adoption of new tobacco varieties in greece impacts of empirical findings on policy design abstract greece is a major international tobacco producer flue cured tobacco varieties constituted the major alternative crop to greek farmers growing certain oriental tobacco varieties diffusion of flue cured tobacco was rapid due to its high yields and the depressed market for certain oriental tobacco varieties currently the common organisation of the tobacco market is undergoing substantial changes and the farmers response will be a vital factor of success a portfolio selection model reveals that the major factors influencing the adoption decision of tobacco growers are the size of the farm measured in annual work units the farm s proximity to urban centres the farm s diversification and the farmer s age the number of contacts with institutions is surprisingly inversely related to adoption future tobacco policies impinging on factors influencing decisions to adopt new varieties or production practices may be more cost effective

natural resources curse or blessing are natural resources a curse or a blessing the empirical evidence suggests that either outcome is possible this paper surveys a variety of hypotheses and supporting evidence for why some countries benefit and others lose from the presence of natural resources these include that a resource bonanza induces appreciation of the real exchange rate deindustrialization and bad growth prospects and that these adverse effects are more severe in volatile countries with bad institutions and lack of rule of law corruption presidential democracies and underdeveloped financial systems another hypothesis is that a resource boom reinforces rent grabbing and civil conflict especially if institutions are bad induces corruption especially in nondemocratic countries and keeps in place bad policies finally resource rich developing economies seem unable to successfully convert their depleting exhaustible resources into other productive assets the survey also offers some welfare based fiscal rules for harnessing resource windfalls in developed and developing economies

the concept of natural capital the natural environment is now commonly viewed as a form of capital asset or natural capital also included are ecosystems that provide important goods and services to the economy managing natural capital has consequences for sustainable development however there are contrasting weak versus strong sustainability views which in turn have implications for green accounting natural resource based sovereign wealth funds have emerged as key financial instruments for compensating resource depreciation with greater economy wide investments recent scientific evidence recommends demarcating safe operating spaces to limit exploitation of critical global biophysical subsystems or processes these challenges suggest that the concept of natural capital is pivotal to sound policy

measuring natural capital towards accounts for the uk and a basis for improved decision making the paper describes the ongoing project begun by the uk office for national statistics and the department for the environment food and rural affairs in 2011 to compile comprehensive natural capital accounts for the uk it describes the basis on which the accounts have been constructed discusses key issues which have arisen and presents the results to date it also sets out how restoration accounts for individual projects can not only facilitate conventional cost benefit analysis but also add to relevant material for decision makers more widely the paper describes how natural capital accounts can underpin well based decision making for example in implementation of the uk government s new 25 year plan for the environment in addition by providing information on one of the missing capitals such accounts can augment analysis of the behaviour of the economy generally

post reform forestland markets in china land markets developed rapidly in china after agricultural land tenure reforms but not after forest reforms we surveyed farmers in three provinces to examine the post reform forestland markets and options to strengthen them using household choice experiments we estimate land market demand and supply under alternative contractual arrangements our findings are consistent with the currently thin markets but also suggest that alternative institutional and contractual conditions could support broader participation in land markets strengthening property rights on forestland emerges as an especially effective possible policy instrument we illustrate its predicted effects on equilibrium rental rates and market participation

the proportional solution for economies with both private and public ownership abstract we ask how should a planner whose job is to respect public ownership of some productive assets in conjunction with private ownership of some inputs allocate resources we call our proposal the proportional solution it is characterized by the requirement that the final allocation be pareto efficient and by the condition of equal returns to the use of privately owned inputs we discuss this idea in a publicly owned firm a cooperative and a common pool resource our main result is the existence of proportional solutions in general convex economies journal of economic literature classification numbers d50 d51 d62 l32 h23 h82 p13

the household responsibility system in china s agricultural reform a theoretical and empirical study the emergence and eventual prevalence of the household responsibility system which replaces the production team system as the unit of production and income distribution has brought about dramatic changes in china s rural areas since 1979 this institutional change has resulted in remarkable growth in agricultural productivity however in the literature on collective farms a theory that is capable of explaining the causes and effects of this change is yet to be developed the formal theory about collective economies developed so far by ward domar sen oi and clayton bradley maurice and ferguson cameron bonin chinn israelsen putterman and others suggests that the allocation of resources in a collective farm is efficient at least in

land rental development via institutional innovation in rural jiangsu china previous studies have demonstrated that there are two important preconditions for encouraging land rental in agriculture out migration and the enhancement of security and transferability of land rights focusing on the latter we scrutinize the impacts of institutions aimed at facilitating land use dynamism particularly the rural shareholding cooperatives rscs which have been established recently at the local level in rural china in general we find that rscs can pave the way for the extension of property rights to farmland and promote more efficient land use patterns using survey data collected from 300 village committees in rural jiangsu province we estimate the effectiveness of rscs in encouraging land rental our analysis reveals that rscs can serve as intermediate agents for reducing transaction costs associated with exchange of land use rights and thereby not only encourage land rental consolidation activities but also enable the entry of non farm household entities into the farm business

a policy agenda for pro poor agricultural growth abstract sub saharan africa and parts of south asia are likely to hold large numbers of very poor rural people into the foreseeable future although both history and theory suggest a pre eminent role for agricultural growth in poverty reduction in poor agrarian economies such growth today faces new difficulties many of these difficulties are endogenous to today s poor rural areas others result from broader processes of global change but some are due to changes in the dominant policy environment emphasizing liberalization and state withdrawal examination of 20th century green revolutions suggests that active state interventions were important in supporting critical stages of agricultural market development unfortunately such interventions benefits in institutional development are easily overlooked whereas their high costs are much more visible policy implications are discussed

public ownership of the external world and private ownership of self liberal political philosophy represented classically by john locke and today by libertarians defends great inequality of economic outcome on the basis that people own themselves and are entitled to establish private property in the external world by virtue of that self ownership contemporary nonlibertarian political philosophers such as john rawls and ronald dworkin achieve their relatively egalitarian conclusion by effectively denying self ownership as a premise an alternative challenge to liberalism which does not take the radical starting point of denying self ownership is to declare that while certain rights to benefit by virtue of superior skill should be protected a degree of self ownership productive assets in the external world be viewed as publicly owned and not privately appropriable what allocation mechanisms on a space of possible economies satisfy axioms that are necessary to guarantee both private ownership of self and public or joint ownership of the external world we propose a

endowments technology and factor markets a natural experiment of induced institutional innovation from china s rural reform the induced institutional innovation hypothesis postulates that new institutions are innovated to exploit profitable opportunities arising from institutional disequilibrium the removal of legal restrictions on factor market exchanges after recent reforms in china resulted in institutional disequilibrium this paper utilizes data from a household survey in china to explore i the relationship between the emergence of land labor and rental markets in a region and the distribution of factor endowments across rural households in that region and ii the impact of hybrid rice on the emergence of factor markets in that region the results are consistent with the induced institutional innovation hypothesis

positive freedom markets and the welfare state the comparative merits of market and certain distinguished non market resource allocation mechanisms have continually been at the centre of debate in economics and political philosophy doubtless it will remain there for here one faces the grandest of human concerns embracing as it does issues bearing on liberty and welfare the aspirations of people their potential and re alized capabilities and the fulfillment of their needs it enables us to see individuals in a social context to ask about the possible features of a civil society the obligations that people may have to themselves to one another and to agencies then again we are able to enquire into the obli gations that agencies have to people and to one another the extent to which responsibility needs to be delegated among offices and persons the role that dispersed information may play in an swers to these and so on the debate is central to any discussion of the kind of society we ought to aspire to be members of

the diversity of land markets and regulations in europe and some of its causes abstractthe creation of optimal land institutions attracted renewed attention in the 1990s because of its central role in the transition process in former communist countries in the former soviet union and eastern europe and more recently because of large scale land investments in developing countries this article documents the existence of large variations in land institutions markets and regulation using current and historical data from western and eastern europe it then offers explanations for these differences and draws implications for the role and optimality of land institutions in development with special reference to the current debate on large scale land acquisitions

land tenure choice in chinese villages the rational versus the political model the rational and political decision models are developed and tested for the land tenure choice in rural china a novelty of the test is to link the collective decision with general relative factor scarcities competing hypotheses are developed for the two models and tested with panel data collected on 83 chinese villages the results show that neither model is strongly rejected although the political model fares slightly better in more sophisticated econometric testing this suggests that popular political participation is emerging in chinese villages implications of this finding to chinese land policy are discussed

unconventional adjustment strategies for rural households in the less developed areas in greece abstract international competition in agricultural production is intensifying following the implementation of the 1993 accord of the general agreement on tariffs and trade the production of conventional farm products in surplus is being discouraged by means of indirect economic disincentives the common agricultural policy has already adjusted to unprotected national markets within the european union and greater market orientation is being achieved mainly through price reductions farmers in the less developed areas in greece where agricultural activity is still the main source of income and employment have been responding to policy reforms by seeking part time employment and income in non farm enterprises the adoption of alternative unconventional farm enterprises that use farm resources in an innovative and quantitatively different way does have the potential for bringing in a new source of income to farm business for the purpose of this research three adjustment strategies were recognised the conventional no change pathway is based on traditional region specific products production methods and services the adoption of the new crop pathway refers to the redeployment of resources into new agricultural products whereas farms on the market integration pathway redeploy resources into new marketing services and agricultural product processing on the farm the new crop and the market integration pathways are identified as unconventional adjustment strategies results derived from multinomial logit analysis highlight the major constraints and opportunities associated with the adoption of new crops and market integration practices farmers who have adopted unconventional practices are influenced by factors external to the farm such as contacts with institutions and have a high probability of having higher debts these farmers are likely to depend heavily on seasonal labour and rented land the fact that market integration activities are associated with smaller farms in conjunction with off farm work signifies the importance of establishing an integrated rural development policy approach public policy involvement in enhancing dissemination of information concerning unconventional enterprises is emphasised

household resources transaction costs and adjustment through land tenancy this paper examines the role of household endowments of imperfectly tradeable factors of production e g male female child labor and draft animals on land leasing an explicit attempt is made to account and test for the role of transaction costs on the incidence and extent of adjustment taking place through the land lease market the econometric model is implemented using pooled data from six villages in the semiarid region of india the results confirm the significant role of nontradeable family endowments and indicate the presence of frictions in the land tenancy market

the household responsibility system reform and the adoption of hybrid rice in china abstract this paper studies the diffusion of hybrid rice before and after the recent institutional change from the collective team system to the household based farming system in rural china a simple model which treats the adoption of hybrid rice as a portfolio selection problem is presented the model is tested against time series cross county data collected from hunan province in south china the empirical evidence suggests that 1 adoption behavior in the collective system was not consistent with the predictions of the theoretical model this evidence indicates the existence of administrative intervention in influencing production decisions in the collective system 2 there was a significant change in the structure of the adoption function following the transition from the collective system to the household based system and 3 adoption behavior in the household system is consistent with the predictions of the theoretical model

the integration of natural capital into development policies in response to the united nations sustainable development goals there has been a rising awareness of the need to address simultaneously the preservation of natural capital stocks and poverty alleviation at multiple scales focusing on tropical forest rich developing countries the article overviews the extent to which natural capital considerations are integrated into existing development policies and interventions the review finds that the explicit consideration of natural resources is left out of many commonly applied development interventions leading to suboptimal and unsustainable outcomes the interventions that do tackle both development and conservation goals are often not coordinated and are implemented at a site by site basis without providing the socially efficient levels of natural capital stocks or ensuring the long term sustainability of the development and conservation impacts bringing in perspectives from development economics environmental economics and applied conservation this article makes the case for a better integration of development and conservation goals in interventions in developing countries and outlines the emerging frontiers for research and policy

the ecology of natural capital accounting natural capital is increasingly widely discussed and included in corporate and governmental accounts using a variety of different approaches and metrics here i argue that natural capital is fundamentally an emergent feature of structures and functions of the natural environment therefore its valuation and metrics for reporting on its condition and the way that it is represented in accounts need to reflect these defining features and not rest solely on measurable flows of goods and services natural capital is an asset and its many contributions to the economy and society often called ecosystem services are both malleable and adaptable their value changes with time and context as they become more or less important and relevant for particular purposes unlike most produced assets natural assets are multifunctional adaptable and resilient and within limits they have the capacity to regrow or reorganize themselves maintaining this capacity is therefore the key priority for a responsible owner or manager of natural assets currently most metrics for natural capital are based on the quality or quantity of flows of goods and services on the geographical distribution of particular ecosystems or land sea uses and by reference to ecosystem services delivered by particular ecosystems the advantages and disadvantages of these different approaches are discussed but i propose instead using the quality of fundamental ecological processes and functions which properly represent the functioning and capabilities of the natural capital system upon which society and the economy depend

this blessed plot when should capital gains on land be regarded as income national balance sheets for a number of advanced economies show land to be a valuable form of natural capital whose value has increased sharply over the last twenty years or so this paper investigates when or whether capital gains on land should be counted as a component of income while development projects can lead to increases in rental rates and land values it is shown that although the benefits any project should be counted as income increases in rental rates and land values should not normally be seen as additional real income however if land benefits from exogenous land saving technical progress the resulting capital gains can be seen as income applying the same principle to human capital it is shown on a steady growth path that these capital gains are equal to weitzman s 1997 growth premium in the relationship between income and sustainable consumption

tenancy and family resources a model and some empirical analysis abstract in this paper we discuss with the help of a simple model the role of family resource endowments in determining the extent of land leased in or leased out by a household this becomes important when the market for some of these resources is either not functioning at all or is functioning imperfectly we focus on three such resources which have some relevance in indian agriculture these are 1 the family s managerial skill 2 its endowment of human labour and 3 its endowment of draft animal labour household level data from six villages of maharashtra and andhra pradesh are also utilized to test some of the hypotheses

a review of the stern review on the economics of climate change the stern review calls for immediate decisive action to stabilize greenhouse gases because the benefits of strong early action on climate change outweighs the costs the economic analysis supporting this conclusion consists mostly of two basic strands the first strand is a formal aggregative model that relies for its conclusions primari ly upon imposing a very low discount rate concerning this discount rate aspect i am skeptical of the review s formal analysis but this essay points out that we are actual ly a lot less sure about what interest rate should be used for discounting climate change than is commonly acknowledged the review s second basic strand is a more intuitive argument that it might be very important to avoid possibly large uncertain ties that are difficult to quantify concerning this uncertainty aspect i argue that it might be recast into sound analytical reasoning that might justify some of the review s conclusions the basic issue here is that spending money to slow global warming should perhaps not be conceptualized primarily as being about consump tion smoothing as much as being about how much insurance to buy to offset the small change of a ruinous catastrophe that is difficult to compensate by ordinary savings

institutional reforms and dynamics of agricultural growth in china abstract the collective farming system the state monopolized procurement and marketing system and the grain self sufficient policy formed in the early 1950s made the rapid development of heavy industries possible in china however they were detrimental to farmers incentives and resulted in a serious misallocation of resources consequently despite sharp improvements in technology and increases in the use of modern inputs grain production in china barely kept up with population growth before the 1979 reform the shift from the collective farming system to the household based farming system in 1979 greatly improved farmers incentive and resulted in a sharp increase of grain output in the early 1980s in the late 1980s grain production stagnated again because the incompleteness of procurement system reform made the production of grain unprofitable for producing enough grain to feed china s ever increasing popualation it is imperative for the chinese government to liberalize the grain procurement and marketing system and to invest in yield improvement research it is also desirable for china to adjust her trade policy and to import more grain for meeting domestic grain demands

land inheritance and market transactions in uganda studies on the role of nonmarket land transactions remain limited this paper addresses two questions is land inheritance driven by underdeveloped land markets how does land inheritance influence land disposal and acquisition we use a switching regression model on household data from rural uganda we find that the initially landless or near landless households due to little or no land inheritance obtain land through land markets while those that are land rich dispose of land through land sales and bequests the results suggest that a process of land equalization is unfolding within the sample

agriculture after brexit the paper considers the impact of the common agricultural policy cap on the uk and sets out three options for a new british agricultural policy after brexit these options are carrying over the subsidy regime with an emphasis on food security and self sufficiency maintaining the cap architecture but shifting more of the cap subsidies away from payments for land ownership towards more spending on environmental schemes and providing public money only for public goods the third option is advocated after a transitional path allows time for farmers to adapt

rural reforms and agricultural growth in china this paper employs province level panel data to assess the contributions of decollectivization price adjustments and other reforms to china s agricultural growth in the reform period decollectivization is found to improve total factor productivity and to account for about half of the output growth during 1978 84 the adjustment in state procurement prices also contributed positively to output growth its impact came mainly from the responses in input use the effect of other market related reforms on productivity and output growth was very small reasons for slowdown in agricultural growth after 1984 are also analyzed copyright 1992 by american economic association

joint ownership of a convex technology comparison of three solutions a given set of agents jointly own and operate a decreasing returns to scale technology with a single input and a single output they all contribute some input and receive some of the output what first best allocation is equitable we discuss three allocation mechanisms the equal benefits solution gives every agent the same benefit computed at the supporting price the equal returns solution equalizes returns output shares input contributions across agents the constant returns equivalent solution gives every agent his indirect utility level at some common price of output relative to input a lower and an upper bound on individual welfares play a key role in these axiomatic characterisation results

individual rationality and voting in cooperative production abstract suppose that a group of individuals owns collectively a technology which produces a consumption good from an input a sharing rule associates input contributions with a vector of consumption we consider sharing rules that are a convex combination of the proportional the equal share and the equal benefit rules we characterize the subset of sharing rules that satisfy pareto efficiency and individual rationality we also study the outcome of majority voting on this subselection of sharing rules

on the endogenous determination of the degree of meritocracy in large cooperatives abstract we consider a cooperative formed by a large number of workers differentiated by their initial endowment of wealth which is both primary input labor and consumption leisure the cooperative is characterized by its wealth distribution and produces a consumption good from labor which allocates among workers according to a convex combination of the proportional and the egalitarian rule in the first stage workers decide this combination by simple majority in a second stage they choose how much labor to provide to the cooperative we find that when in the cooperative s wealth distribution the median wealth is lower higher than the average the degree of meritocracy chosen by workers is lower higher than that of the optimum and coincides with it when both statistics coincide this choice has similar consequences on the cooperative s labor output since it increases with respect to the degree of meritocracy

valuing the invaluable how much is the planet worth this article explores the valuation of natural capital by critically analysing alternative approaches to it it considers the problems associated with applying economic values to natural capital and the limitations of such exercises it examines different methods that are more familiar to accountants than economists of using what is sometimes termed an engineering approach to estimating the costs of maintaining and restoring existing assets it considers the arguments that are used to justify the two in particular it addresses the question of what we are seeking to do by determining the value of natural capital what is the question to which valuation is supposed to be the answer

collectivization and china s agricultural crisis in 1959 1961 the agricultural crisis in china in 1959 61 after the initial success of the collectivization movement resulted in 30 million extra deaths in this paper a game theory hypothesis proposes the main cause of this catastrophe i argue that because of the difficulty in supervising agricultural work the success of an agricultural collective depends on a self enforcing contract in which each one promises to discipline oneself a self enforcing contract however can be sustained only in a repeated game in the fall of 1958 the right to withdraw from a collective was deprived the nature of the collectivization was thus changed from a repeated game to a one time game as a result the self enforcing contract could not be sustained and agricultural productivity collapsed the empirical evidence is consistent with this hypothesis

the development of the land lease market in rural china this paper examines the development of the land lease market in rural china special attention is paid to productive heterogeneity among farmers and the openness of the labor market in activating the land lease market a theoretical model is employed to explore the underlying connections an econometric model is implemented using a two period panel data set gathered in three counties of china s zhejiang province the results show that productive heterogeneity and a freer labor market do promote more land leases the implications for the institutional change literature are discussed

natural capital assets systems and policies natural capital is a concept whose time has come but is in danger of being greenwashed to suit vested interests as has happened to sustainability it is a hard concept based upon assets rather than utility natural capital assets provide the foundations for positive freedom by providing for future generations capabilities and choices this is especially the case for renewable natural capital which can provide nature s bounty forever provided the assets are not driven below critical thresholds natural capital assets lend themselves to accounting to balance sheets and risk registers and require capital maintenance cost benefit analysis being partial and on a project by project basis has a limited role since the natural environment comes in systems and is less amenable to marginal analysis three principles are core to the design of natural capital policies these are public goods with public monies polluter pays and compensation in the form of net environmental gain

corporate natural capital accounting accounting is an important practical mechanism by which corporations are held to account for their performance and impact this is consequential for corporate responsibility for the conservation of natural capital while there is clear evidence of increasing corporate accounting and reporting with respect to aspects of natural capital however such efforts are at best nascent this is in part because the purpose and meaning of corporate natural capital accounting is not in itself well established and in part because existing institutional structures and incentives do not lend themselves to giving a full account of natural capital impact in this context the paper argues that there is essentially a need for natural capital accounting and reporting systems that serve two distinct purposes the first which is the more likely to be satisfied by existing market structures is oriented towards the informational needs of shareholders and is concerned with supporting a transition towards environmentally sustainable business models the second in contrast acknowledges that a shareholder oriented perspective constrains natural capital to be important if and only if its conservation privately affects shareholders which is unlikely to ensure an accounting that contributes to the conservation of natural capital as an end in itself this second purpose of strengthening corporate natural capital accountability is unlikely to be satisfied within existing market structures instead it stands in need of a regulatory solution

the potential of land rental markets in the process of economic development evidence from china abstract we develop a model of land leasing with agents characterized by unobserved heterogeneity in ability and presence of an off farm labor market in this case decentralized land rental may contribute to equity and efficiency goals and may have several advantages over administrative reallocation the extent to which this is true empirically is explored using data from three of china s poorest provinces land rental markets and administrative reallocation reallocate land to those with lower endowments but the former are more effective in doing so and have a bigger productivity enhancing effect information on hypothetical market participation suggests that reducing transaction costs in land rental markets could help to realize significant additional productivity gains

rural industry and labor market integration in eastern china abstract this paper tests the competitiveness of the labor market in a semi industrialized county located in eastern china labor market segmentation is linked to the degree of government interventions and the management structures of the local enterprises and two forms of rationing labeled entrance and time rationing are identified a test based on income maximizing behavior is developed to find the form of rationing that is consistent with the data the results show that the labor market is not competitive and time rationing prevails in the county in addition industrial wages are not responsive to experience and education but strongly biased against women and varying to government interventions

allocation rules for a commonly owned technology the average cost lower bound assume that a set of individuals commonly own a one input one output technology at an average cost pricing equilibrium allocation the consumption contribution ratio is identical among agents and each agent maximizes her welfare given this ratio the following requirement is introduced every agent must be as well off at a selected allocation as at the average cost equilibrium that all agents prefer the paper establishes compatibilities and incompatibilities between this requirement and some traditional requirements finally the new lower bound is combined with properties such as technological monotonicity or contraction independence to characterize mas colell s constant returns equivalent allocation rule

a review of the stern review on the economics of climate change how much and how fast should we react to the threat of global warming the stern review argues that the damages from climate change are large and that nations should undertake sharp and immediate reductions in greenhouse gas emissions an examination of the review s radical revision of the economics of climate change finds however that it depends decisively on the assumption of a near zero time discount rate combined with a specific utility function the review s unambiguous conclusions about the need for extreme immediate action will not survive the substitution of assumptions that are consistent with today s marketplace real interest rates and savings rates

labor migration and returns to rural education in china this paper provides an answer to the following question why do empirical studies find low returns to schooling in rural china and yet the schooling rates are high i find that schooling played a significant role in raising the accessibility of urban formal employment to rural people in the late 1970s and early 1980s in the face of the government s restrictive policy on labor migration from rural to urban areas the large urban rural income difference provided a strong incentive for senior high school education the theory also explains the drop in the senior high school attendance in the mid 1980s

food insecurity income inequality and the changing comparative advantage in world agriculture i would like to argue in this article that in the process of economic development in land poor countries in asia agriculture faces three distinctly different problems food insecurity sectoral income inequality and the declining food self sufficiency associated with the declining comparative advantage in agriculture at the high income stage massive imports of food grains to asia if they occur will aggravate the world food shortage which will have significant implications for the poverty incidence in the world i argue that in order to avoid such a tragedy asia should expand farm size to reduce labor cost by adopting large scale mechanization sub saharan africa should realize a green revolution in grain production and latin america should further expand its grain production capacity

land rental markets in transition theory and evidence from hungary summary this paper analyzes the determinants of household farms participation in land rental markets in transition countries we derive several hypotheses on the impact of households human capital land endowment land quality and prices transaction costs rural credit and labor market constraints our empirical analysis uses data from a representative survey of more than 1 400 hungarian household farms and hungarian official statistics land rental markets reallocate land to households with better farm management capacities households combine buying and renting of land to extend their farms land ownership is fragmented and land consolidation occurs through renting the domination of corporate farms in some regions restricts households access to land

choices and the value of natural capital sustainability requires maintaining opportunities for future generations so they can meet their needs opportunities are passed to future generations through a set of capital assets nature provides an important class of these assets but markets seldom reveal the marginal value of natural capital rather the marginal social worth or asset price must be imputed based on intertemporal exchange in the context of assessing whether intertemporal allocation rules lead to sustainable development appropriate asset prices must be based on the actual allocations and trade offs society makes therefore measuring economic programmes that enable the measurement of asset prices is an important empirical task we review the theory of measuring natural capital asset prices and discuss the key elements of measuring economic programmes that enable the measurement of natural capital asset prices we place the measurement of economic programmes and natural capital asset prices in the context of wealth based sustainability metrics

cooperative production a comparison of welfare bounds in the production model with a one input one output technology we study welfare lower bounds that give a guarantee of welfare to each agent independent of the others preferences we obtain characterizations of egalitarian equivalent allocation rules on the basis of two weak lower bounds in striking contrast with moulin s characterization of the equal budget walrasian solution on a slightly smaller domain with a more demanding lower bound