explaining the border effect the role of exchange rate variability shipping costs and geography this paper exploits a three dimensional panel data set of prices on 27 traded goods over 88 quarters across 96 cities in the us and japan we show that a simple average of good level real exchange rates tracks the nominal exchange rate well suggesting strong evidence of sticky prices focusing on dispersion in prices between city pairs we find that crossing the us japan border is equivalent to adding as much as 43 000 trillion miles to the cross country volatility of relative prices we turn next to economic explanations for this so called border effect and to its dynamics distance unit shipping costs and exchange rate variability collectively explain a substantial portion of the observed international market segmentation relative wage variability on the other hand has little independent impact on segmentation 2001 elsevier science b v all rights reserved

firm level ecosystem service valuation using mechanistic biogeochemical modeling and functional substitutability increasingly private firms are focusing on environmental sustainability however such entities continue to experience difficulty in operationalizing sustainable practices in management decisions for firms that own natural ecosystems part of the difficulty stems from their inability to balance the environmental value of conserving these ecosystems against potential profits that could be captured through their development to overcome this we present a new comparative framework for natural and engineered systems which allows for a rigorous valuation of ecosystem services based on functional equivalence with engineered systems this framework allows for the opportunity of such value to be represented within international accounting standards thus aligning biological ecosystem service valuation with current rigorous accepted accounting norms looking specifically at the removal of phosphorus via wetland we characterize an ecosystem service using a mass balance mechanistic biogeochemical model we then simulate the ecosystem performance under various loading conditions to determine the limit state for which the wetland can perform the service of phosphorus removal in the long term finally using functional substitutability we apply an appropriately scaled price of the engineered equivalent system to determine a market based value of the ecosystem service as a demonstration we apply this methodology to an estuary located in southern california

banking development socioeconomic structure and income inequality abstract using rich unique data from the italian local credit markets provinces this paper investigates the impact of local banking development on income inequality and the role of the socioeconomic structure in this link exploiting the italian historical banking regulation to instrument for the local presence of bank branches we find that local banking development mitigates income inequality however the finance inequality nexus manifests itself only in relatively advanced areas when we study the structural channels of influence we uncover evidence that banking development can reduce inequality by affecting geographical mobility and urbanization while it has modest effects through the development of material infrastructures and human capital

import price elasticities reconsidering the evidence recent economic geography and trade empirical studies based on monopolistic competition suggest high levels of trade price elasticities between 3 and 1 1 however price elasticity estimations in trade equations using unit values as price proxies usually lead to lower values of around unity we show that those inconclusive results may be due to some misspecification in these equations as well as measurement errors in prices when suit able instrumental variables are used within a panel of industrialized countries we obtain high price elasticities the majority ranging from i to 13 the highest estimates correspond to industries producing homogeneous goods jel classification c2 c3 and f 1

the income inequality nexus in a developed country small scale regional evidence from austria abstractthe income inequality nexus in a developed country small scale regional evidence from austria regional studies this paper analyses the relationship between regional inequality and average income in a small scale framework for austria the empirical findings are based on a novel inequality database generated from individual wage tax information at the municipality level this study researches the magnitude of regional spillovers of income and inequality using spatial econometric methods the results show a pronounced positive relation between regional income levels and inequality where especially high income municipalities exhibit a large spread in the income distribution furthermore it shows that higher levels of inequality are associated with income gains at the top of the distribution

inequality and city size between 1979 and 2007 a strong positive monotonic relationship between wage inequality and city size has developed this paper investigates the links between this emergent city size inequality premium and the contemporaneous nationwide increase in wage inequality after controlling for the skill composition of the workforce across cities of different sizes we show that at least 23 percent of the overall increase in the variance of log hourly wages in the united states from 1979 to 2007 is explained by the more rapid growth in the variance of log wages in larger locations relative to smaller locations this influence occurred throughout the wage distribution and was most prevalent during the 1990s more rapid growth in within skill group inequality in larger cities has been by far the most important force driving these city size specific patterns in the data differences in the industrial composition of cities of different sizes explain up to one third of this city size effect these results suggest an important role for agglomeration economies in generating changes in the wage structure during the study period

search sorting and urban agglomeration studies have suggested that urban agglomeration enhances productivity by facilitating the firm worker matching process this article develops a model that formalizes this notion and demonstrates that when firm capital and worker skill are complementary in production urban agglomeration will tend to generate more efficient yet segregated matches as a result not only will local market size be positively associated with average productivity it will also generate greater between skill group wage inequality and a higher expected return to skill acquisition recent data from the counties and metropolitan areas of the united states is consistent with each of these implications

quasi option value some misconceptions dispelled abstract we discuss a couple of important issues in the recent literature on quasi option value we show that the assertion that quasi option value can be negative in a model with independent learning is based on confusion between quasi option value which is always positive and the net benefit of preservation of a natural environment subject to development which is not we also explore the significance of different assumptions about the nature of learning and show that the result that quasi option value is positive is surprisingly robust

ecological economic analysis of wetlands scientific integration for management and policy abstract wetlands all over the world have been lost or are threatened in spite of various international agreements and national policies this is caused by 1 the public nature of many wetlands products and services 2 user externalities imposed on other stakeholders and 3 policy intervention failures that are due to a lack of consistency among government policies in different areas economics environment nature protection physical planning etc all three causes are related to information failures which in turn can be linked to the complexity and invisibility of spatial relationships among groundwater surface water and wetland vegetation integrated wetland research combining social and natural sciences can help in part to solve the information failure to achieve the required consistency across various government policies an integrated wetland research framework suggests that a combination of economic valuation integrated modelling stakeholder analysis and multi criteria evaluation can provide complementary insights into sustainable and welfare optimising wetland management and policy subsequently each of the various components of such integrated wetland research is reviewed and related to wetland management policy

do focus groups and individual interviews reveal the same information for natural resource valuation abstract focus groups and individual interviews have become accepted methods used in the initial stages of valuation research whether focus groups and individual interviews reveal similar valuation information has not been thoroughly studied the research tests the hypothesis that focus groups yield the same ecosystem service information as do individual interviews the research also explores how the focus group and individual interview data might differ the analysis shows that focus groups and individual interviews are not substitutes they yield different information about ecosystem services and resource uses

intra national versus international trade in the european union why do national borders matter the first objective of this paper is to estimate border effects among european union countries in this context the specification of the gravity equation together with the choice of the distance measure are shown to be crucial for assessing the size of the border effect the second objective is to evaluate the determinants of the cross commodity variation in national border effects contrary to previous findings reported in the literature we show that trade barriers do provide an explanation in particular technical barriers to trade together with product specific information costs increase border effects whereas non tariff barriers are not significant our results further suggest that these barriers are not the only cause since the spatial clustering of firms is also found to matter

the sign and size of option value we adapt the theoretical state preference model to value nonmarket public goods under individual uncertainty about use illustrating with an assessment of willingness to pay to prevent acid rain lake damage in the northeast united states individual

openness to trade in manufactures in the oecd abstract how open are the advanced economies to trade with each other in this paper openness is calculated relative to the predictions of the monopolistic competition trade model using data on manufacturing trade and production in the oecd in 1985 the paper finds that 1 japan imports much less than other large oecd countries while the european countries have larger import volumes than does the us 2 japan and the us engage in less intra industry trade than the rest of the oecd and 3 the eu countries are less open to imports from japan and the us than those countries are open to imports from the eu

the new approach to wilderness preservation through benefit cost analysis over the last 15 years economists of resources for the future led by john krutilla have been developing a new approach to wilderness preservation this paper offers a concise exposition of their approach and adds a few new steps the basic ingredient of the new approach is a perception of declining net benefits of wilderness development and rising net benefits of wilderness preservation over time these alter the entire shape of the benefit cost analysis of potential development the new steps involve reversibility postponability and recognition of multiple interest rates

tariff jumping dfi and export substitution japanese electronics firms in europe abstract analysis of micro data on japanese electronics firms establishes that the rapid increase in japanese manufacturing investments in the late 1980s has for a substantial part been induced by ec antidumping and other trade restricting measures targeting japanese firms evidence is found at the firm level that such tariff jumping investment has substituted for exports from japan on the other hand firms which invested in ec distribution activities acquired ec firms or produce components within a vertical keiretsu export relatively more to europe the latter finding suggests that subcontractor firms were able to expand components exports by supplying the european manufacturing plants of their parent firms

japan s different trade regime an analysis with particular reference to keiretsu many claim that although formal trade barriers have been removed at the border japanese markets remain unusually closed because of non tariff barriers after describing japan s development strategy and the debate over the sources of japanese growth we consider current trade barriers recent research has made some headway investigating the impact of one of the alleged invisible barriers in particular efforts have been made to test if the behavior of japanese corporate groups known as keiretsu creates a barrier to trade finally we consider whether private sector trade restrictions warrant a public response what if anything should be done about keiretsu

one money one market the effect of common currencies on trade currency unions their dramatic effect on international trade a gravity model is used to assess the separate effects of exchange rate volatility and currency unions on international trade the panel data bilateral observations for five years during 1970 90 covering 186 countries includes 300 observations in which both countries use the same currency i find a large positive effect of a currency union on international trade and a small negative effect of exchange rate volatility even after controlling for a host of features including the endogenous nature of the exchange rate regime these effects statistically significant imply that two countries sharing the same currency trade three times as much as they would with different currencies currency unions like the european emu may thus lead to a large increase in international trade with all that that entails andrew rose

urban growth and transportation we estimate the effects of interstate highways on the growth of u s cities between 1983 and 2003 we find that a 10 increase in a city s initial stock of highways causes about a 1 5 increase in its employment over this 20 year period to estimate a structural model of urban growth and transportation we rely on an instrumental variables estimation that uses a 1947 plan of the interstate highway system an 1898 map of railroads and maps of the early explorations of the u s as instruments for 1983 highways we investigate the role of interstate highways in the growth of u s cities our investigation is in three parts in the first we develop a simple structural model describing the joint evolution of highways and employment in cities in the second we develop an instrumental variables strategy that allows us to identify key parameters of our structural model we are also able to provide out of sample evidence for the validity of our estimates and for the central assumptions of our model in the third we use our estimates to assess counterfactual transportation policies we find that a 10 increase in a city s stock of interstate highways causes about a 1 5 increase in its employment over 20 years and that an additional kilometre of highway allocated to a city at random is associated with a larger increase in employment or population than is a road assigned to a city by the prevailing political process our results also suggest that too many new highways were built between 1983 and 2003 these findings are important for three reasons first transportation generally and infrastruc ture in particular are large segments of the economy the median u s household devotes about 18 of its income to road transportation while all levels of government together spend another 200 billion dollars annually overall the value of capital stock associated with road transporta tion in the u s tops 5 trillion dollars united states bureau of transportation statistics 2007 2010 given the magnitude of transportation expenditures it is important that the impact of these expenditures on economic growth be carefully evaluated and not assessed on the basis of the claims of advocacy groups our analysis provides a basis for assessing whether these resources are well allocated our results also provide useful guidance to policy makers charged with planning cities since changes in a city s transportation infrastructure cause changes to the city s employment new transportation infrastructure causes complementary changes in the demand for public utilities and schools our results provide a basis for estimating the magnitude of such changes finally this research is important to furthering our understanding of how cities operate and grow transportation costs are among the most fundamental quantities in theoretical models

income inequality in the united states 1913 1998 this paper presents new homogeneous series on top shares of income and wages from 1913 to 1998 in the united states using individual tax returns data top income and wages shares display a u shaped pattern over the century our series suggest that the large shocks that capital owners experienced during the great depression and world war ii have had a permanent effect on top capital incomes we argue that steep progressive income and estate taxation may have prevented large fortunes from fully recovering from these shocks top wage shares were flat before world war ii dropped precipitously during the war and did not start to recover before the late 1960s but are now higher than before world war ii as a result the working rich have replaced the rentiers at the top of the income distribution

economic valuation of biodiversity sense or nonsense this paper critically evaluates the notion and application of economic monetary valuation of biological diversity or biodiversity for this purpose four levels of diversity are considered genes species ecosystems and functions different perspectives on biodiversity value can be characterized through a number of factors instrumental vs intrinsic values local vs global diversity life diversity vs biological resources etc a classification of biodiversity values is offered based on a system of logical relationships among biodiversity ecosystems species and human welfare suggestions are made about which economic valuation methods can address which type of biodiversity value the resulting framework is the starting point for a survey and evaluation of empirical studies at each of the four levels of diversity the contingent valuation method is by far the most used method an important reason is that the other valuation methods are unable to identify and measure passive or nonuse values of biodiversity at first sight the resulting monetary value estimates seem to give unequivocal support to the belief that biodiversity has a significant positive social value nevertheless most studies lack a uniform clear perspective on biodiversity as a distinct concept from biological resources in fact the empirical literature fails to apply economic valuation to the entire range of biodiversity benefits therefore available economic valuation estimates should generally be regarded as providing a very incomplete perspective on and at best lower bounds to the unknown value of biodiversity changes 2001 elsevier science b v all rights reserved

immigrant links to the home country empirical implications for u s bilateral trade flows immigrants ties to their home countries can play a key role in fostering bilateral trade linkages immigrant ties include knowledge of home country markets language preferences and business contacts that have the potential to decrease trading transaction costs empirical results for the united states suggest that immigrant links have historically been important in increasing bilateral trade flows with immigrants home countries copyright 1994 by mit press

investment projects and natural resources economic rationality in janus role abstract the evaluation of a public project or a public policy is in general based on scientific principles and methods however such an evaluation is not simply a logical and computational exercise there are uncertainties often severe ones in the way scientific knowledge is to be used hence there are degrees of freedom available to the promoters of the project or policy and possibly to other parties involved this paper discusses what use of these degrees of freedom has been made in western europe in situations where the conservation of natural resources has been a significant issue at stake we examine how scientific requirements on one hand and on the other hand the particular views held by the promoter and by other parties involved interact and how main features of the methodology of evaluation are influenced by this interaction which in some cases takes the form of an elaborated negotiation on methodological points

towards an ecological economics of sustainability abstract persistent disagreement both as to the interpretation to be given to sustainability and as to the relation between ecological and economic sustainability has hindered the development of an ecological economics of sustainable resource use this paper identifies the main concepts of sustainability deriving from the two disciplines in order to explore the difference implied by an ecological approach to the problem it is argued that present economic and ecological approaches are largely disjoint and that they address basically different phenomena by combining the efficiency requirements of what is usually thought of as economic sustainability with the stability requirements of an ecological approach it is shown that an intertemporally efficient allocation of resources that satisfies the conditions for constant levels of consumption is not necessary to assure ecological sustainability ecological sustainability requires that the allocation of economic resources should not result in the instability of the economy environment system as a whole

valuing environmental functions tropical wetlands recent studies have suggested that tropical wetland systems may have a crucial economic role to play in development the following paper provides an overview of these benefits using the general framework of cost benefit analysis as the methodological approach to assessing wetland values an analysis of trade offs between conserving or converting tropical wetlands demonstrates that taking into account the opportunity cost of wetland loss leads to a lower level of conversion than would otherwise be the case finally the paper discusses the extensions and limitations of the production function approach as applied to valuing nonmarketed wetland benefits

the trade creating effects of business and social networks evidence from france using theory grounded estimations of trade flow equations this paper investigates the role that business and social networks play in shaping trade between french regions the bilateral intensity of networks is quantified using the financial structure and location of french firms and bilateral stocks of migrants compared to a situation without networks migrants are shown to double bilateral trade flows while networks of firms multiply trade flows by as much as four in some specifications finally taking network effects into account divides the estimation of the impact of transport costs and of the effect of administrative borders by around three

do open access conditions affect the valuation of an externality estimating the welfare effects of mangrove fishery linkages in thailand mangroves are considered ecologicallyimportant due to their role as breedinggrounds and nursery habitats for off shorefisheries however mangrove deforestationthrough conversion to shrimp aquaculturethreatens this valuable function this paperdevelops a dynamic production functionapproach to analyze the influence of habitatchanges on an open access fishery that faces afinite elasticity of demand the basic modelis applied to a case study of the impacts ofmangrove deforestation on the artisanal marinedemersal and shellfish fisheries in thailand by estimating parameters through pooledtime series and cross sectional data over the1983 1993 period for the five coastal zones ofsouthern thailand the welfare impacts ofmangrove deforestation are estimated underdifferent elasticity of demand assumptions under pure open access the welfare lossesestimated for mangrove deforestation inthailand of 30 km2 annually ranged from 12 000 to 408 000 depending on theelasticity of demand

does urbanization mean bigger governments this paper proposes urbanization as a determinant of government size as people move to cities their demand for a more de ned set of regulations but also for basic health education and income standards rises our theoretical framework determines how the regional distribution of the population a ects government size we test this theory on panel data of 175 countries from 1960 to 2010 and two state level samples from colombia and germany results demonstrate a strong positive e ect from urbanization on government spending with a 1 percent increase in the amount of urban citizens leading to a 0 2 percent rise in public expenditure our ndings indicate that public sectors may become more important as worldwide urbanization is progressing this result underlines why government e ectiveness and the quality of public goods provision will be even more important in the future

measuring internal trade distances a new method applied to estimate provincial border effects in canada in this paper we suggest an improved methodology for comparing the intensity of trade across and within national and provincial boundaries earlier efforts to assess border effects for provinces or for countries without internal trade statistics made fairly arbitrary assumptions about average distances for internal trade flows we improve on earlier efforts by taking more complete account of the distribution of population within each province or country internal distance is estimated as a population weighted average of intra city and intercity distances as well as distances to and within rural areas we find higher estimates of internal distances and hence border effects than found in previous studies

survival of the fittest in cities urbanisation and inequality we develop a framework that integrates natural advantage agglomeration economies and firm selection to explain why large cities are both more productive and more unequal than small towns our model highlights complementarities among those factors and matches a number of key stylised facts about cities a larger city size increases productivity via selection and higher urban productivity provides incentives for rural urban migration tougher selection increases the returns to skills and earnings inequality in cities we illustrate a multi city version of the model numerically and explore the formation of new cities the growth of existing cities and changes in income inequality

simultaneity modeling analysis of the environmental kuznets curve hypothesis the environmental kuznets curve ekc hypothesis has been recognized in the environmental economics literature since the 1990 s various statistical tests have been used on time series cross section and panel data related to single and groups of countries to validate this hypothesis in the literature the validation has always been conducted by using a single equation however since both the environment and income variables are endogenous the estimation of a single equation model when simultaneity exists produces inconsistent and biased estimates therefore we formulate simultaneous two equation models to investigate the ekc hypothesis for fifty six countries using annual panel data from 1990 to 2012 with the end year is determined by data availability for the panel to make the panel data analysis more homogeneous we investigate this issue for a three income based panels namely high middle and low income panels given several explanatory variables our results indicate that there exists a bidirectional causality between economic growth and pollution emissions in the overall panels we also find that the relationship is nonlinear and has an inverted u shape for all the considered panels policy implications are provided

valuing the environment as input review of applications to mangrove fishery linkages the following paper reviews recent developments in the methodology for valuing the role of wetlands in supporting economic activity the main focus will be on mangroves serving as a breeding ground and nursery habitat in support of coastal and marine fisheries as this particular ecological function of a mangrove system means that it is effectively an unpriced environmental input into fisheries then it is possible to value this contribution through applying the production function approach the first half of the paper overviews the procedure for valuing the environment as an input applied to the case of a wetland supporting a fishery both the static ellis fisher freeman approach and the dynamic approach developed by barbier and strand incorporating the intertemporal bioeconomic fishing problem are reviewed the second half of the paper discusses briefly two recent case studies of mangrove fishery valuation an application in south thailand which is based on the static ellis fisher freeman model and an application in campeche mexico which is based on the dynamic approach 2000 elsevier science b v all rights reserved

the environmental consequences of trade evidence from subnational trade flows abstract the debate over the environmental consequences of free trade is not only quite heated but also entails significant policy ramifications recently cross sectional analysis at the country level has made use of exogenous determinants of trade to identify the causal effect of trade on the environment finding moderate evidence of a beneficial impact of expanded trade on environmental quality given the stakes involved we revisit this finding using subnational data on trade flows across us states and several measures of pollution not only does the analysis shed further light on the debate at the international level but also addresses a heretofore unexamined question does greater inter regional commerce at the subnational level harm the environment our findings are striking providing further evidence against a negative environmental impact of trade for the majority of measures analyzed however several sources of heterogeneity arise that are noteworthy

literature survey on the relationships between energy environment and economic growth abstract the aim of this study is to exhibit an exhaustive survey which is related to the great flight of the literature of energy environment growth nexus at the individual and regional scale studies covering the period from 1978 to 2014 the survey takes into consideration the sample country region etc periods covering econometric strategies and conclusions our survey is based on the causality direction among i the energy use variables electricity nuclear renewable and non renewable and output growth ii between economic growth and environment and between the three variables at the same time globally these surveys provide paradoxical and not conclusive results which energy consumption can boost economic growth through the productivity enhancement and it can boost also the environmental damages through the enhancement of pollutant emissions our survey sheds more the lights on the energy environment growth literature by giving an extensive listing 1978 2014 of these causal linkages among the energy use variables environment and economic growth for both individual and collective cases there is a unanimous consensus about the importance of dealing with such dynamic relationship which is seems to be a cornerstone element in setting any ambition strategies energy ecological and economics

national borders and international trade evidence from the european union in this paper the impact of national borders on international trade within the european union is considered using a gravity model i find that averaged over all eu countries intranational trade is about ten times as high as international trade with an eu partner country of similar size and distance this relatively strong home bias suggests that even within the european union national borders still have a decisive impact on trade patterns jel classification f02 f14 f15 o52 ce memoire examine l impact des frontieres nationales sur le commerce international a l interieur de l union europeenne on montre que en moyenne pour tous les pays de l union europeenne le commerce intranational est a peu pres dix fois plus important que le commerce international avec un pays partenaire de l union europeenne de meme taille et a meme distance ce degre relativement important de preference nationale suggere que meme dans le cadre de l union europeenne les frontieres nationales ont encore un impact determinant sur les patterns de commerce

development and government policies of the shrimp farming industry in thailand in relation to mangrove ecosystems abstract intensive shrimp farming arrived in thailand during the 1980s and developed virtually unregulated until 1987 subsidised by the government it quickly became an important export industry and thailand has been the world s largest producer of tiger shrimp since 1991 however the development of the shrimp farming industry in thailand over the last 20 years in relation to its use of mangrove ecosystems is an example of sequential exploitation of natural resources witnessed through the shift in farm development from one region to another this sequential exploitation has caused widespread degradation of mangrove ecosystems and the benefits of the industry may be less than perceived as a result of subsidies and environmental and social impacts this study follows the development of shrimp farming in thailand from the 1940s to 1997 and studies national legislation and associated government policy as examples of driving forces behind this development from our findings it appears that the development of legislation has not followed the same pace as the development of the industry neither temporally nor in content nor implementation and contradictory policies have arisen

intra national home bias some explanations wolf demonstrates that trade within the united states appears substantially impeded by state borders we revisit this finding with improved data we show that much intranational home bias can be explained by wholesaling activity shipments by wholesalers are much more localized within states than shipments from manufacturing establishments controlling for relative prices and the use of actual rather than imputed shipment distances also reduces home bias estimates

economics and the debate about preservation of species crop varieties and genetic diversity the paper reviews and outlines criteria that have been suggested for determining whether or not to save a species for extinction priorities as set out in the world conservation strategy cost benefit analysis and the safe minimum standard approach are given particular consideration the different criteria also are compared assuming that there is an absolute upper constraint on the amount of resources available for the conservation of species there is some discussion of whether the reduction in available crop varieties is adding to or reducing the instability of crop yields it is claimed that relative variability appears to be falling but there may be an increasing risk of non sustainability the importance of the burden of proof in the conservation versus non conservation debate is stressed and it is suggested that recent economic thought has swung more towards the view that the burden of proof should rest on those seeking to carry out activities which may extinguish a species

the crowding out of complex social goods the valuation of ecosystem services to inform natural resource management and development has gained acceptance in many arenas yet contemporary economic valuation is constrained to the appraisal of simple goods that generate benefits that accrue to individuals neglecting complex goods that generate benefits that accrue to society more broadly methodological barriers to the valuation of complex social goods have led to their frequent omission from natural resource management deliberations the prevailing valuation paradigm that focuses on simple individual goods may erode conservation efforts by crowding out the institutions and behaviours that support socially constructed ecosystem service values erosion of these values ultimately harms the environment and society as a whole the institutionalisation of appropriate methods for estimating the value of complex social goods alongside existing methods for valuing simple individual goods within international conservation development and policy making discourses is therefore an important evolution for sustainable natural resource management