general equilibrium modelling of the direct and indirect economic impacts of water quality improvements in the netherlands at national and river basin scale abstract the main objective of the study presented in this paper is to estimate the direct and indirect economic impacts of water quality policy scenarios in the netherlands focusing on the reduction of emission levels of nutrients and a number of eco toxicological substances for this purpose an applied general equilibrium age model consisting of 27 production sectors is extended to water through the inclusion of substitution elasticities between labour capital and emissions to water in the sectors production functions the macro economic costs of a 10 20 and 50 reduction of the emission levels in the year 2000 of ten priority substances in the eu water framework directive vary between 0 2 and 9 4 of net national income nni a large share of the total economic costs are borne by important sources of pollution like commercial shipping the chemical and metal industry however important spin off effects due to adaptation take place in the tertiary service sector besides the estimation of the economy wide impacts of water quality improvements the novelty of the study presented here is found in the downscaling of national and sector results to river basin level and the estimation of shadow prices for water polluting substances through the introduction of an emission permits market

work hours wages and vacation leave using the panel study of income dynamics the authors provide a set of facts about vacation leave they show that on average vacation time taken rises one to one with paid vacation annual hours worked fall by about one full time week with every week of paid vacation the amount by which vacation time taken exceeds time paid is highest for women union members and government workers paid vacation weeks are positively associated with hourly wage rates and to a lesser extent with nonwage compensation and vacation time taken is weakly countercyclical vacation leave seems to be determined by broad employer policy rather than by negotiation between the worker and the firm in particular it is strongly related to seniority but depends very little on labor market experience and for job changers it is only weakly related to vacation on the previous job

identifying sectoral energy carbon water nexus characteristics of china abstract energy co2 emissions and water ecw are fundamentally linked holistic and in depth understanding of sectoral ecw nexus is essential to achieve socioeconomic sustainability this study employs environmental input output eio model to calculate the sectoral embodied ecw from 2002 to 2015 and adopts four indicators i e sectoral embodied ecw the proportion of direct ecw in embodied ecw and their changes to explore sectoral ecw nexus characteristics of china power egw and transport trs are key ecw nexus sectors in china with much larger embodied ecw and direct ecw sectors agriculture agr mining min and construction con show great changes in their ecw nexus characteristics between 2002 and 2015 sector agr is gradually becoming ecw intensive because agricultural modernization with the large scale adoption of modern water saving irrigation technologies leads to rapid increase in its energy and water use differentiated ecw related mitigation measures among sectors should be implemented through identifying their different ecw nexus characteristics as well as considering the synergies and co benefits of ecw related policies

a review of the water energy nexus abstract water and electricity are fundamentally linked at a basic level electricity generation requires water and water treatment and transportation use electricity historically there has been little reason to understand the nature of these links due largely to the presumption that water was not a threat to energy security nor electricity a threat to water security this presumption is now being challenged industry reforms increasing demand and more recently climate change are bringing into sharp focus the links between water and electricity in unprecedented ways general awareness of the links between water and electricity is increasing daily as the ramifications of the links are being felt the world over society s ability to deal with the challenges and uncertainties arising from the links between water and electricity is being hindered by limited understanding of the nature of the links and seeming lack of policy tools to effectively analyze them this paper reviews comprehensively the links between water and electricity presents a classification system for identifying links using the classification system this study further discusses these links by drawing upon examples from literature and follows with a synopsis of the nature of these links with this background the paper reviews and compares water energy studies in terms of scope objectives methodologies and key findings discusses major limitations of these studies and identifies important areas that would benefit from more in depth research this research contends that this type of approach is unsuitable in the longer term particularly when examining complex and multidimensional issues like the water energy nexus this work suggests that the nature of the nexus should and can be explored from a wider perspective by developing a suitable integrated methodological framework to serve as a platform for such exploration the purpose of this paper therefore is to outline the development of such a framework introduces integral theory and discusses how integral theory has shaped the development of the methodological framework employed in this research presents the framework and describes the suite of methods

water and energy price impacts on residential water demand in copenhagen while water price effects on residential water demand have been studied for several decades the impact of energy prices does not seem to have received much attention in this paper a residential water demand function derived from a model of household production of final consumption goods taking water energy and an aggregate of other goods as inputs is estimated on pooled time series data we find negative energy cross price elasticities around 0 2 and water price elasticities in the order of 0 1 or smaller

compensating wage differentials in stable job matching equilibrium abstract this paper studies implicit pricing of non wage job characteristics in the labor market using a two sided matching model it departs from the previous literature by allowing worker heterogeneity in productivity which gives rise to a double transaction problem in a hedonic model deriving sufficient conditions under which assortative matching is the unique stable job worker matching we show that observed wage differentials between jobs reflect not only compensating wage differentials but also worker productivity gaps between the jobs we find that the job worker matching pattern determines the extent to which compensating wage differentials are confounded with the worker productivity gap effect

the effects of energy prices on agricultural groundwater extraction from the high plains aquifer we examine the effects of energy prices on groundwater extraction using an econometric model of a farmer s irrigation water pumping decision that accounts for both the intensive and extensive margins our results show that energy prices have an effect on both types of margins increasing energy prices would affect crop selection decisions crop acreage allocation decisions and farmers demand for water our estimated total marginal effect which sums the effects on the intensive and extensive margins suggests that a 1 per million btu increase in the energy price would decrease water extraction by an individual farmer by 5 89 acre feet per year a decrease of 3 6 percent of the average annual extraction rate our estimated elasticity of water extraction with respect to energy price is 0 26

economywide impacts of climate change on agriculture in sub saharan africa two possible adaptation scenarios to climate change for sub saharan africa are analyzed under the sres b2 scenario the first scenario doubles the irrigated area in sub saharan africa by 2050 compared to the baseline but keeps total crop area constant the second scenario increases both rainfed and irrigated crop yields by 25 for all sub saharan african countries the two adaptation scenarios are analyzed with impact a partial equilibrium agricultural sector model combined with a water simulation module and with gtap w a general equilibrium model including water resources the methodology combines the advantages of a partial equilibrium approach which considers detailed water agriculture linkages with a general equilibrium approach which takes into account linkages between agriculture and nonagricultural sectors and includes a full treatment of factor markets the efficacy of the two scenarios as adaptation measures to cope with climate change is discussed due to the limited initial irrigated area in the region an increase in agricultural productivity achieves better outcomes than an expansion of irrigated area even though sub saharan africa is not a key contributor to global food production rainfed irrigated or total both scenarios help lower world food prices stimulating national and international food markets

what aspects of formality do workers value evidence from a choice experiment in bangladesh this study uses a choice experiment among 2 000 workers in bangladesh to elicit willingness to pay wtp for job attributes a contract termination notice working hours paid leave and a pension fund using a stated preference method allows calculation of wtp for benefits in this setting despite the lack of data on worker transitions and the fact that many workers are self employed which makes it difficult to use revealed preference methods workers highly value job stability the average worker would be willing to forego a 27 percent increase in income to obtain a 1 year contract relative to no contract or to forego a 12 percent increase to obtain thirty days of termination notice there is substantial heterogeneity in wtp by type of employment and gender women value shorter working hours more than men while government workers place a higher value on contracts than do private sector employees

privately operated water utilities municipal price negotiation and estimation of residential water demand the case of france this paper addresses the issue of price negotiation between a municipality and a private water utility operator and its implications for residential water demand estimation we use appropriate econometric procedures to estimate a water demand equation on a panel of french municipalities we find evidence that negotiated water price depends on municipality s characteristics causing endogeneity of price in the demand equation the impact of average household income housing and system features such as metering is investigated both on municipal consumption and price estimated price and income elasticities are significant and close to previous household level studies

impact of electricity prices and volumetric water allocation on energy and groundwater demand management analysis from western india abstract in recent years power tariff policy has been increasingly advocated as a mean to influence groundwater use and withdrawal decisions of farmers in view of the failure of existing direct and indirect regulations on groundwater withdrawal in india many researchers argue that pro rata electricity tariff with built in positive marginal cost of pumping could bring about efficient use of the resource though some argue that the levels of tariff in which demand becomes elastic to pricing are too high to be viable from political and socio economic points of view the paper presents a theoretical model to analyze farmers response to changes in power tariff and water allocation regimes vis a vis energy and groundwater use it validates the model by analyzing water productivity in groundwater irrigation under different electricity pricing structures and water allocation regimes water productivity was estimated using primary data of gross crop inputs cost of all inputs and volumetric water inputs the analysis shows that unit pricing of electricity influences groundwater use efficiency and productivity positively it also shows that the levels of pricing at which demand for electricity and groundwater becomes elastic to tariff are socio economically viable further water productivity impacts of pricing would be highest when water is volumetrically allocated with rationing therefore an effective power tariff policy followed by enforcement of volumetric water allocation could address the issue of efficiency sustainability and equity in groundwater use in india

heating homes understanding the impact of prices abstract studies show that energy prices have an impact on household energy consumption however these studies pay little attention to interpreting the findings and therefore little is known about how and why households respond to energy prices this paper provide an example of an interpretation of the impact of energy prices on consumption from a social practice theoretical perspective this paper investigates the impact of district heating price level on energy used for space heating and hot water by danish households living in single family detached houses the results show a moderately negative effect of the price level on consumption which is stronger in newer presumably more energy efficient houses and for higher income households however the effect varies across years which suggests that the price responsiveness is more a matter of changing everyday practices short term response than being able to afford energy improvements long term response in a practice theoretical perspective the results indicate that price differences have an impact on everyday practices where for example the aspect of energy in everyday practices is perceived as more valuable to practitioners in expensive areas compared to cheaper areas and that the meaning of price in practices is influenced by the social and material contexts

search theoretic models of the labor market a survey we survey the literature on search theoretic models of the labor market we show how this approach addresses many issues including the following why do workers sometimes choose to remain unemployed what determines the lengths of employment and unemployment spells how can there simultaneously exist unemployed workers and unfilled vacancies what determines aggregate unemployment and vacancies how can homogeneous workers earn different wages what are the tradeoffs firms face from different wages how do wages and turnover interact what determines efficient turnover we discuss various modeling choices concerning wage determination and the meeting process including recent models of directed search

environmental policy in a federation with special interest politics and inter governmental grants the paper explores the potential effect of intergovernmental grants igg on sub national local environmental policy in a federal structure in the model a politically inclined local government receives campaign contributions from the polluters lobby in return for lower pollution taxes a benevolent federal government uses igg as an incentive to reduce the resulting distortion in the local pollution tax igg are formulaic transfers that are conditional on pollution levels lower pollution in a sub national jurisdiction relative to others translates into a higher share of the grant and vice versa in equilibrium the grant effect reduces the distortion created in the pollution tax by the lobby effect and may even lead to a higher than pigouvian tax when the local government assigns a large enough weight on social welfare and or when the grant is large enough further igg result in the tax levels of jurisdictions becoming interdependent in an interesting way environmental policies in two jurisdictions may become strategic complements or substitutes depending on their relative pollution levels the possibility of strategic substitution implies that federal welfare may not increase even when environmental policy becomes stricter in one state

demand specification for municipal water management evaluation of the stone geary form to specify demand in most water allocation problems researchers face a tradeoff between flexibility and parsimony flexible forms are less constraining on elasticity estimates but require large parameter sets that tend to cause poor out of sample forecasts and computational difficulties using a five year panel of texas municipalities the parsimonious stone geary form yields estimated demand functions that are comparable to flexible form results the stone geary specification also provides an estimate of the portion of water use that may not be responsive to price and is useful in analysing price structures and designing conservation policies

hedonic wages and labor market search this article investigates the consequences of labor market search for the theory of hedonic wages we find that the introduction of search has surprising consequences for the theory of hedonic wages in particular we demonstrate that the equilibrium distribution of wage and nonwage amenity bundles generally bears little resemblance to workers underlying preferences a consequence of this analysis is that estimates of workers marginal willingness to pay derived from the conventional hedonic wage methodology are biased in addition we demonstrate that search generates differences between firm level and employee level data that can cause substantial deviations in the estimates of hedonic wage equations

a new approach to the spatial theory of electoral competition in his unidimensional model of electoral competition downs argues that voters use party ideology as an informational short cut for forecasting the policies that a party will pursue if elected parties are perceived by voters as points on an ideological axis in the davis hinich multidimensional model on the other hand the axes are real issues and the principal actors are politicians who are modeled as points in the multi issue space this paper reformulates spatial voting theory in terms of a model that connects what we call predictive dimensions with political issues that are salient during a given election campaign this model is both a synthesis and an extension of the downs and davis hinich spatial models we obtain a median voter result for one predictive dimension that is similar to the downs result but with important differences we also obtain results showing the electoral advantage of incumbency and the tendency for incremental change when there is a great deal of heterogeneity in voter perceptions about the candidates

nash equilibrium strategies in directional models of two candidate spatial competition the standard approach to two party political competition in a multi dimensional issue space models voters as voting for the alternative that is located closest to their own most preferred location another approach to understanding voter choice is based on preferred direction of change with respect to some specified neutral point e g an origin or status quo point

the workers value of the remaining employment contract duration this paper introduces and applies a method for estimating workers marginal willingness to pay for job attributes employing data on job search activity worker s willingness to pay for the remaining duration of the employment contract is derived we provide evidence that workers attach substantial value to the remaining contract duration a temporary worker with a remaining contract of 6 months is willing to pay about 10 of the wage to increase the contract by one month

an introduction to the wage curve en conomists and policymakers are interested in understanding the forces that determine the level of unemployment and the level of wages this paper describes an empirical discovery made with the help of international microeconometric evidence covering more than a dozen nations about a link between these two variables the connection can be portrayed on a graph with the level of unemployment on the horizontal axis and the level of wages on the vertical axis then the wage curve as shown in figure 1 is a downwardsloping locus this relationship tells us that holding others things constant if a region has a rise in unemployment in a particular year those who live there will have a fall in their wages in that year what does this curve mean how in a field where fully controlled experiments are almost impossible could there be any convincing scientific basis for this wage curve what is the relationship between the wage curve and a phillips curve other than that the curve of figure 1 looks like a phillips curve with the vertical axis mislabeled how does the wage curve fit into existing economic knowledge and is the empirical finding consistent with competitive theory this paper sketches answers to these kinds of questions the discussion draws on our book the wage curve blanchflower and oswald 1994 where the points raised here are investigated more fully it also rests upon work done by other economists whose work is listed in the paper and the bibliography

a directional theory of issue voting from stokes s 1963 early critique on it has been clear to empirical researchers that the traditional spatial theory of elections is seriously flawed yet fully a quarter century later that theory remains the dominant paradigm for understanding mass elite linkage in politics we present an alternative spatial theory of elections that we argue has greater empirical verisimilitude based on the ideas of symbolic politics the directional theory assumes that most people have a diffuse preference for a certain direction of policy making and that people vary in the intensity with which they hold those preferences we test the two competing theories at the individual level with national election study data and find the directional theory more strongly supported than the traditional spatial theory we then develop the implications of the directional theory for candidate behavior and assess the predictions in light of evidence from the u s congress

workers marginal costs of commuting abstract this paper applies a dynamic search model to estimate workers marginal costs of commuting including monetary and time costs using data on workers job search activity as well as moving behaviour for the netherlands we provide evidence that on average workers marginal costs of one hour of commuting are about 17 euro

offer heterogeneity in a two state model of sequential search the econometric method in the c flinn and j heckman 1982 study for estimating a markovian model of search unem ployment and job tenure is further augmented by introducing a possibi lity that jobs may differ by separation rates or nonwage attributes a set of reservation wages is obtained as a solution to the value fun ctions differences in reservation wages estimate the compensating no nwage utility differentials among jobs the unemployment spell distri bution is characterized as one of competing risk based on which type of job is finally accepted the model is implemented using data from the employment opportunities pilot project copyright 1988 by mit press

new players in an old game party strategy in multiparty systems this article compares two spatial models of party competition a the traditional proximity model and b the directional model of voter choice the article first lays out the differences between the two models in multiparty systems the traditional proximity model makes no clear prediction about the spatial structure of political parties the directional model predicts that optimal placement for parties will be along the circumference of a circle at a moderate distance from the center both theories have implications for overtime strategy and the success of new political parties traditional proximity theory emphasizes movement toward a location with high density of voters while directional theory emphasizes the importance of a distinct directional strategy the authors examine the norwegian political system from 1969 1985 and the swedish system from 1979 1982 and find the directional theory more strongly supported

long run study of residential water consumption the estimation of dynamic models and themeasure of long run effects arerare in residential water demand studies weshow in this paper that a dynamicmodel of water consumption can be derived froma structural optimisation programsolved by local communities thisnonlinear model is estimated on asample of french municipalities and is foundasymptotically equivalent to a dynamic panel data model that is linear in theparameters the latter includes anoriginal error component structure that allowsfor a flexible heterogeneity pattern including both the usual idiosyncraticeffect and an additional individualeffect affected by a multiplicative time varyingparameter as usual gmm estimators for panel data are not consistent inthis case we propose a new gmmprocedure that yields consistent and efficientestimates of short and long runprice elasticities respectively 0 26 and 0 40

distance versus direction the illusory defeat of the proximity theory of electoral choice in an extensive series of articles rabinowitz macdonald and listhaug have launched a new directional theory of electoral choice according to their claims the new theory is superior to the classical downsian proximity model such a conclusion however is not tenable first it fails to take proper account of the lower falsifiability of the directional model second it rests on empirical analyses that do not test the two theories on the predictions they actually make both are theories of individual choice which implies intrapersonal comparisons of utility prior tests however have predominantly taken the form of interpersonal comparisons a reanalysis based on the proper type of comparison yields an outcome diametrically opposed to that previously obtained it also reveals an eccentricity effect that largely accounts for the apparent success of the directional model

valuing alternative work arrangements abstract we employ a discrete choice experiment in the employment process for a national call center to estimate the willingness to pay distribution for alternative work arrangements relative to tr

the determinants of black white differences in early employment careers search layoffs quits and endogenous wage growth this paper studies the transition from school to full time employment and subsequent labor mobility during the first five postschooling years for several recent cohorts of black and white male terminal high school graduates using unique data from the 1979 youth cohort of the national longitudinal surveys of labor market experience a constrained optimization model of labor force dynamics is implemented empirically integrating features of models previously described in the literature the estimates of the model provide quantitative evidence on underlying structural differences in labor market constraints faced by blacks and whites for example while blacks have overall a substantially smaller wage return to work experience and face a less disperse wage offer distribution blacks face a higher probability of receiving job offers

the economics of quality in the specialty coffee industry insights from the cup of excellence auction programs this study estimates price determinants for specialty green coffee auctions using records from the 2004 2010 cup of excellence programs hosted by the alliance for coffee excellence while some literature on coffee has focused on certifications and sustainability labels the discussion of price determinants has been limited this article replicates one of the first publications on price determinants and formulates a new model to more accurately describe the market we include the necessary additional variables and estimate the model using a truncated maximum likelihood estimation technique while sensory quality has a strong effect on price the highest premiums stem from obtaining a top rank compared to other coffees from the same country and north american buyers are more responsive to sensory quality than buyers in asian and european markets jel classifications c24 d44 q13

bio economic modeling of water quality improvements using a dynamic applied general equilibrium approach an integrated bio economic model is developed to assess the impacts of pollution reduction policies on water quality and the economy emission levels of economic activities to water are determined based on existing environmental accounts these emission levels are built into a dynamic economic model for the dutch economy and subsequently coupled to a national water quality model the modular approach has the advantage that the impacts on the economy and water quality are evaluated simultaneously but each within their own domain based on the appropriate scale and level of detail the dynamic nature of the economic model allows us to also evaluate a derogated water policy as foreseen in the european water framework directive the indirect costs of different water quality improvement policy scenarios are at least as high as the direct costs related to investments in pollution abatement technology the stricter the policy scenario the more important the role of economic adjustment and restructuring mechanisms at the macro economic level significant water quality improvements can be achieved through stringent domestic emission reductions however reaching water quality standards is highly dependent on water quality improvement policy in surrounding river basin countries and climate change

conceptualizing voter choice for directional and discounting models of two candidate spatial competition in terms of shadow candidates in contrast to the traditional modeling of voter choice based on proximity under directional models selection of candidates is based on the direction and or intensity of change from a status quo or neutral point voter choice can also be modeled as representing both approaches e g as a directional model with proximity restraint or alternatively in terms of proximity to discounted positions

a dynamic analysis of educational attainment occupational choices and job search this article examines career choices using a dynamic structural model that nests a job search model within a human capital model of occupational and educational choices wage growth occurs in the model because workers move between firms and occupations as they search for suitable job matches and because workers endogenously accumulate firm and occupation specific human capital simulations performed using the estimated model reveal that both self selection in occupational choices and mobility between firms account for a much larger share of total earnings and utility than the combined effects of firm and occupation specific human capital

search and nonwage job characteristics this paper quantifies the importance of nonwage job characteristics to workers by estimating a structural on the job search model the model generalizes the standard search framework by allowing workers to search for jobs based on both wages and job specific nonwage utility flows within the structure of the search model data on accepted wages and wage changes at job transitions identify the importance of nonwage utility through revealed preference the estimates reveal that utility from nonwage job characteristics plays an important role in determining job mobility the value of jobs to workers and the gains from job search

the pervasive absence of compensating differentials we study the relation between individual preferences for job amenities e g type of work job security and compensating wage differentials in cross section to this end we estimate a partial equilibrium job search model on panel data from eight european countries there are five non wage job characteristics and two sources of job to job mobility on the job search and reallocation shocks we also allow for two types of unobserved heterogeneity we find strong preferences for amenities especially job security yet these preferences do not translate into significant wage differentials in cross section counterfactual experiments show that one would need extremely low levels of search frictions for compensating differentials to arise lastly a similar exercise on the distribution of job change outcomes reveals the role of constrained job to job mobility in the absence of compensating wage differentials copyright 2009 john wiley sons ltd

linking action situations coordination conflicts and evolution in electricity provision for irrigation in andhra pradesh india abstract actor centred institutional analysis can gain through an expanded focus from a focal action situation to the adjacent situations that make up its structure equilibrium outcomes in game models of a focal action situation may not be explainable without considering linked games the concepts of an ecology of games nested games or economic network analysis indicate the relevance of this move but a structured approach to heterogeneous networks of adjacent action situations encountered in resource and infrastructure governance has only recently been developed this paper draws on the adjacency concept and proposes four types of links a potential boundary for adjacency networks and a condition for bidirectional causation between linked action situations the relevance of the theoretical propositions laid out is empirically supported for the analysis of electricity governance of irrigation in andhra pradesh the actual and empirically observed outcomes as well as the potential capacity of an adjacent action situation to influence focal outcomes are analysed through a set of stylised game theory models and their links

combining bottom up and top down abstract we motivate the formulation of market equilibrium as a mixed complementarity problem which explicitly represents weak inequalities and complementarity between decision variables and equilibrium conditions the complementarity format permits an energy economy model to combine technological detail of a bottom up energy system with a second best characterization of the over all economy our primary objective is pedagogic we first lay out the complementarity features of economic equilibrium and demonstrate how we can integrate bottom up activity analysis into a top down representation of the broader economy we then provide a stylized numerical example of an integrated model within both static and dynamic settings finally we present illustrative applications to three themes figuring prominently on the energy policy agenda of many industrialized countries nuclear phase out green quotas and environmental tax reforms

dealing with monopsony power employment subsidies vs minimum wages abstract we show in a monopsony model that accounting for changes in hours a minimum wage has ambiguous effects on employment and welfare when all workers have the same preference ordering over leisure and consumption employment subsidies unambiguously improve welfare many countries have minimum wages and also tax minimum wage workers

strategic decisions under one stage multi candidate voting systems we have seen that under the assumptions of this study the problem of maximizing a voter s total utility for a number of one stage decision rules for multi candidate elections may be specified as linear or quadratic programs potentially optimal strategies emerge as extreme points of the feasible region in the sense that no other strategies can be uniquely optimal categorical approval borda and z score decision rules are all minimal in the sense that for each the feasible region with abstentions excepted consists entirely of potentially uniquely optimal strategies for each of these decision rules we have determined the optimal strategies explicitly in terms of the voter s utility function among the minimal voting systems studies we argue that the voter s task of estimating his optimal strategy is least difficult under approval voting

preference for the workplace investment in human capital and gender we use a hypothetical choice methodology to estimate preferences for workplace attributes from a sample of high ability undergraduates attending a highly selective university we estimate that women on average have a higher willingness to pay wtp for jobs with greater work flexibility and job stability and men have a higher wtp for jobs with higher earnings growth these job preferences relate to college major choices and to actual job choices reported in a follow up survey four years after graduation the gender differences in preferences explain at least a quarter of the early career gender wage gap

constrained by hours and restricted in wages the quality of matches in the labor market this paper examines the explicit loss born by workers who face constraints in their working hours by analyzing differences in actual and desired hours and wages men tend to be underemployed while women are evenly split between over and underemployment losses in surplus are generally small but 10 of underemployed men and women experience losses of more than 34 or 50 of surplus respectively the loss measure is also an important determinant in predicting labor market transitions meaning increases in surplus losses generate a higher probability of changing from workers present jobs or changing the number of hours jel j22 j41

estimating compensating wage differentials using voluntary job changes evidence from germany the author develops a model predicting that in a labor market that attaches a wage premium to jobs with a disamenity a compensating wage differential the premium s upper bound will be defined by the average wage change of voluntary job movers whose consumption of the disamenity rises as a result of their move its lower bound by the wage change of those whose consumption of the disamenity falls these predictions will not hold if as predicted by a segmented labor market model the labor market attaches a wage penalty to workplace disamenities using longitudinal data on job characteristics and wages in germany in 1984 2001 the author estimates the market returns to four workplace disamenities heavy workload job insecurity poor hours regulation and a mismatch between skills possessed and skills required the results broadly support the existence of compensating differentials in the german labor market

job search by employed and unemployed youth analysis of data from the new youth cohort of the national longitudinal survey yields evidence that young unemployed job seekers chose higher levels of search effort as measured by number of methods used and time spent per method and lower reservation wages relative to offered wages than did comparable employed job seekers in 1981 these differences in search choices at least partly explain differences in search outcomes between the two groups unemployed searchers apparently were more likely than employed searchers to gain new employment and the wages they obtained were slightly lower the author argues that the greater search effort by unemployed job seekers is due to the higher costs of search they bear because of foregone earnings

estimating demand under block rates electricity and water many empirical studies of the demand for electricity under declining block tariffs have been conducted but few have produced results consistent with traditional demand theory nordin bell j economics 7 719 21 1976 explains this in part by pointing out that most of those studies failed to take into account the income effects caused by intramarginal price differences the authors show here that nordin s suggestion involves the inappropriate use of ordinal level statistics ols they propose a method by which consistent estimates of the demand parameters can be obtained when a household s rule for selecting a block can be estimated 19 references 1 figure

evidence of the water energy nexus in tourist accommodation the water energy nexus is critical to solving multiple resource challenges simultaneously but has rarely been considered in tourism despite evidence that tourism can be both energy and water intensive a database of 876 environmentally certified hotels globally was used to explore the resource use savings achievements and existence of different nexuses differentiated by accommodation type vacation business and villas the research established robust benchmarks for energy 175 420 mj per guest night water 358 1338 l per guest night and waste 2 1 2 9 l per guest night and found that annual improvements in resource intensity are in the order of several percent with the first years of being in a certification program yielding the largest reductions absolute decreases in resource use over time could not be observed raising concerns that efficiency gains are outweighed by growth the relationship between all three resource indicators was significant but particularly pronounced for the water energy nexus indicating the intrinsically close relationship between water for energy and energy for water the main contribution of this research is to provide an important knowledge basis for harnessing this nexus taking a nexus approach to resource savings in tourism is an important step towards achieving not only relative but also absolute reductions

macro micro feedback links of water management in south africa cge analyses of selected policy regimes the pressure on an already stressed water situation in south africa is predicted to increase significantly under climate change plans for large industrial expansion observed rapid urbanization and government programs to provide access to water to millions of previously excluded people the present study employed a general equilibrium approach to examine the economy wide impacts of selected macro and water related policy reforms on water use and allocation rural livelihoods and the economy at large the analyses reveal that implicit crop level water quotas reduce the amount of irrigated land allocated to higher value horticultural crops and create higher shadow rents for production of lower value water intensive field crops such as sugarcane and fodder accordingly liberalizing local water allocation in irrigation agriculture is found to work in favor of higher value crops and expand agricultural production and exports and farm employment allowing for water trade between irrigation and non agricultural uses fueled by higher competition for water from industrial expansion and urbanization leads to greater water shadow prices for irrigation water with reduced income and employment benefits to rural households and higher gains for non agricultural households the analyses show difficult tradeoffs between general economic gains and higher water prices making irrigation subsidies difficult to justify

an econometric estimation of industrial water demand in france this study investigates the structure of industrial water demand byestimating the derived demand for water on a sample of industrialestablishments located in the south west of france productiontechnologies are represented by short term variable cost functions andapproximated by a translog form industrial water use is modeled ashaving three components the quantity of water bought to a waterutility the quantity of autonomous water and the quantity of watertreated prior to use we include in this framework water effluents which are considered as a by product of the production process emittedby firms each of the three water components is treated as a separateinput and all are estimated as a system of simultaneous equations themodel is estimated on a sample of 51 industrial plants in the girondedistrict observed from 1994 to 1996 using seemingly unrelated regression sur and feasible generalized least squares fgls results ofestimations show that industrial firms are sensitive to water priceinputs network water elasticity is estimated at 0 29 it variesfrom 0 10 to 0 79 according to the type of industryconsidered autonomous water price elasticity is not significant elasticity for treated water is evaluated at 1 42 at themean sample and varies from 0 90 to 2 21 according to theindustry considered

the pricing of job characteristics when markets do not clear theory and policy implications this article examines nonsequential search when jobs vary with respect to nonpecuniary characteristics in the presence of frictions in the labor market the equilibrium job distribution need not show evidence of compensating wage differentials the model also generates several pervasive features of labor markets unemployment and vacancies apparent discrimination and market segmentation when workers are homogeneous restrictions on the range of job offers decrease welfare and cannot reduce unemployment however when workers have heterogeneous preferences such restrictions may lower unemployment and can even lead to a pareto improvement in welfare we consider the impact of policies banning discrimination and regulating working conditions

school characteristics and teacher turnover assessing the role of preferences and opportunities job characteristics can affect worker turnover through their effect on utility and through their effect on outside job opportunities the aim of this study is to identify and estimate the roles of these two channels separately our method exploits information on job changes and relies on an augmented sample selection correction to illustrate our approach we use an exhaustive register of dutch primary school teachers and show a detailed picture of preferences for school characteristics we also find that the dependence between current and outside job attributes can affect turnover and thus the allocation of teachers across schools

the welfare impact of self supplied water pricing in canada a computable general equilibrium assessment this paper uses a computable general equilibrium model to assess the welfare cost of changing the method of water allocation in canada towards one that uses prices to ration demand we model the introduction of a price on both water that is abstracted as well as water that is consumed that is abstracted and not returned to the source we estimate that reducing water consumption by 25 would require imposition of a price on water consumption of around 0 21 text m 3 similarly introduction of a water abstraction charge of about 0 013 text m 3 would be sufficient to reduce water abstraction by 25 we find that if revenues from water pricing are returned in lump sum to households the introduction of water pricing would result in a modest welfare loss when revenues from water pricing are used to offset existing taxes we find a gain in welfare corresponding to a strong double dividend

municipal water supply and sewage treatment costs prices and distortions municipal water supply and sewage treatment utilities in ontario canada are studied in order to establish their costs of supply and evaluate their pricing practices prices charged to residential and commercial customers are found to be only one third and one sixth of the estimated marginal cost for water supply and sewage treatment respectively for example the average price to residential customers is 0 32m superscript 3 while the estimated marginal cost is 0 87 m superscript 3 the estimated cost parameters are combined with estimated residential and nonresidential demands functions in order to calculate approximate welfare losses that arise from overconsumption

the sectoral and regional economic consequences of climate change to 2060 this paper presents a new detailed global quantitative assessment of the economic consequences of climate change i e climate damages to 2060 the analysis is based on an assessment of a wide range of impacts changes in crop yields loss of land and capital due to sea level rise changes in fisheries catches capital damages from hurricanes labour productivity changes and changes in health care expenditures from diseases and heat stress changes in tourism flows and changes in energy demand for cooling and heating a multi region multi sector dynamic computable general equilibrium model is used to link different impacts until 2060 directly to specific drivers of economic growth including labour productivity capital stocks and land supply as well as assess the indirect effects these impacts have on the rest of the economy and on the economies of other countries it uses a novel production function approach to identify which aspects of economic activity are directly affected by climate change the model results show that damages are projected to rise twice as fast as global economic activity global annual gross domestic product losses are projected to be 1 0 3 3 by 2060 of the impacts that are modelled impacts on labour productivity and agriculture are projected to have the largest negative economic consequences damages from sea level rise grow most rapidly after the middle of the century damages to energy and tourism are very small from a global perspective as benefits in some regions balance damages in others climate induced damages from hurricanes may have significant effects on local communities but the macroeconomic consequences are projected to be very small net economic consequences are projected to be especially large in africa and asia where the regional economies are vulnerable to a range of different climate impacts for some countries in higher latitudes economic benefits can arise from gains in tourism energy and health the global assessment also shows that countries that are relatively less affected by climate change may reap trade gains

water competition through the water energy nexus assessing the economic impacts of climate change in a mediterranean context abstract the impacts of climate change on water resources availability are expected to be adverse especially in drier climate regions such as the mediterranean increased water scarcity will exacerbate competition for water resources not only between sectors but also between countries sharing transboundary river basins due to the mutual dependence of the energy sector on water resources and of the water services provision sector on energy inputs the water energy nexus is acknowledged as a major challenge for the near future with hydropower representing one of the most direct links in this nexus the aim of this paper is to assess the economy wide impacts of the concurrent effects of climate change driven impacts on water availability and the sectoral and regional competition for scarcer water resources in order to accomplish that goal an integrated modelling approach is developed where a computable general equilibrium model including raw water as a production factor is linked to times pt a bottom up model of the energy sector a case study is provided for the mediterranean country of portugal results for 2050 show that macroeconomic impacts are significant and encompass important inter sectoral differences that in turn depend on the degree of competition between sectors impacts are stronger when water consumption by spanish sectors is considered as this intensifies water scarcity in portugal thus the paper allows to gain insight in the broader water energy economy nexus and the additional costs that the dependence on water resources availability in transboundary river basins represents to an economy both aspects being of utmost importance for climate adaptation and energy policy making

estimating workers marginal willingness to pay for job attributes using duration data this paper develops and applies a method for estimating workers marginal willingess to pay for job attributes when workers job choices are characterized by imperfect information and labor market search as an application this paper analyzes the job durations of white males using data from the national longitudinal survey youth cohort and the dictionary of occupational titles estimates of workers willingness to pay derived from the job duration model are compared with those derived from an hedonic wage model

voting behavior under the directional spatial model of electoral competition this paper contrasts voting behavior in multicandidate elections between the proximity and the directional spatial models of electoral competition under the traditionalproximity spatial model a voter s utility for a candidate is a declining function of distance between their respective positions under thedirectional spatial model introduced by rabinowitz and macdonald utility is specified as the scalar product of the vectors representing voter and candidate the present paper specifies and compares regions of candidate support for the two models and for several voting procedures the degree to which each model and voting system favors extremist versus centrist candidates is assessed it is shown that a pure directional model implies that candidates lying in the interior of the convex hull of the other candidates receive no support under the single vote plurality procedure a one parameter family of mixed proximity and directional models may provide more plausible descriptions of voter behavior than either pure model

ranking firms using revealed preference this article estimates workers preferences for firms by studying the structure of employer to employer transitions in u s administrative data the article uses a tool from numerical linear algebra to measure the central tendency of worker flows which is closely related to the ranking of firms revealed by workers choices there is evidence for compensating differentials when workers systematically move to lower paying firms in a way that cannot be accounted for by layoffs or differences in recruiting intensity the estimates suggest that compensating differentials account for over half of the firm component of the variance of earnings

water scarcity and the impact of improved irrigation management a computable general equilibrium analysis increasing water scarcity combined with an increasing demand for food and water for irrigation call for a careful revision of water use in agriculture currently less than 60 of all the water used for irrigation is effectively used by crops based on the new version of the gtap w model we analyze the effect of potential water savings and the welfare implications of improvements in irrigation efficiency worldwide the results show that a water policy directed to improve irrigation efficiency led to global and regional water savings but it is not beneficial for all regions the final effect on regional welfare will depend on the interaction of several different causes for instance higher irrigation efficiency changes opportunity costs and reverses comparative advantages modifying regional trade patterns and welfare for water stressed regions the effects on welfare are mostly positive for nonwater scarce regions the results are more mixed and mostly negative the results show that exports of virtual water are not exclusive of water abundant regions

measuring labor market frictions a cross country comparison in this paper we define and estimate measures of labor market frictions using data on job durations we compare different estimation methods and different types of data we propose and apply an unconditional inference method that can be applied to aggregate duration data it does not require wage data it is invariant to the way in which wages are determined and it allows workers to care about other job characteristics the empirical analysis focuses on france but we perform separate analyses for the united states of america the united kingdom germany and the netherlands we quantify the monopsony power due to search frictions and we examine the policy effects of the minimum wage unemployment benefits and search frictions jel j63 j64

the empirical content of the job search model labor mobility and wage distributions in europe and the us abstract job search models of the labor market hypothesize a very tight correspondence between the determinants of labor turnover and individual wage dynamics on one hand and the determinants of wage dispersion on the other this paper offers a systematic examination of whether this correspondence is present in the data by estimating a rudimentary partial equilibrium job search model on a three year panel of individual worker data covering 10 european countries and the u s we find that our basic job search model fits the data surprisingly well this also allows us to point at a number of interesting empirical regularities about wage distributions our results suggest that cross sectional data on individual wages contain the basic information needed to obtain a reliable measure of the magnitude of labor market frictions as measured by a parameter of the canonical job search model finally we use our results in a cross country comparison of the intensity and nature of job to job turnover we arrange countries into two different groups according to their turnover intensity we further show that the nature of job to job turnover is very different between those two groups turnover is predominantly voluntary in low turnover countries whereas it is to a large extent involuntary in high turnover countries

an integrated economic and distributional analysis of energy policies most public policies particularly those in the energy sphere have not only efficiency but also distributional effects however there is a trade off between modelling approaches suitable for calculating those impacts on the economy for the former most of the studies have been conducted with general equilibrium models whereas partial equilibrium models represent the main approach for distributional analysis this paper proposes a methodology to simultaneously carry out an analysis of the distributional and efficiency consequences of changes in energy taxation in order to do so we have integrated a microeconomic household demand model and a computable general equilibrium model for the spanish economy we illustrate the advantages of this approach by simulating a revenue neutral reform in spanish indirect taxation with a large increase of energy taxes that serve an environmental purpose the results show that the reforms bring about significant efficiency and distributional effects in some cases counterintuitive and demonstrate the academic and social utility of this approximation

equilibrium search and tax credit reform an empirical equilibrium job search model with wage posting is developed to analyze the labor market impact of uk tax reforms the model allows for a rich characterization of the labor market with hours responses accurate representations of the tax and transfer system and both worker and firm heterogeneity the model is estimated with pre reform longitudinal survey data using a semi parametric estimation technique and the impact of actual tax reform policies is simulated the model predicts that the british working families tax credit and contemporaneous reforms increased employment with equilibrium effects found to play a relatively minor role

on the job search with match specific amenities we construct an equilibrium on the job search model in which workers value wages and amenities we show by example that in a standard burdett mortensen model with a distribution of worker tastes over amenities worker mobility need not imply equilibrium wage dispersion

employment vulnerability and earnings in urban west africa this article develops indicators of vulnerability in employment in seven economic capitals of west africa and studies their links with individual incomes quantitative distributional and qualitative analyses show that vulnerability compensating mechanism is mainly seen in the informal sector in the upper tail of the earnings distribution and particularly in the circumstance of visible underemployment employment vulnerability is not compensated for the poorest workers in the private sector long job queues and weak institutional protection of workers may have reduced bargaining power in the formal sector

unemployment risk and wage differentials workers in less secure jobs are often paid less than identical looking workers in more secure jobs we show that this lack of compensating differentials for unemployment risk can arise in equilibrium when all workers are identical and firms differ only in job security i e the probability that the worker is not sent into unemployment in a setting where workers search for new positions both on and off the job the worker s marginal willingness to pay for job security is endogenous increasing with the rent received by a worker in his job and depending on the behavior of all firms in the labor market we solve for the labor market equilibrium and find that wages increase with job security for at least all firms in the risky tail of the distribution of firm level unemployment risk unemployment becomes persistent for low wage and unemployed workers a seeming pattern of unemployment scarring created entirely by firm heterogeneity higher in the wage distribution workers can take wage cuts to move to more stable employment

residential water demand in the northwest of spain a panel of monthly aggregate data from the northwest of spain is used to estimate domestic water demand functions under linear and non linear tariffs price billing climatic and sociodemographic variables are used as explanatory variables the use of intraannual data constitutes a relevant contribution in the european context overall marginal price elasticity estimates lie between 0 12 and 0 17 summer only elasticities and elasticities associated with uses beyond the effectively free allowances seem significantly higher climatic variables significantly affect monthly use although probably less than in other wealthier and drier areas domestic water use appears to be a normal good

potential for pricing policies in water resource management estimation of urban residential water demand in zaragoza spain this paper presents an empirical study to estimate the urban residential water demand in zaragoza spain this allows the testing of the short run sensitivity of water demand to changes in a set of

search for nonwage job characteristics a test of the reservation wage hypothesis previous structural models of job search behavior have been based upon the reservation wage property this article provides estimates of a more general search model that nests models with the reservation wage property the estimates lead to rejection of the reservation wage property the model includes hours of work in the utility function but other nonwage job characteristics can be included as well an experiment based on the estimated parameters indicates that a significant proportion of job offers would be mistakenly predicted to be accepted or rejected under the restrictions implied by the reservation wage property