this paper shows that the specification of behavioural relations at the individual level does not play a dominant role in determining the sort of relation among aggregates discussed more important are certain invariant features of the distribution of household characteristics and attributes these invariants allow one to derive an aggregate consumption relation it is shown that some of the coefficients of a first order approximation of that relation describing the effect of changing income dispersion the effect of the growth of mean income and the effect of changes in the distribution of household attributes can be estimated from cross section data without any need to specify a model of micro behaviour

hedonic price indexes for residential housing a survey evaluation and taxonomy every house is different it is important that house price indexes take account of these quality differences hedonic methods which express house prices as a function of a vector of characteristics such as number of bedrooms and bathrooms land area and location are particularly useful for this purpose i consider here some developments in the hedonic methodology as it is applied in a housing context that have occurred in the last three decades a number of hedonic house price indexes are now available however it is often difficult to see how these indexes relate to each other for this reason i attempt to impose some structure on the literature by developing a taxonomy of hedonic indexes and then show how existing indexes fit into this taxonomy also discussed are some promising areas for future research in the hedonic field in particular greater use needs to be made of spatial econometric and nonparametric methods to exploit the increased availability of geospatial data the main criticisms of the hedonic approach are evaluated and compared with those of the repeat sales and stratified median methods the overall conclusion is that the advantages of the hedonic approach outweigh its disadvantages

poverty and inequality under income and price dispersions many policies simultaneously affect the distribution of prices and incomes in the economy moreover a bias may occur when there is a stochastic relationship between prices and incomes and this relationship is being ignored it is therefore important to dispose of an analytical framework for welfare analysis that could account for changes in this joint distribution how can the joint influences of price and income distributions on poverty and inequality indicators be analysed we offer a method to deal with this problem by using parametric formulae of poverty and inequality measures we propose statistical indicators for the levels variabilities and a statistical link of price indices and nominal living standards these indicators are consistent with an approximation of the problem based on a bivariate lognormal distribution of price indices and nominal living standards our analysis provides hints about the social welfare impact of economic shocks or policies affecting levels variabilities and correlation of prices and incomes intuitive insights are obtained while using arithmetic means and variances instead does not lead to illuminating results the role of price and income variabilities for poverty and inequality is more complex than generally expected with the possibility of several variation regimes empirical investigation of these statistics would guide social policies

revisiting the sen poverty index a modification of the official sen poverty index yields an index which is not only continous in individual incomes and consistent with the transfer axiom but also admits a geometric interpretation in terms of the area beneath a graph called the inverse generalized lorenz curve for normalized poverty gaps by jenkins and lambert 1993 or the poverty gap profile by shorrocks 1994

spatial integration transport costs and the response of local prices to policy changes in ghana abstract this paper investigates the respective roles of spatial integration and transport costs in explaining price changes in ghana we introduce a model of price formation and market integration that incorporates the price transmission process between local and central markets and also captures the implications for volatility of local prices we explore the implications of the model for the time path of price adjustments as determined directly and indirectly through the marketing sector we show that the price adjustment process in a local market is determined by the degree of interdependence between that market and the central market in which a price shock originates and estimate the intertemporal and interspatial dynamics of the price adjustment process using data from wholesale maize markets in ghana we find that reductions in local prices and local price variance following the introduction of economic reforms in 1983 can be traced to both local and central market forces but that differences in the degree of market integration have important implications for long run changes in transport costs and the evolution of prices in outlying markets

airport expansions and property values the case of chicago o hare airport abstract the paper adds to the empirical literature by providing up to date estimates of the effect of airport noise on property values around one of the world s busiest airports chicago o hare the results indicate that home values were about 9 lower within a 65 db noise contour band of o hare in 1997 opponents of airport expansions argue that increased noise will reduce property values and lower tax bases the results of this paper suggest that aircraft are becoming so much quieter that the airport can be expanded without causing a drop in local property values or tax bases estimates suggest that house prices may rise by as much as 284 6 million in the densely populated area around o hare after a new runway is added to the airport

price changes maintenance and the rate of depreciation this study estimates rates of deterioration and depreciation for a sample of used privately owned single and twin engine aircraft over the period 1971 1991 the adoption of a strict liability stan

impact of household consumption on co2 emissions danish household consumption increased by 58 over the period 1966 1992 while co2 emissions only increased by 7 using decomposition analysis we investigated the global co2 impact of danish household consumption from 1966 to 1992 our conclusion is that overall growth in private consumption but not changes in the composition of consumption is the key to understanding the increase in co2 emissions however the effect of growth in private consumption has been partly offset by substantial energy conservation in the energy supply and manufacturing sectors

institutionalisation of sustainable consumption patterns based on shared use the product service system pss concept has been proposed as a way of dealing with unsustainable patterns of consumption in the business to consumer b2c domain existing alternatives to traditional consumption based on ownership such as car sharing communal washing centres and tool sharing schemes indicate that more sustainable patterns of consumption may be found for other household functions however the low profile of these examples in society and on the market calls for a query into factors that may facilitate or hinder broader acceptance of more sustainable alternatives in this study the aforementioned examples are analysed from institutional and product service system perspectives and it is suggested that the embodiment of alternative consumption patterns into every day routines depends on institutional arrangements regulatory and normative on how the product service systems are designed and applied in practice and oil the socio cultural background of the society the systems are implemented in c 2004 elsevier b v all rights reserved less

energy requirements of sydney households supporting the lifestyles of the populations of modern cities requires vast quantities of natural resources and leads to environmental stresses such as air and water pollution research into the metabolism of cities therefore aims at understanding the physical flows into within and out of cities with a view to reducing the use of resources and the environmental impacts one important physical indicator is energy use most studies on cities only consider direct or end user energy consumption since the function of cities is to serve the lives of their residents indirect energy use in cities or energy embodied in the consumption of goods and services by its residents can be regarded as being as important as direct energy use however physical models of cities are extremely complex and have difficulty in dealing with boundary issues and hence the indirect resource requirements in this paper we use input output analysis and detailed household expenditure data to yield comprehensive energy use breakdowns for the 14 statistical subdivisions of sydney multivariate regression and structural path analysis spa are used to interpret the results clear correlations can be drawn between energy use and income household size age and degree of urbanity the structural path analysis is used to demonstrate how significant differences in lifestyles between inner and outer areas of sydney leads to different energy use characteristics this final consumption based approach to analysing the energy requirements for households has important implications for measures aimed at reducing energy use which tend to only consider direct energy use d 2004 elsevier b v all rights reserved

how property markets determine welfare outcomes an equilibrium sorting model analysis of local environmental interventions this paper examines the pivotal role played by property markets in determining the magnitude and distribution of welfare changes resulting from localised environmental change we address that issue using an equilibrium sorting model esm calibrated by way of example to the circumstances of a road infrastructure project in the english town of polegate previous esm research has tended to assume that all households rent property from a fixed property stock the narrative that arises from those models concerns environmental gentrification wherein access to environmentally improved locations is appropriated by the relatively wealthy through their ability to out compete the less wealthy in the rental property market our research shows that to be only part of a much more complex story we develop a model that extends the sophistication with which esms replicate property market dynamics allowing for households to choose whether to rent or purchase their home and introducing greater realism into housing supply responses to changing market conditions our research shows that property markets redistribute welfare gains across the population in complex ways in which tenure choice and housing supply constraints play central roles

exchange rate fiscal and agricultural policies in africa does adjustment hurt the poor abstract trade exchange rate fiscal and agricultural sector policy reforms are the pillars of structural adjustment programs in africa results indicate that trade and exchange rate reforms are associated with a large decline in economic rents and a shift in relative prices that favor the rural and urban poor fiscal reforms have not brought about draconian belt tightening measures although the incidence of public spending particularly in the social sectors and in terms of public sector employment remains far from progressive reduction of export crop taxation contributes to higher incomes for the poor and domestic food crop liberalization has not led to increases in purchase prices of staple commodities for most low income households

agricultural marketing and pricing reform a review of experience abstract south africa like many other countries has in the past pursued a highly interventionist policy in agricultural marketing and pricing but has recently embarked on a process of at least partial liberalization the paper reviews the reasons for nature of and impact of marketing reform in sub saharan africa and elsewhere it concludes that the results of reform have in general been positive although implementation has been more difficult and time consuming than originally expected in part because of interest group politics and in part because of its inherent complexity the paper highlights some issues of particular relevance to south africa s current political and economic transition

emissions in a decarbonised economy global lessons from a carbon footprint analysis of iceland abstract decarbonisation of stationary energy supply particularly electricity grids is the current focus of climate change mitigation policy however studies have suggested that this narrow policy focus is insufficient to achieve meaningful global emissions reductions using iceland as a case study this paper demonstrates that significant emissions arise from transport and imported products which are often not fully captured in territorial ghg inventories this results in high greenhouse gas emissions per capita regardless of the nation s domestic energy supply the result is a low carbon illusion in which rich economies believe they are reducing their ghg responsibility whilst global emissions continue to grow this paper presents the first consumption based carbon footprint cbcf analysis for iceland a nation where the stationary energy supply is 99 renewable and could be viewed as a decarbonisation future case for rich nations globally the study combines icelandic household expenditure data with the multi regional input output database eora to calculate the cbcf of icelandic households the average annual cbcf of icelandic households was 10 4 tco2eq capita similar in magnitude to other eu nations despite iceland s unique energy supply ghg emissions from transport food and goods dominated the household cbcf the national cbcf was higher than most european nations and 55 higher than the territorial emissions inventory approximately 71 of household emissions were attributed to imported goods which were mapped globally revealing that the ghg emissions burden of icelandic consumption falls primarily on developing nations the findings suggest that a broader ghg accounting framework and resulting policy focus is required both in iceland and globally that incorporates both supply and demand based ghg reduction strategies

monetary valuation of aircraft noise a hedonic analysis around amsterdam airport in densely populated countries and in particular in large metropolitan areas the presence of so much human activity causes all sorts of negative externalities for example traffic noise disturbance these externalities call for corrective measures by the government economists have developed a number of procedures that provide reasonable estimates on the monetary value of some amenities and externalities in this paper we develop a spatially explicit hedonic pricing model for house prices in order to quantify the social cost of aircraft noise disturbance in monetary terms while focusing on aircraft noise around amsterdam airport in the urban fringe of the amsterdam region a key point in our analysis is that we account for background noise we do this by taking multiple sources of traffic noise i e road railway and aircraft noise into account simultaneously and by setting threshold values for all three sources of noise above which sound is generally experienced as nuisance based on our regression results we conclude that a higher noise level means ceteris paribus a lower house price air traffic has the largest price impact followed by railway traffic and road traffic these model outcomes can subsequently be used to estimate the marginal and total benefits of aircraft noise reduction in the studied area around amsterdam airport we find a marginal benefit of 1 db noise reduction of 1 459 euro per house leading to a total benefit of 1 db noise reduction of 574 million euros

the role of social processes for sustainable consumption abstract rethinking the role consumption plays in individual well being and societal development is key for addressing pressing environmental problems we perceive the need to envision consumption as a social activity which requires the active engagement of consumers in order to better enhance their quality of life the paper focuses on the framework of product service systems one particular programme for more sustainable consumption after reviewing the potential benefits and limitations of this programme we explore the opportunities to learn from participatory and community based strategies like lets

economic reform and food prices evidence from markets in ghana abstract this paper investigates trends in food prices in ghana during 1970 1993 regression results confirm that real wholesale prices of food have been declining since the 1970s price trends in the 1980s are characterized by a downward shift at the beginning of the postreform period and a subsequent continuing downward trend despite falling grain prices we find that agricultural wage rates failed to provide an adequate basis for subsistence particularly during periods of large seasonal price rises many farmers hold grain for both speculation and to smooth income this view is supported by evidence regarding seasonal price spreads that have been increasing since 1984 we find no support however for conclusions of trader manipulation of marketing margins during the adjustment period

food and life cycle energy inputs consequences of diet and ways to increase efficiency food consumption is one of the most polluting everyday activities when impacts during product life cycles are considered greenhouse gas emissions from the food sector are substantial and need to be lowered to stabilise climate change here we present an inventory of life cycle energy inputs for 150 food items available in sweden and discuss how energy efficient meals and diets can be composed energy inputs in food life cycles vary from 2 to 220 mj per kg due to a multitude of factors related to animal or vegetable origin degree of processing choice of processing and preparation technology and transportation distance daily total life cycle energy inputs for diets with a similar dietary energy consumed by one person can vary by a factor of four from 13 to 51 mj current swedish food consumption patterns result in life cycle energy inputs ranging from 6900 to 21 000 mj per person and year choice of ingredients and gender differences in food consumption patterns explain the differences up to a third of the total energy inputs is related to snacks sweets and drinks items with little nutritional value it is possible to compose a diet compatible with goals for energy efficiency and equal global partition of energy resources however such a diet is far from the swedish average and not in line with current trends

the price of silence markets for noise licenses and airports this article presents a market design for the management of noise pollution created by aircraft traffic around airports a local market for noise licenses allows noise generators to compensate noise victims and to meet social acceptability we show that the market allows the market designer to implement the social planner s optimal allocation of flights as long as the latter does not put too high a weight in his her objective function on firms profits compared to the disutility of noise pollution the fact that local representatives of noise victims may be strategic players does not fundamentally alter this finding because of the market auctioneer s information constraints noise licenses are likely to distribute windfall gains to residents which alters the urban structure in the long run

property prices and exposure to multiple noise sources hedonic regression with road and railway noise this study examines the effect of road and railway noise on property prices it uses the hedonic regression technique on a swedish data set that contains information about both road and railway noise for each property and finds that road noise has a larger negative impact on the property prices than railway noise this is in line with the evidence from the acoustical literature which has shown that individuals are more disturbed by road than railway noise but contradicts recent results from a hedonic study on data of the united kingdom

valuing air quality with hedonic and discrete choice models environmental economists have been using property values in attempts to measure the value residents place on air quality as far back as the 1960s however in the years since then we have learned a great deal about how complex valuing nonmarginal changes in air quality is rosen presented a hedonic model that is still extremely influential today but the estimation strategy he outlined in that paper had some shortcomings many of these identification and endogeneity issues were corrected subsequently in papers such as palmquist 1984 parsons and bartik but none of these papers concentrated on environmental issues a central issue in estimating the demand or marginal willingness to pay functions for characteristics of housing is the identification of those behavioral functions as distinct from

ghg reduction potential of changes in consumption patterns and higher quality levels evidence from swiss household consumption survey abstract an effective consumer oriented climate policy requires knowing the ghg reduction potential of sustainable consumption the aim of this study is to draw lessons from differences in consumption between households with high and low ghg emissions we evaluate a survey of 14 500 households and use a method that allows measuring changes in price level of consumption comparing the 10 of households with the highest ghg emissions per capita with the lowest 10 controlling for differences in expenditure level and household structure we find a range 5 17 tons of co2 equivalent per capita and year the observed differences stem mainly from heating electricity use car use and travel by aircraft consumption patterns with low ghg emissions are characterized by less spending on mobility but more on leisure and quality oriented consumption leading to higher prices per unit further characteristics are a higher share of organic food low meat consumption and fewer detached single family houses our findings imply that a significant reduction in ghg emissions would be possible by adopting real world consumption patterns observable in society the twin challenge is to shift consumption towards more climate friendly patterns and to prevent any trend towards high emitting consumption patterns

willingness to pay and willingness to accept how much can they differ comment i agree with the point made by edoh y amiran and daniel a hagen 2003 that there can be a substantial or even infinite divergence between the wta and wtp for a public good even where there is a nonzero elasticity of substitution between market goods and the public good provided that the indifference curves are asymptotically bounded with respect to market goods in the manner they describe this is an important point they are also correct to point out that the elasticity of substitution is a local concept whereas their asymptotic boundedness condition applies also for discrete changes my 1991 paper used a local analysis because it was following the structure of the analysis in robert d willig 1976 and alan randall and john r stoll 1980 i wanted to show that while randall and stoll appeared to extend willig s local result on wta versus wtp from price changes to changes in the quantity of a public good the relevant elasticity was in fact different and involved the substitution elasticity as well as the income elasticity i view these points by amiran and hagen as not two separate results but essentially the same result their asymptotic boundedness condition generalizes my zero elasticity of substitution condition to discrete changes the asymptotic boundedness condition can be expressed as follows assuming a bivariate utility function u x q and given a reference point x q associated with a reference utility level u u x q there exists some q q such that for all q q there exists no x such that u x q u in other words no amount of x can substitute for the reduction in public good from q to q q in the case of a zero elasticity of substitution q q but as amiran and hagen show in their theorem 1 this is unnecessarily restrictive when dealing with a discrete reduction in q furthermore their theorem 2 can be viewed as a special case of their theorem 1 in which q 0 which makes q an essential commodity it is well known in consumer theory that the wta to avoid the loss of an essential market good is infinite their theorem 2 extends this result to the case of an essential nonmarket good but as their theorem 1 shows essentialness is not necessary for an infinite wta the boundedness condition is the key and this implies a fundamental lack of substitutability between money market goods and the public good

climate change mitigation potential of norwegian households and the rebound effect abstract an increasing number of studies show that efficiency improvements alone will not be sufficient to attain the substantial emission reductions needed to mitigate global warming to a target of 2 c consumption side changes are likely to be needed to achieve sufficient emission reductions the united nations emphasize the importance of developed countries taking the lead in lowering emissions to achieve the sustainable development goals this paper assess to what extent norwegian households can lower their carbon footprint consistent with territorial emission reductions towards the 2 c target of global warming through implementing a set of behavioral actions we evaluate the efficacy of the set of actions both initially and after considering rebound effects a multiregional environmentally extended input output database is linked with the norwegian consumer expenditure survey to analyze both average and marginal expenditure per unit of increased income further linear programming is applied to examine the changes needed by households to reach different emission reduction targets we find that households implementing the full set of actions without re spending can obtain a 58 decrease in their carbon footprint when accounting for the effect of re spending this reduction drops to 24 35 which is not within the requirements of the 2 c target the optimization analysis suggests households can achieve reductions up to 45 by restricting re spending to specific goods and services this indicates that curbing the rebound effect is key to achieving real reductions in household carbon footprints we show that changing consumption patterns can significantly contribute to lowering anthropogenic greenhouse gas emissions without compromising the level of economic activity

consumer s surplus without apology the purpose of this paper is to settle the controversy surrounding consumer s surplus and by so doing to validate its use as a tool of welfare economics i will show that observed consumer s surplus can be rigorously utilized to estimate the unobservable compensating and equivalent variations the correct theoretical measures of the welfare impact of changes in prices and income on an individual i derive precise upper and lower bounds on the percentage errors of approximating the compensating and equivalent variations with consumer s surplus these bounds can be explicitly calculated from observable demand data and it is clear that in most applications the error of approximation will be very small in fact the error will often be overshadowed by the errors involved in estimating the demand curve the results in no way depend upon arguments about the constancy of the marginal utility of income consequently this paper supplies specific empirical criteria which can replace the apologetic caveats frequently employed by those who presently apply consumer s surplus moreover the results imply that consumer s surplus is usually a very good approximation to the appropriate welfare measures to preview below i establish the validity of these rules of thumb for a

valuing aircraft noise stated choice experiments reflecting inter temporal noise changes from airport relocation the relocation of athens airport provided a rare experimental context in which residents experienced significant changes in noise levels due to the introduction or removal of aircraft noise this paper reports the results from surveys around both airport locations using stated choice experiments to estimate values for aircraft noise the respondents were offered actual inter temporal noise change scenarios rather than hypothetical variations which is uncommon in the literature incorporating the presence or absence of an airport and other relevant transport attributes that also changed with the airport relocation whilst there is some variation in the valuation of the airport closure and opening when these values are adjusted to reflect the actual change in decibels there is remarkably little difference between the old and new airports however a significant variation in aircraft noise values is identified between different areas with respect to education and to a lesser extent income our preferred estimate of the monthly household willingness to pay for terminating aircraft noise exposure is 13 12 and for avoiding the onset of aircraft noise is 9 53

fundamental flaws of social regulation the case of airplane noise abstract this article provides an economic assessment of federal regulatory policy toward airplane noise as encapsulated in the 1990 airport noise and capacity act anca this act mandated the elimination of certain aircraft such as the boeing 727 and dc 9 from all u s airports by the end of 1999 to meet quieter noise requirements we find that the present discounted benefits of the anca reflected in higher property values for homeowners fall 5 billion short of the anca s cost to airlines reflected in the reduced economic life of their capital stock more fundamentally we find that the net benefits that could have been generated by an economically optimal airplane noise tax amount to only 0 2 billion present value it appears that noise regulations have generated substantial costs to society when in fact there was little justification on efficiency grounds for regulatory intervention in the first place

urban rural cost of living differentials in a developing economy abstract casual observations suggest that the cost of living is substantially greater in urban than rural areas of developing economies with implications for sectoral welfare comparisons an aids demand model for housing and foodgrains is estimated on a household level data set for java after adjusting housing rents for heterogeneity in quality the retrieved cost function indicates that the cost of utility at the urban price vector exceeds its rural value although the differential has been substantially overestimated in the past the relative cost of urban living is found to increase as reference rural income increases

food subsidies and poverty alleviation this paper formulates the problem of the optimal pattern of food subsidies in a general setting where the objective is to minimize a class of poverty indices within the framework of the mo dern public finance theory taking explicit account of the budget con straint and preferences and technologies the authors derive rules fo r retargetting food subsidies to reduce poverty many operational rul es of thumb appear as special cases of the general results the analy sis thus provides not only the microfoundations of these operational rules but also their appropriate generalizations when the conditions under which they arise are not fulfilled copyright 1988 by royal economic society

landscape amenities and local development a review of migration regional economic and hedonic pricing studies abstract with rapid urban expansion and loss of open space attractive local landscapes will continue to gain importance in location decisions and on political agendas the present study reviews the evidence on the local economic role of landscape amenities from two major strands of empirical research migration and regional economic models and hedonic pricing models following common amenity definitions we identify 71 relevant peer reviewed studies and systematically assess the reported effects of the landscape amenity variables the migration and regional economic studies suggest that migrants are attracted by amenities nearly as often as by low taxes reported effects of amenities on income and employment are less consistent the hedonic studies suggest that nature reserves and land cover diversity have mostly open space and forest often and agricultural land rarely positive effects on housing prices studies at larger geographic scales and studies involving urban areas were more likely to identify significant amenity effects some limitations of the evidence may be overcome with better datasets and modeling approaches however in line with other recent work the limitations also highlight the need for complementary information from the analysis of political preferences for land use management

fragmented duopoly theory and applications to backward agriculture abstract the central aim of this paper is to provide a formal description of the idea of market fragmentation which is so widely used to describe markets in backward agriculture we begin by describing a fragmented duopoly in which each seller has a captive set of customers and there is a non captive set who may buy from either seller the nash cournot equilibria of the system are analyzed and then the model is generalized to allow for the endogenous determination of the captive sets the subgame perfect equilibrium of the model provides a useful background for studying familiar topics like fragmentation interlinkage and disguised unemployment from a new point of view

an axiomatic characterization of the watts poverty index abstract although the first distribution sensitive decomposable poverty index the watts index has long been neglected by the profession even when it was searching for a decomposable index this neglect is due partly to the lack of an axiomatic characterization for the watts index this paper adopts an axiomatic approach and complements the watts index with such a characterization under a set of reasonable axioms the watts index is the unique index if a poverty index is perceived as the absolute amount of social welfare loss due to poverty the watts index is relatively easy to apply it also satisfies all basic axioms for a good poverty index

the value of automobile travel time implications for congestion policy abstract public policy has remained stoutly resistant to the economic profession s call to use congestion tolls to minimize the social costs from automobile congestion this paper explores this issue by using stated preference models to estimate the value that commuters are willing to pay to save travel time we find that this value is low and surprisingly insensitive to travel conditions and how toll revenues are used it appears that even high income commuters having adjusted to congestion through their modal residential workplace and departure time choices simply do not value travel time savings enough to benefit substantially from tolls

the substitution bias of the laspeyres price index an analysis using estimated cost of living indexes the most commonly used measure of the cost of living the consumer price index cpi published by the bureau of labor statistics is essentially a laspeyres price index it is well known however that a laspeyres price index provides an upward biased estimate of the cost of living because in keeping the same base period basket of goods as weights it does not take into account substitution among commodities induced by relative price changes the magnitude of the bias is an empirical question which is the focus of this study an estimate of the substitution bias may be obtained by taking the difference between the laspeyres price index and an estimated true cost of living index the true cost of living index cli is based on the theory of consumer demand it is the ratio of the minimum expenditures under two different price regimes necessary to maintain a constant level of utility as opposed to the constant basket of goods in the laspeyres index the size of the bias depends on two factors 1 the size of consumption substitution elasticities if there is no commodity substitution then the cli and laspeyres index coincide regardless of changes in relative prices and 2 the magnitude of relative price changes if all prices move together then the cli and laspeyres index again coincide regardless of the size of substitution elasticities in order to compute a true cli it is necessary to specify a particular utility function and estimate the parameters of the resulting system of demand equations see for example louis phlips p 135 several estimates of the magnitude of the substitution bias have appeared in the literature but all previous studies suffer from a common weakness they are all based on a very small number of commodities essentially because of econometric problems involved in estimating large systems of demand equations in one group of studies demand models have been estimated using highly aggregated data in which total consumption is grouped into four to nine aggregate commodites such as housing durables or clothing arthur goldberger and theodore gamaletsos for example estimate the linear expenditure system les demand model using data on five aggregate goods for several european countries and compare the resulting cli for one of the countries greece to the corresponding laspeyres price index tran van hoa estimates costof living indexes for six australian provinces using data on nine aggregate goods phlips cites work by r sanz ferrer who computed a cli for belgium from data on eight aggregate commodities in such studies using highly aggregated data the estimate of the substitution bias may be understated because the aggregation obscures substitution in consumption within categories which is perhaps more prevalent than substitution between gross aggregates another shortcoming of these three aggregate studies is the fact that they use only a single demand system and hence do not explore the sensitivity of the cli to a priori u s bureau of labor statistics the groundwork for this study was my dissertation i would like to thank the chairman and members of my committee r robert russell llad phillips and robert deacon for their support and helpful suggestions and jack triplett robert pollak richard j mcdonald and a referee for valuable comments on an earlier version the views expressed are my own and do not necessarily reflect the policies of the bureau of labor statistics for a theoretical discussion of cost of living indexes see robert pollak 1971b and paul samuelson and subramanian swamy

structural adjustment and the welfare of rural smallholders a comparative analysis from sub saharan africa the direction and level of changes in real incomes brought about by structural adjustment are determined by a variety of factors including sources of income patterns of expenditures and movements in relative prices in the wake of adjustment an econometric model is used to derive an index of real income which is employed for data from cote d ivoire ghana malawi madagascar and tanzania no systematic changes in relative prices and especially in the ratio of tradable to nontradable prices were noted after the beginning of adjustment although the diversity of income sources implies that the implications of movements in relative prices on smallholder welfare are indeed complex the results indicate that there is no unequivocal pattern of increase or decline in the real welfare of the rural poor but that there are marked differences among countries and regions

hedonic valuation of odor nuisance using field measurements a case study of an animal waste processing facility in flanders in this paper we estimate the external cost caused by odor from an animal waste processing facility in flanders using new odor measures based on field measurements we compare three different ways of incorporating odor nuisance indicators into the model distance to the odor source continuous odor measures and a dummy variable approach comparable to the standard procedure in hedonic price analysis of noise pollution we argue that the dummy variable approach is best suited to estimate the external costs and we test these specifications for a dataset of about 1400 observations of house sales transaction between 2004 and 2008 results show that houses subject to moderate and severe odor nuisance sell at a discount of about 5 and 12 respectively compared to houses without odor nuisance the overall capitalized external cost of the odor exposure for the area of the case study was estimated to range between 6 and 56 million euro with a central estimate of about 31 million euro this estimate proves to be very stable over different model specifications compared to 1991 the external cost has almost been cut by half as a result of odor emission reducing measures taken by the facility

housing values census estimates disequilibrium and the environmental cost of airport noise a case study of atlanta abstract two unresolved issues about airport noise property value studies are addressed the first issue concerns the comparability of empirical results from aggregate census data vs individual sales values and the second issue concerns the homogeneity and stability of results from housing price studies over time and across markets hedonic price models from two sets of data for a residential area near the atlanta international airport are estimated at two points in time 1979 1980 and 1970 1972 the available data yield similar estimates of the noise discount over time and from the prices of individual house sales vs owner appraised census block aggregates

harnessing the political economy of environmental policy david pearce s contribution to oecd during 34 years david pearce made major contribution to oecd work on environmental economic issues with a particular focus on cost benefit analysis economic instruments biodiversity and distributive issues this article provides a brief review of david pearce s contributions this work was particularly useful in enhancing the political economy of environmental policy which is at the core of oecd work

income effects and the inconvenience of private provision of public goods for bads the case of recycling in finland abstract absent or weak income effects reported in many contingent valuation studies have cast doubt on the reliability of the survey method we find that the income effect depends on the type of public good in question there is a negative income effect for willingness to pay for recycling which requires time and effort for sorting but a positive effect for the more convenient incineration hence high income low income individuals may display less more effort on environmental behavior this stresses the importance of comprehensive distributional analyses when assessing alternative environmental policies

limits to cba in uk and european environmental policy retrospects and future prospects this paper reviews the contemporary debate and the now long standing role of cba in uk and european environmental policy appraisal epa and looks forward to possible future applications the position taken is that despite its limitations cba still has an important part to play in epa however with the increasingly contested nature of environmental and related public policies and outcomes its role will become less prescriptive and its findings more constrained by social justice and ethical imperatives future cba is more likely to continue to flourish as a component in a wider policy analysis and decision support system whatever decision support system is eventually adopted its value will be judged on how well it aids real policymakers operating iteratively in the non linear real world political economy

the environmental effect of car free housing a case in vienna abstract a case control study of the car free model housing project in vienna was conducted to evaluate whether people living in this settlement have more sustainable lifestyles than people living in comparable buildings in vienna another aim was to identify the lifestyle characteristics and household activities which significantly influence the environmental impact of the residents of the car free housing project and a control group the control group referred to as the reference settlement was chosen from a nearby building complex with similar characteristics but without the car free feature household consumption patterns were estimated based on interviews in combination with data from the austrian consumer expenditure survey and the national accounts the evaluation of household environmental impacts uses emissions estimates from the austrian national accounting matrices including environmental accounts and data from life cycle assessments households from the car free settlement have substantially lower environmental impacts in the categories of ground transportation and energy use their co 2 emissions of these two categories are less than 50 of those living in the reference settlement the households in the car free settlement have somewhat higher emissions in the categories air transport nutrition and other consumption reflecting the higher income per capita as a result the co 2 emissions are only slightly lower than in the reference settlement but the emissions intensity is 20 lower both household groups have significantly lower environmental impacts than the austrian average reflecting less car use and cleaner heating energy in vienna

making a difference how environmental economists can influence the policy process a case study of david w pearce can environmental economists influence policy if so how this paper addresses these two questions using the late david pearce s career as a case study influence can be exercised but pearce s career shows that certain conditions must be met the first is desire he wanted to influence policy and directed a high proportion of his efforts to doing so he focused particular attention on the power centres of his time the oecd world bank european commission un uk government his influence was aided by his status and location as a professor in a prestige university ucl in a major global city london his messages were consistent and clear theory is important and can be used to frame most environmental challenges as regards both explanation and solution externalities can be valued assessing benefits and costs of options is important market signals taxes etc and incentives generally are powerful shapers of behaviour stock of capital human built natural is a key measure of sustainability he communicated simply and clearly in words and phrases that ministers for finance and journalists could understand all of the broadsheet newspapers in england financial times guardian independent telegraph times were grist to pearce s mill of advocacy for environmental economics he provided the blueprint books that could be read on a commute and summaries to the media that they could fit into a 1 000 word piece he didn t seek out but neither did he shirk controversy he worked with various interest groups and politicians but never to the point were he was co opted he initiated and directed the msc in environmental and resource economics that created an ever widening and influential pool of advocates for his ideas finally he achieved a prodigious academic output that ensures a sort of immortality and provided the intellectual ballast the enabled his policy influence

gaining ground poverty in the postwar united states official measures of poverty in the united states are compiled by the bureau of the census by comparing a household s income level to a prespecified threshold from a theoretical perspective it is more appropriate to evaluate the level of poverty using a consumption based measure of household welfare in this paper i evaluate the level of poverty using expenditure data from the consumer expenditure survey i find that consumption based poverty rates are much lower than those based on income the trend in the poverty rate in the united states is sensitive to the price index and equivalence scales used to adjust the poverty thresholds

prices and living standards evidence for rwanda abstract we review the explanations of the statistical relationship between spatial price indices and real living standards then using data from several seasons in rural rwanda we show that these variables are negatively associated hinting at price discrimination against the poor in that case policies permanently improving of market functioning may simultaneously improve efficiency and equity moreover under a hypothesis of weak association of nominal living standards and price indices we derive simplified formulae for social welfare indicators these formulae depend only on a small number of sample statistics obtainable from separate publications for prices and living standards

food pricing policy in developing countries further evidence on cereal producer prices recently two independent studies have produced contradicting evidence regarding the extent of price discrimination in developing countries the objective of this study is to reexamine the evidence of direct and indirect distortion in cereal producer prices nominal protection coefficients for wheat maize and rice are calculated for fifty one developing countries spanning the period 1980 86 black market exchange rates are used to adjust the nominal protection coefficients to reflect the indirect effect of price interventions through exchange rate policies the results confirm the conventional wisdom that although developing countries tend to protect domestic cereal producers taxation caused by overvaluation of official exchange rates exceeds any direct price protection offered domestic producers

automobiles and implicit markets an estimate of a structural demand model for automobile characteristics economists have always found it difficult to investigate the demand for the automobile good due to its heterogeneity in this paper the automobile is treated as a differentiated product and a two step approach is used to estimate a system of structural demand equations for automobile attributes the obtained results are statistically sound and in conformity with theoretical expectations this should be taken as an indication of the validity and robustness of the procedure used in this analysis

from ownership to service use lifestyle the potential of car sharing abstract the shift from ownership to service use often promoted in concepts of sustainability has recently become available in private vehicle mobility currently 38 000 people in a number of european cities are participating this example is used here to analyze the characteristics of people sharing one material product as well as to investigate which services they actually render different views on the latter imply different evaluations of the size of the market potential and different conclusions on the effectiveness of various policy instruments when service use is a separate lifestyle policy instruments have to ultimately foster it directly rather than changing economic costs at the margin only

an exogeneity test for a simultaneous equation tobit model with an application to labor supply a test of weak exogeneity in the simultaneous equation tobit model is proposed and illustrated using a female labour supply model estimated using cross section data the test statistic can be simply output from any standard tobit maximum likelihood package and is asymptotically efficient the procedure provides consistent estimators for the simultaneous tobit model whose asymptotic covariance matrix is a simple extension of the usual tobit formula we also provide the lagrange multiplier test of weak exogeneity this abstract was borrowed from another version of this item

what do property values really tell us a hedonic study of underground storage tanks hedonic property value models are widely used but are susceptible to potentially invalid conjectures based on the assumed measure of environmental quality this paper focuses on an application where this is of particular concern leaking underground storage tanks i estimate a hedonic model using quasi experimental and spatial econometric techniques similar to previous studies i examine how house prices vary with distance to the disamenity this approach yields little evidence that prices are adversely impacted however to better measure risks i utilize home specific data on groundwater well tests and correspondence from regulators and find an 11 depreciation when households are well informed