Can Weak Substitution be Rehabilitated?

This paper develops a graphical analysis and an analytical model that demonstrate how weak substitution can be used for non-market valuation. Weak complementarity and weak substitution represent preference restrictions that allow us to develop equivalent price changes to describe quantity or quality changes in non-market goods. The price changes are Hicksian equivalents in that they yield the same utility changes as would the quantity or quality changes. After discussion of several potential applications of weak substitution, the paper develops the parallel between the restriction and recent strategies from modeling differentiated goods.     

Monopoly,product differentiation and economic welfare

This paper discusses the pricing behavior of a monopolistic producer supplying several quality-differentiated goods by using a model of a Lancasterian characteristic approach with consumer's taste pattern dispersed. It examines how finer product differentiation, which is made by the producer by means of the introduction of a new good, changes the price structure and consumer's welfare. It will be establised that the entry of a new good imposes quite different impacts on the price of the goods of higher quality and on those of lower-quality goods.     

IS MONEY THE MEASURE OF WELFARE IN RUSSIA?

The transformation of a non-market to a market economy ought to change fundamentally the significance of money incomes for welfare. Whereas in a stressful non-market economy such as the former Soviet Union, non-monetized resources could substitute for money income and promote welfare, in a modern market economy money income should be a good proxy for household welfare. This article tests the extent to which Russians are now in a modern market economy by analyzing data from nationwide Russian surveys in January, 1992, and April, 1994. Modern influences are increasingly important as a determinant of the distribution of money incomes, but not as an influence upon household welfare. The "randomness" of temporary disruptions of welfare is in accord with Rawlsian principles of equity.     

Tariff reforms with rigid wages

This paper analyses the effects of tariff reforms on welfare and market access in a competitive small open economy, which is characterised by involuntary unemployment due to non-market clearing wages that are fixed either in terms of the numeraire or in real terms. We show that recent tariff-reform results can be extended to integrated reforms of tariffs and the wage rate, and that the inherent tension between reforms that increase welfare and market access carries over. We also derive welfare increasing tariff-reform strategies that keep the wage rate constant and show that this tension may be attenuated. We thank Peter Neary, an anonymous referee, as well as participants at the GEP Conference on New Directions in Trade Theory and at the ETSG Annual Conference in Athens for helpful comments. We acknowledge gratefully financial support from the Leverhulme Trust under Programme Grant F114/BF.     

The Representative Consumer Approximation Bias in Discrete Choice Welfare Analysis

Discrete choice welfare analysis is essential in non-market valuation to accompany studies using choice experiments and recreation choice models. McFadden (in: Melvin, Moore, Riezman (eds) Trade, theory and econometrics: essays in honor of John S. Chipman, Routledge, London, 1999) shows that discrete choice welfare measures derived by the common representative consumer approach can be biased under nonlinear income effects, and the percentage bias increases monotonically with the size of quality improvement. We present contrary results that percentage measurement errors in such welfare measures can go either direction and provide conditions under which the direction of bias can be identified. We also show that price and non-price variables play different roles in discrete choice welfare analysis.     

Consumer welfare from publicly supplemented private goods: age and income effects on demand for health care

In spite of major advances in the theoretical, positive and normative, literature analysing the welfare implications of public provision of private goods, empirical investigation is often limited to contingent valuation studies, for example, of health care programmes. In this article we argue that when a market for a (subsidised or free of charge) publicly provided good exists, a consumer demand approach can be used to construct a money metric of welfare corresponding to the consumption of public provision. We illustrate this approach in investigating age and income effects on household demand for health care in Cyprus, where free public provision is not universal and those entitled to it often resort to private supplementation. Our findings suggest that the money metric of welfare, which consumers attach to free access to publicly provided health care, varies with age and to a lesser extent with household income.     

Mapping Biodiversity Indicators and Assessing Biodiversity Values in Global Forests

Biodiversity loss is a problem of global concern affecting ecosystem functioning and services provided to humans. The Millennium Ecosystem Assessment is built on a conceptual framework that links biodiversity with the services ecosystems provide to society and human welfare. Numerous empirical studies have measured ecosystem goods and services in terms of economic values; however, less evidence is available of the indirect effect of biodiversity on these values. Based on this, we first compile market and non-market forest valuation studies and, secondly, explore the potential of an econometric modelling exercise by conducting a worldwide meta-analysis. This exercise aims to highlight the role of biodiversity indicators on valuation. In this way, we can study the underlying transmission mechanisms that explain to what extent biodiversity is related to human welfare. Furthermore, we also propose to evaluate the magnitudes of the respective distributional impacts, including the different ecosystem goods and services under consideration. Our results show that biodiversity indicators may have an underlying effect on forest ecosystem values, which also depend on the type of ecosystem services. Lastly, the results are discussed and analysed with respect to their policy implications concerning biodiversity conservation.     

Linking forestry, sustainability and aesthetics

In forest planning, little research has been devoted towards examining how visual-impact assessment can improve the public acceptance of forest activities and augment forest sustainability. The objective of the present work is to review the methods of aesthetic assessment of forest landscapes, which will help the implementation of visual-impact assessment in sustainable forestry. From the numerous techniques of landscape evaluation that have been devised in recent years, the expert approach techniques have dominated in environmental management practices and the perception-based approach in research. The non-market economic valuation techniques are essentially trade-off methods and not aesthetic assessments by themselves. Revealed preference methods, such as hedonic-price, use actual market choices of individuals to get their preferences towards non-market attributes, and stated preference methods, such as contingent valuation method, rely on surveys to get directly the individual's willingness to pay for the non-market attributes. Psychophysical preference modelling is a popular quantitative holistic technique of landscape evaluation and if used in combination with indirect aesthetic evaluation methods might create new standards and protocols for techniques of objectively estimating public perception of aesthetic quality and thus to enhance social sustainability in forest space.     

A nonparametric analysis of multi-product oligopolies

We develop revealed preference tests for models of multi-product oligopoly, building on the work in Carvajal et al. (Econometrica 81(6):2351–2379, 2013). We analyze a Cournot model with multiple goods and show that it has testable restrictions when at least one good is produced by two or more firms. We also develop a revealed preference test for Bertrand oligopoly in a setting where each firm produces a single differentiated good, and these goods are potentially substitutes for each other. Our tests require qualitative assumptions on the shape of the demand curves and (in the Bertrand case) their evolution across observations, but they do not rely on the estimation of market demand.     

On the use of labels in credence goods markets

We analyze credence goods markets in the case of two firms. Consumers know that the quality of the good varies but do not know which firm is of high quality. First, we show that the high quality producer may be unable to monopolize the market, or even to survive in some cases, in situations where it is efficient and trusted by all consumers. Second, although a label restoring full information improves welfare, it may also reduce both firms’ profits by intensifying competition. Since even the high quality producer may not wish to label its product, in such cases the label must be mandatory. Third, an imperfect label which moves everybody’s beliefs closer to the truth without restoring full information may produce adverse results on market structure and welfare, either by increasing or by reducing the variance of beliefs.      

A comparative study of environmental amenity valuations

The paper reports on a comparative study of direct and indirect approaches to valuing environmental amenities (i.e., public goods), specifically, air quality in terms of its human health effects. The application of three indirect valuation methods (via market goods) is reported here: the health production method, a consumer preferences (for nonmarket goods) model, and the cost of illness method. The first and second methods are (economic) behavior-based approaches where willingness to pay for an environmental good is derived by exploiting relationships in consumption between the public good and market good(s). The third method is based on a physical relationship—a dose-response function—between the environmental good and health. The direct valuation approach encompassed three contingent valuation elicitation formats: open-ended, modified iterative bidding game, and referenda-style binary choice. The application of all four methods was based on data from a survey of a large, stratified sample of households from the Haifa metropolitan area in northern Israel. The estimates of welfare change derived by the various methods are discussed and compared.     

Are choice experiments reliable? Evidence from the lab

This study investigates whether a popular stated preference method, the choice experiment (CE), reliably measures individuals’ values for a good. We address this question using an induced value experiment. Our results indicate that CEs fail to elicit payoff maximizing choices. We find little evidence that increasing the salience of the choices or adding monetary incentives increase the proportion of payoff maximizing choices. This questions the increasing use of CE to value non-market goods for policy making.     

DO-IT-YOURSELF AND GDP*

Do-it-yourself activities are, by definition, those for which a choice must exist between doing it oneself or hiring someone else. This means they typically involve the own account production of services, but whereas it is customary to include most goods produced on own account in GDP services are conventionally excluded. In principle, however, it is possible to envisage a comprehensive and unique measure of the total final output of all the goods and services produced within an economy whether for sale or own use. Such a measure would be better than GDP as an indicator of long term changes in economic welfare, being independent of any shifts in the ratio of market to non-market production. Moreover, it would be a homogeneous measure with clearly defined limits in contrast to improvised indices of welfare which mix economic and non-economic variables in arbitrary and subjective ways. However, the need for a measure of market output, or something very close to it such as GDP, is still as strong as ever as soon as attention is switched from measurement of long term growth to problems associated with market disequilibria, such as unemployment and inflation.     

Allowing communities to trade in imperfectly competitive pollution-permit markets

Citizens and organizations representing them play an increasingly important role in markets for environmental quality, but much remains to be learned about how their participation affects these markets. We analyze the effects of allowing a community of citizens to trade pollution permits in an imperfectly competitive permit market. Allowing the community to trade directly reveals its preferences, which enhances welfare. However, community participation may also exacerbate distortions due to market power, even though the community itself trades competitively. Including the community in permit distribution may exacerbate market power distortions by affecting a dominant trader’s propensity to participate in the permit market. Second, the community’s demand/supply for permits may be more inelastic than other traders and worsen distortions due to market power. We illustrate in an example that these negative effects on competition can dominate the positive effect from preference revelation through the market place.      

Quantifying public preferences for agri-environmental policy in Scotland: A comparison of methods

This paper compares two methods for determining policy priorities for reform of Scottish agricultural support. Multifunctional agriculture attempts to establish a new balance between traditional commodity support and payment for the production of non-market goods and services that are increasingly demanded by the public. Supplying non-market goods presents particular problems for optimal policy design, not least the elicitation of consumer demand for those goods. From public focus groups, a range of attributes was derived as central to the Scottish public’s preferences for future agri-environmental reform. This information was then combined in two separate survey methods using the Analytical Hierarchy Process (AHP) and choice experiments (CE). Both applications suggest that the public has defined preferences and a willingness to pay (using general income taxation) to affect changes beyond the status quo, and that policy payments should be targeted towards both environmental and social benefits. The divergent preference orderings derived from the alternative methods can be considered in the light of previous methodological debates on question framing, bounded rationality and respondent uncertainty. We speculate about the validity of alternative methodologies for informing particular policy questions.     

Is the public sector too large in an economy with club goods? A case when consumers differ in both tastes and incomes

In an archetypal economy with a single private good and a single shared good, the latter represents the public sector. With the shared good a club good, we ask if second-best (SB) provision of it is too small, as usually claimed for pure public goods. When consumers differ only in exogenous incomes, if the club good is a superior good in a single-club economy, overprovision in the SB occurs if club good demand is convex in income. We show this can extend to an economy where consumers differ in both tastes and incomes, depending on the covariances between consumers' incomes and their relative strength of preference for the club and private goods, and the covariances between incomes and taste parameters.     

When does financial integration matter for fiscal policy in a currency union? A welfare-based approach

We use a two-country new open economy macroeconomics model describing a currency union with imperfect financial integration. We assume that household preferences are biased towards the goods produced within the country. We use this setup to show how the degree of financial integration and the home bias affect the welfare efficiency of fiscal policy. This is particularly important for the implications of a fiscal policy launched by a member of the euro zone where the home bias is in a decreasing trend due to higher goods market integration and where there are explicit efforts to enhance financial integration. The results show in particular how the effects of an increasing financial integration on the impact of a fiscal policy can be mitigated or amplified by a decreasing home-product bias. Moreover, under certain conditions, the degree of financial integration has no effect on the welfare efficiency of fiscal policy despite its non-negligible effects on the components of welfare.     

IMPERFECT SUBSTITUTES FOR PERFECT COMPLEMENTS: SOLVING THE ANTICOMMONS PROBLEM

An integrated monopoly, where two complements forming a composite good are offered by a single firm, is typically welfare superior to a complementary monopoly. This is ‘the tragedy of the anticommons’. We analyse the robustness of such result when competition is introduced for one or both complements. Particularly, competition in only one of the two markets may be welfare superior to an integrated monopoly if and only if the substitutes differ in their quality so that, as their number increases, average quality and/or quality variance increases. Then, absent an adequate level of product differentiation, favouring competition in some sectors while leaving monopolies in others may be detrimental for consumers and producers alike. Instead, competition in both markets may be welfare superior if goods are close substitutes and their number in each market is sufficiently high, no matter the degree of product differentiation.     

Quality-enhancing trade liberalization

This paper examines the effect of trade liberalization on the quality of industrial goods produced by a developing country. The intermediate goods used as inputs to industrial production are assumed to be non-traded and produced by firms with market power. It is shown here that for a certain range of human capital levels, exposure to free trade, instead of resulting in de-industrialization, can raise welfare through an improvement in the quality of domestically produced industrial goods.     

Integrating public demands into model-based design for multifunctional agriculture: An application to intensive Dutch dairy landscapes

The contribution of agriculture to the welfare of society is determined by its economic, social and environmental performance. Although theoretical discussions can be found in the literature, few reports exist that integrate the social demand for multifunctional agriculture in the evaluation of the sustainability and the global welfare of society. This paper presents a methodology that combines economic valuation, integrated modelling, stakeholder analysis, and multi-criteria evaluation. It consists of three steps to determine: (1) social demands for multifunctional agriculture; (2) feasible technical alternatives available from the supply part of the market; (3) the net utility of alternatives for society measured as the change in social net benefit, i.e. the sum of changes compared to the current situation expressed in utility of market and non-market net benefits. Market net benefits are represented by their monetary value. Quality Function Deployment combined with Analytic Network Process (QFD/ANP) were used to estimate the non-market net benefits. The methodology is applied to the case study of a dairy-farming based agricultural landscape in the Northern Friesian Woodlands, The Netherlands. Social net benefit depended on land use, i.e. pasture management regimes on each of the agricultural fields and on presence or absence of hedgerows around the fields. Changes in market net utility were expressed in terms of changes for farmers, consumers and government. Changes in non-market net utility were expressed in terms of changes in landscape quality, nature value and environmental health for Dutch society as a whole, as estimated from European public surveys (Eurobarometer). The complete solution space defined by the market and non-market net benefits of landscapes with alternative patterns of land use was estimated to offer insight in the trade-off between market and non-market performance and enable selection of ‘icon’ landscapes to target or avoid. Improvement of the current landscape towards the social optimum would involve changes in pasture management resulting in higher gross margin for farmers, slightly relaxing current environmental restrictions, which could be reached at lower levels of subsidies in agri-environmental programs. In addition to such overall optimum the results demonstrate the trade-off between market and non-market benefits and the characteristics of current, utopian and dystopian landscapes. The approach provides an alternative to current economic valuation methods which focus on assessment of economic value as an input to analysis. Here, economic value emerges as the trade-off between market and non-market functions which is an output of the analysis.