intergenerational equity and sustainability abstract this paper explores the limitations of conventional economic analysis of intergenerational problems and examines some of the alternatives suggested in the literature it is argued that proper consideration of future generations has at least three requirements first when future costs and benefits are considered it should be taken into account that they are to be enjoyed by different generations second the sustainability requirement should be adopted this represents an equity commitment to the future and implies the recognition that future generations have the right to nondeteriorated ecological and economic capacity the paper studies the ways in which the recognition of these rights might be incorporated into economic evaluation and management third an appropriate institutional network to enforce the recognition of these rights in decision making processes should be constituted its design and necessary functions are also analyzed

the environmental economic impact of woodland a two stage hedonic price model of the amenity value of forestry in britain woodland is an important part of the environment providing economic benefits through its use in commercial timber production and through its value as an amenity as well as providing recreation for visitors woodland is also important to local residents for whom it provides leisure opportunities and a source of aesthetic enjoyment it is well known that the price of a house may reflect a household s willingness to pay to live near an environmental amenity such as a forest and to gain access to it the nature of this relationship may be examined by applying the hedonic price technique an econometric method which investigates house prices and the variation in structural and environment characteristics over space this study uses a two stage hedonic price model to explore the impact of forest type on house price and to estimate the demand for broadleaved woodland for a sample of houses adjacent to forestry commission land

stationary multi choice bandit problems this note shows that the optimal choice of k simultaneous experiments in a stationary multi armed bandit problem can be characterized in terms of the gittins index of each arm the index characterization remains equally valid after the introduction of switching costs

tourism welfare and de industrialization in a small open economy this paper investigates the effects of an expansion of tourism on welfare output and factor prices in the host country using a general equilibrium international trade model in the absence of taxes foreign ownership and distortions an increase in foreign visitors will increase welfare only if the price of nontradables increases factor mobility and foreign ownership tend to reduce the gains from tourism while commodity taxes tend to increase them conditions under which an increase in tourism can lead to deindustrialization are also discussed copyright 1991 by the london school of economics and political science

externalities expectations and pigouvian taxes this article derives pigouvian type corrective measures for reciprocal externalities when non nash behavior characterizes the participants these reciprocal externalities may involve various kinds of environmental pollutants such as acid rain a comparison between corrective measures for nash and non nash behavior demonstrates that positive conjectures regarding the other agent s externality generating activity have an expectation internalizing influence that usually reduces the required corrective measures negative conjectures e g free riding expectations however have an expectation externalizing effect that increases the required corrective measures the article analyzes both two person and n person externalities 13 references 3 figures 1 table

pigovian taxes which work in the small number case abstract an appropriately conceived pollution tax can achieve a pareto optimal equilibrium which is 1 stable in the presence of myopia 2 not subject to strategic manipulation even in the small number case and 3 resistant to inefficient cost shifting by the participants when transaction costs are low a considerable amount of confusion in the literature exists because different authors use different tax formulas often implicitly and different assumptions regarding conjectural behavior some of this confusion is cleared up by formally presenting various pigovian tax formulas explicitly considering whether there is cournot or stackleberg behavior and comparing the properties of the various configurations

a micro analysis of business travel demand this study tests two hypothesis 1 that tax deductibility and the dual benefit nature of goods on the business pleasure borderline increases the demand for business travel and 2 that this dual benefit decreases price elasticity the study uses expenditure microdata and contrasts the behaviour of business travellers and pleasure travellers both groups are assumed to have indentical tastes but the expenditure behaviour of business travellers is modified by the role of the business trip as a factor of production the linear expenditure system les allocation model is applied to expenditures on individual goods at a particular tourist destination business travellers are shown to have higher expenditures than pleasure travellers for food lodging and local transportation minimum quantities estimated by the les are also higher for business travellers uncompensated price elasticities of business travellers are significantly smaller than that of pleasure travellers for local transportation clothing a

evolving market structure an ace model of price dispersion and loyalty we present an agent based computational economics ace model of the wholesale sh market in marseille two of the stylized facts of that market are high loyalty of buyers to sellers and persistent price dispersion although it is every day the same population of sellers and buyers that meets in the same market hall in our ace model sellers decide on quantities to supply prices to ask and how to treat loyal customers while buyers decide which sellers to visit and which prices to accept learning takes place through reinforcement the model explains both stylized facts price dispersion and high loyalty in a coevolutionary process buyers learn to become loyal as sellers learn to o er higher utility to loyal buyers while these sellers in turn learn to o er higher utility to loyal buyers as they happen to realize higher gross revenues from loyal buyers the model also explains the e ect of heterogeneity of the buyers we analyze how this leads to subtle di erences in the shopping patterns of the di erent types of buyers and how this is

the value and applicability of bargaining in an intergenerational setting abstract this paper considers the effectiveness of a variation of coasian bargaining as a policy instrument for internalizing one or multiple intergenerational externalities the variation involves appointing a contemporary party to represent the interests of the affected parties who are currently unable to represent themselves potential criticisms of such a policy are considered and addressed and precedents to such a policy are put forth to test the value of such a policy a two period model in which two externalities exist in the production consumption decisions and with representative agents is used to compare the welfare effects of four scenarios 1 agents in each period optimize their period specific utility 2 a benevolent social planner chooses allocations in both periods to maximize a social welfare function 3 the externalities are internalized using a bargaining policy and 4 the externalities are internalized using a tax and subsidy policy i find that contrary to general consensus in the literature coasian bargaining can be adapted in such a way as to make it applicable in an intergenerational framework

sustainability in natural resource management abstract sustainability is the objective that many disciplines indicate as being essential to the resolution of environmental degradation although there is no agreement about what this term exactly means this study defines environmental problems as externalities most of these occurring between different generations we analyze the reasons why traditional solutions for externalities do not work in the intergenerational context our conclusions are on the one hand that traditional methods for evaluating the costs and benefits affecting different generations should be improved secondly an intergenerational redistribution of natural resource property rights is essential to guarantee equality of opportunities for all generations and therefore to ensure sustainability adequate redistribution of property rights will depend on the type of resource as well as on other factors such as the rate of return on its exploitation and the current generations propensity to consume in all cases however sustainability is sufficiently guaranteed by conceding property rights as a whole to the future

an overlapping generations model with exhaustible resources and stock pollution this paper analyzes the nexus between resource exhaustion and pollution externality using an overlapping generations framework where each generation lives only for a finite period for a finite horizon model with production where there are many agents per generation the pareto inefficiency arises due to lack of intragenerational coordination and is propagated across generations the tax rates necessary for correcting this externality are characterized we also derive a modified hotelling rule according to which the equilibrium resource price rises slower than the rate of interest in order to account for the damages due to the pollution stock generated by the resource used for the case where the externality induced damage acts on production rather than the utility function pareto inefficiency is shown to persist even when there is intragenerational coordination

tourism in the gambia some issues in development policy abstract the paper deals with a number of issues arising from the design and implementation of tourism policies and programs in the gambia it gives a description of tourism in the gambian economy and discusses the reasons for success in this sector a number of recommendations are put forward related to the need to increase earnings from tourism and to reduce the incidence of black markets the overall conclusion of the paper is that a shift toward more cautious and flexible policies would benefit the tourism sector in the gambia and thus make the programs intended to assist this sector more effective it is on that basis that the country will attract more foreign tourists and improve the standards and quality of products the programs must also be executed in a careful sensitive and planned manner that ensures the cooperation of the local communities

demand elasticities of tourism in singapore abstract in 1983 the un economic and social commission for asia and the pacific set up a study to investigate the relationship between prices of tourist goods and tourist inflow in singapore the analysis was carried out on a world level using amalgamated data for 15 nations also individually for each of the five major tourist generating countries determinants of demand considered were income exchange rates shopping and hotel prices and local disturbances tourism demand is found to be highly income elastic whereas effects of prices and exchange rate movements vary between countries two out of three disturbance factors significantly reduced demand

payoff assessments without probabilities a simple dynamic model of choice abstract we develop a model which reflects the tendency of people to simplify the decision problems they face the decision maker chooses among alternate strategies only on the basis of the payoff she assesses she would obtain from them and these assessments do not explicitly take into account her subjective judgements regarding the likelihood of alternate states of the world at each stage the decision maker chooses the strategy that she assesses to give the highest payoff she updates her assessments adaptively we show that such behavior leads to maxmin choices we also consider the decision maker who experiences shocks journal of economic literature classification numbers c7 d8

consumer behaviour theory and empirical evidence a survey this survey is designed to emphasize the relationship between empirical a nd theoretical considerations in the analysis of consumer behavior a lthough it focuses primarily on analysis at the individual or micro l evel it tries where possible to draw implications for the estimati on of aggregate relationships the importance of micro level analysis stems from the rapid expansion in available panel and survey data se ts this development has generated its own theoretical and empirical issues many of which are raised in this survey copyright 1988 by royal economic society

concentration potential entry and performance in the airline industry airline markets do not satisfy the theoretical conditions for perfect contestability and theory does not indicate which deviations from perfect contestibilty significantly affect performance thus the effect of potential entry on performance in airline markets is explored empirically the best model for explaining fares is found to be one in which the measure of market concentration takes into account not only the number and size distribution of incumbents but also the number of potential entrants not significantly disadvantaged due to economies of scale and scope the hypothesis that all city pair markets are perfectly contestable is rejected coauthors are richard l johnson andrew s joskow gregory j werden and michael a williams copyright 1989 by blackwell publishing ltd

the intergenerational case of missing markets and missing voters a simple game formulation is used to examine the possibility of linking generations when a future generation will confront a risk that can be alleviated by an earlier generation s investment an insurance market will function provided that the overlapping generations are sufficiently near in time and share risks without propinquity or shared risks there is a need for intervention to overcome the problems of missing markets and missing voters this intervention should take the form of minimum environmental standards based on a notion of sustainability that is constitutionally enforced

experience as a barrier to contestability in airline markets contrary to one of the predictions of the contestability hypothesis price in deregulated u s passenger airline markets is related to actual competition from diversifying former intrastates and newly established carriers more important former intrastates have a larger impact on price than do newly established firms a result consistent with these markets being imperfectly competitive because of an industry experience barrier to entry unlike actual competition a measure of potential competition has no effect in constraining price copyright 1989 by mit press

potential competition in the deregulated airlines using a new and unique data set this paper applies a systems approach to the study of potential competition prices and entry relations in airline city pair markets consistent with limit pricing models future entry is directly influenced by current prices current prices thus appear to provide an important signal to potential entrants about the probability of profitable entry while results indicate the existence of barriers to entry these barriers appear to have no independent effects on price beyond there effect on actual competition through increases in concentration copyright 1990 by mit press

the ubiquity of room taxes abstract this article examines the case for the imposition of room taxes and attempts to explain their ubiquity the room tax is analysed using the main criteria for assessing taxes and is compared to property tax the extent of room tax imposition is surveyed and the possibilities of evasion are discussed

a ricardian excursion to bermuda an estimation of mixed strategy equilibrium while there is a rich theoretical literature on mixed strategy equilibria there has long been doubt with regard to the actual prevalence of scuh equilibria the objective of this paper is to empirically demonstrate a mixed strategy equilibrum in a model of ricardian rent generation the oligopolistic resort hotel industry in bermuda is used as the illustrative case

on the behavior of proposers in ultimatum games we demonstrate that one should not expect convergence of the proposals to the subgame perfect nash equilibrium offer in standard ultimatum games first imposing strict experimental control of the behavior of the receiving players and focusing on the behavior of the proposers we show experimentally that proposers do not learn to make the expected payoff maximizing offer second we put the experimental data into perspective by considering a range of learning theories from approximately optimal to boundedly rational these theoretical benchmarks explain that the lack of convergence to the minimal offer is an inherent feature of the learning task faced by the proposers

entitlements missing markets and environmental uncertainty reply abstract at one level dore and ward seem intent on immunizing received doctrine they say that i did not prove that rights violated nozick s principles of justice and that i did not prove that missing markets were the problem more telling they allege i did not prove that my story was better than the particular story favored by dore and ward that is they argue that there is an alternative approach based on the theory of public economics which is indeed operational 3 they then use the bulk of their comment to explain and defend this alternative model they hope to convince the reader that the model of public economics survives intact in the face of my alternative model to the extent that their model allows one to define the problem away it is not difficult to see why they find it so compelling more seriously dore and ward fail to make a coherent argument about the concept of rights and duties and the logic of a particular rights structure that happens to prevail they seem concerned that my article was tampering with some sacred social construct the status quo rights structure and that my article threatened the received wisdom of both public economics and paretian walrasian bliss indeed theirs seems to be a genuine fear that if economists release their grip on the certitude of received orthodoxy the floodgates will be open to all manner of bumbling regulators seeking to shift rights and wealth positions across generations my article is apparently threatening because it seems to suggest that the received wisdom may at times be misleading

determinants of demand for international tourist flows to turkey abstract this article describes the development and findings of a set of models used to identify the most important of the following selected variables influencing international tourist flows to turkey per capita income relative prices relative exchange rate promotional expenditure the turkish government has invested a substantial amount in promoting foreign tourism and special events eg political unrest the demand for travel was measured both by the number of tourists and by the total tourist expenditure data were obtained from secondary sources and analysis was by least squares multiple regression income price and exchange rate were found to be important factors but the impact of promotional expenditure was minimal

tourism and economic development a survey this article surveys the literature on tourism and economic development identifying the contribution that tourism can make to development including foreign currency income and employment and the costs that it entails single equation and system of equations models for estimating tourism demand are provided indicating developing countries potential to benefit from increasing expenditure on tourism but their susceptibility to deterioration in price competitiveness the main sectors of tourism supply transportation tour operators travel agents and accommodation are examined and the importance of cross country integration between firms is highlighted the article argues that many of the problems associated with the use of environmental resources for tourism stem from market failure and it considers methods for increasing sustainably the returns from them

taxing tourism in developing countries abstract although tourism is an important industry in many developing countries where tax revenues are often in short supply surprisingly little attention has been paid to the taxation of the tourist industry this paper argues that in principle there is a strong economic case in many but not all countries for taxing tourism more than at present but that the nature of the industry and administrative difficulties severely limit what can be done in practice this analysis and a review of the fiscal instruments available to most developing countries suggest three main conclusions first more attention should be paid to introducing adequate charging policies where possible second special taxes on hotel accommodation are generally the key to tourist taxation and third there is little reason to provide special incentives for investment in the tourist industry

international tourism and export instability export diversification has been suggested as a strategy for decreasing the level of export earnings instability which is experienced by many developing countries in recent years the international tourism sector has made an increasingly important contribution to the economies of many low income countries this article examines whether diversification into the non traditional tourism sector has succeeded in decreasing the instability of export earnings it was found that although tourism has the advantage of high growth rates and is a major source of foreign currency receipts earnings from international tourism did not bring about a significant decrease in the instability of export earnings of most of the developing and industrialised countries considered furthermore a net increase in the instability of earnings from tourism and merchandise exports occurred in a number of countries and may be a particular problem in small open developing economies

information and the coase theorem abstract some economists think the coase theorem implies a lot about the proper scope of government intervention in the economy and about the welfare consequences of laissez faire others see it as a mere tautology that if people negotiate efficiently then every outcome will be efficient the coase theorem is important only if we believe that efficient negotiation is likely of course we can attribute inefficiencies to bargaining imperfection but it may not be useful to do so such attitudes sometimes seem to depend more on ideology than on reason this article gives one economist s reasoned view it discusses the coase theorem as a decentralization result and why decentralization results are interesting it considers mechanism design for revealing private information and describes the problems of centralization should the coase theorem should be viewed as a second best result property rights are more efficient than some reasonable alternative does the coase theorem recommend an institution or make

combining farrell frontier and hedonic travel cost models for valuing estuarine quality a 1992 survey of tennessee anglers was used to determine who is fishing and how often the species they fish for and how anglers perceive the regulatory structure the results are based on telephone interviews with 450 active licensed an glers nearly 81 of the anglers visited a tennessee reservoir in 1992 while 41 fished warm water streams 28 farm ponds and 22 trout streams over 60 pre ferred separate regulations for reservoirs active reservoir fishermen were more likely to support individual regulations the participants were evenly split on whether a proposed regulation which has public support should be imposed even if the manage ment agency does not feel the fishery would benefit eighty percent of the anglers indicated that existing fishing regulations were not complicated proc annu conf southeast assoc fish and wildl agencies 47 767 774 proper administration of fishery resources requires management authorities to have knowledge of the angler population served by the management agency specifically authorities should be aware of the type and intensity of angler activi ties and understand angler preferences concerning existing and proposed management alternatives to the degree that certain types of fishermen are less likely to support management policies authorities should target educational pro grams specifically at non supportiv e anglers to gain greater public support for biologically viable management strategies this study uses data gathered from a survey of tennessee anglers to deter mine who is fishing and how often the species they are targeting and how anglers perceive the regulatory structure we report the demographic factors of anglers which exhibit statistically significant relationships to angler support for the current

conservationist government policies and intergenerational equity in an overlapping generations model with renewable resources abstract this paper shows that in overlapping generations models incorporating renewable natural resources competition may lead to perpetually declining living standards in environments in which it is technically feasible to achieve intergenerationally equitable distributions of consumption first and second best conservationist government policies are examined these include forced nationalization of the entire stock of natural capital government open market purchases and sales of natural capital taxation of industrial use of resources and subsidies to private investments in natural capital

an econometric study of tourism demand the aids model of us and european tourism in mediterranean countries the almost ideal demand system aids model was used to estimate tourism expenditure allocation by us and west european countries among a range of mediterranean destinations the approach has the advantage of an explicit basis in consumer expenditure theory and by modelling the changes in the budget shares of expenditure among destinations provides new information relative to that provided by the traditional single equation approach the estimated model was econometrically satisfactory although symmetry and homogeneity were rejected in line with the findings of past studies of consumer demand the expenditure elasticities demonstrated considerable differences in tourism demand preferences between origin countries and between traditional and newly developing destinations the own and cross price elasticities indicated the importance of effective prices in determining the allocation of expenditure among destinations

estimation of tourism demand by multivariable regression analysis evidence from kenya abstract between 1963 and 1982 tourism was one of the top three domestic exports of kenya knowledge of the variables which significantly influence kenyan tourism demand could help tourism policy makers in planning growth strategies the results of this study indicate that multivariable regression analysis has limited usefulness in identifying the significant factors which influence tourists decisions data problems and resulting multicollinearity cause unsuitable results in one case while model specification appears to be a problem in another the author concludes that quantitative studies should be supplemented by qualitative analysis in order for kenyan policymakers to make optimal decisions

comparing benefit estimates from travel cost and contingent valuation using confidence intervals for hicksian welfare measures an approach to determining whether benefit estimates derived from the travel cost method and contingent valuation method are statistically different is presented unlike past comparisons compensating variation is estimated for both methods benefit comparisons are made more rigorous by use of confidence intervals which are developed using the same krinsky and robb simulation technique for both valution mothods the techniques are applied to deer hunting in california while point estimates of benefits from both truncated and untruncated adjusted travel cost methods are lower than the contingent valuation method the confidence intervals on the untruncated travel cost method do overlap the contingent valution method benefit estimates

intergenerational resource rights efficiency and social optimality the discipline of economics is generally defined as the science of the allocation of scarce resources between competing social objectives given an initial distribution of resources between economic agents how would they behave so as to improve their welfare according to the pareto criterion the agents would exchange commodities until the opportunities for fruitful exchange were fully exhausted and no agent could be made better off without rendering at least one other agent worse off pareto efficiency is a powerful concept in microeconomic analysis provided that the initial distribution of property rights is equitable allocative efficiency gives rise to the best of all possible worlds acknowledging that the assumptions of perfect competition are often violated firms are monopolistic information is incomplete and externalities exist economists have argued for the modification of institutions so that economic reality will conform more closely to the assumptions of the model that yields such gratifying results but microeconomic theory has always maintained that allocative efficiency is in itself insufficient to maximize social welfare bator 1957 a social welfare function is required to discriminate a social optimum among the array of efficient allocations that correspond to alternative assignments of property rights though economists have posited alternative functional forms for the sake of pursuing conceptual arguments welfare functions have remained elusive constructs for well known theoretical and practical reasons consequently a sharp line of demarcation has been drawn between questions of efficiency the province of economics and equity the principal focus of ethical and political discourse in resource economics however the line demarcating efficiency and equity is often crossed the term optimal depletion appears regularly where only efficient depletion is meant while political debates about resource exploitation over time are laden with questions of the proper distribution of our natural patrimony between generations resource economists have predominantly espoused particular use rules that guarantee efficiency but overlook potential improvements in social welfare achievable through the reassignment of property rights across generations we document the evolution and current status of the misuse of the term optimal depletion in section ii we develop a simple two generation three period general equilibrium model in section iii to illustrate how alternative distributions of resource rights between generations relate to alternative pareto efficient solutions in section iv we demonstrate how different social welfare functions affect the optimal solution and associated assignment of resource rights between generations

an applied general equilibrium analysis of the economic effects of tourism in a quite small quite open economy a computable general equilibrium model is used to project the effects of tourism on the industrial and regional structures of the australian economy the most striking conclusion is that queensland usually thought to be the most tourism oriented of the australian states would be a net loser from an economy wide expansion of tourism as well as having a relatively large share of its gsp accounted for by tourist oriented activities queensland is also relatively heavily dependent on agriculture and mining traditional export sectors which are crowded out by the expansion of international tourism

tourism as a factor in development cooperation abstract where there is little or no industrial or agricultural base and no exploitable resource tourism may make a significant contribution to the economy of a developing country the eec provides aid to developing countries in three areas the southern mediterranean asia and latin america and africa the caribbean and the pacific the commission has produced guidelines for drawing up proposals and a typical example is presented in this article the eec also supplies high quality expertise to help define policy options and strategic plans and carry out agreed programmes long term success is more likely for specialized high income projects