landlords versus tenants information asymmetry and mismatched preferences for home energy efficiency abstract new zealand homes are poorly insulated by international standards there are government subsidies available for people to improve the energy efficiency of their homes but uptake has been relatively low among owners of rental properties this paper presents the results of a choice experiment used to investigate the preferences of home owners and tenants for insulation and heating upgrades the responses indicate that landlords may underestimate how cold their rental properties are in winter considering the level of discomfort reported by tenants median willingness to pay wtp for improved insulation by landlords is only 50 70 of owner occupier values landlords are willing to pay more for a heating appliance than any other retrofit option in contrast tenants have a low wtp for the heating appliance and would prefer under floor insulation tenants express a willingness to pay higher rent in exchange for improved energy efficiency at a rate that would appear to make such upgrades economic for the landlord information asymmetry and lack of appropriate market signals may be a large part of the reason why many landlords are not willing to pay market prices for energy efficiency upgrades

design and analysis of simulated consumer choice or allocation experiments an approach based on aggregate data the authors integrate concepts in conjoint analysis and discrete choice theory in econometrics to develop a new approach to the design and analysis of controlled consumer choice or resource allocat

the commuting time paradox abstract we examine the conditions for the commuting time paradox which states that the average commuting time does not vary between different periods we develop therefore an equilibrium job search model with endogenously chosen commuting costs presuming wage bargaining between workers and firms the optimally chosen maximum commuting costs jointly maximise the worker s and firm s payoffs we demonstrate that when productivity levels increase over time average commuting costs and average wages both increase which affects the optimally chosen commuting time we establish the conditions under which the paradox holds

paired comparison and contingent valuation approaches to morbidity risk valuation abstract this research uses an experimental approach for eliciting consumer valuations of morbidity risk reductions associated with safter chemical products and introduces the paired comparison questions approach to non market valuation in four applications the paired comparisons approach yields higher morbidity valuations than the more familiar contingent valuation approach however both methodologies produce large values of morbidity reduction benefits in comparison to estimates derived from wage hedonic studies explanations for the difference in the estimates and their magnitudes are suggested along with the public policy implications

should commuting expenses be tax deductible a welfare analysis abstract this paper asks whether or not commuting expenses should be tax deductible in order to answer this question a simple multiregion model of im perfect household and worker mobility is employed the paper shows that deductibility is clearly inefficient only if households are perfectly mobile and if households cannot choose their place of work if the region of work is not exogenously fixed commuting expenses should be deductible at more than 100 even if households choose simultaneously the place of work and the region of residence and even if tax rates are not standardized within the federation

ordering effects and choice set awareness in repeat response stated preference studies we present an experiment designed to investigate the presence and nature of ordering effects within repeat response stated preference sp studies our experiment takes the form of a large sample full factorial discrete choice sp exercise investigating preferences for tap water quality improvements our study simultaneously investigates a variety of different forms of position dependent and precedent dependent ordering effect in preferences for attributes and options and in response randomness we also examine whether advanced disclosure of the choice tasks impacts on the probability of exhibiting ordering effects of those different types we analyze our data both non parametrically and parametrically and find robust evidence for ordering effects we also find that the patterns of order effect in respondents preferences are significantly changed but not eradicated by the advanced disclosure of choice tasks a finding that offers insights into the choice behaviors underpinning order effects

aggregate land rents and aggregate transport costs this paper explores the relationship between aggregate land rents and aggregate transport costs for land markets in which locations differ solely in terms of accessibility that there exists a relationship between land rents and transport costs has been recognized at least since the time of von thunen the precise relationship between the two is however not generally well understood for instance until quite recently it was considered correct to estimate the benefits from a transport improvement by the induced change in aggregate land rents at those locations where travel costs are reduced this procedure can be shown to be correct only in very special circumstances this paper presents a very general characterization of the relationship between aggregate land rents and aggregate transport costs in some special cases the relationship turns out to be remarkably simple for a circular city with linear transport costs aggregate transport costs are precisely twice aggregate land rents independent of the distribution of tastes or income for a linear city with linear transport costs aggregate transport costs are equal to aggregate land rents one corollary of our general analysis is that aggregate land rents may stay the same or actually fall in response to a transport improvement which makes everyone better off in the first section we consider a simple example the second derives the basic theorems of the paper while the third examines their implications for the relationship between the benefits from a transport improvement and the change in aggregate land rents induced by the improvement and in the fourth section we examine the extent to which the theorems of section ii generalize this abstract was borrowed from another version of this item

geography industrial organization and agglomeration this paper makes two contributions to the empirical literature on agglomeration economies first the paper uses a unique and rich database in conjunction with mapping software to measure the geographic extent of agglomerative externalities previous papers have been forced to assume that agglomeration economies are club goods that operate at a metropolitan scale second the paper tests for the existence of organizational agglomeration economies of the kind studied qualitatively by saxenian 1994 this is a potentially important source of increasing returns that previous empirical work has not considered results indicate that localization economies attenuate rapidly and that industrial organization affects the benefits of agglomeration

maximum score estimates of the determinants of residential mobility implications for the value of residential attachment and neighborhood amenities abstract this paper uses a semiparametric empirical technique maximum score to estimate the determinants of the decision of low income renters to move out of their dwelling the maximum score estimates prove to be far more precise than probit estimates the estimates are used to show that low income residents highly value remaining in their dwelling in addition these estimates are used to illustrate an alternative method to measure willingness to pay for neighborhood amenities which we argue to be superior to hedonic based wtp measures

benefit estimates for landscape improvements sequential bayesian design and respondents rationality in a choice experiment a multi attribute stated preference approach is used to value low and high impact actions on four major landscape components addressed by the rural environment protection scheme in ireland several methodological issues are addressed the use of prior beliefs on the relative magnitudes of parameters standardized description of different levels of landscape improvements via image manipulation software adoption of efficiency increasing sequential experimental design and sensitivity of benefit estimates to inclusion of responses from irrational respondents results suggest that bayesian design updating delivers significant efficiency gains without loss in respondent efficiency and estimates are upward biased when irrational respondents are included

optimal design for multinomial choice experiments abstract the author derives d optimal designs for main effects multinomial choice experiments using attribute levels as design parameters the design solutions are similar to standard main effects designs except that one attribute is used to manipulate response probabilities the manipulator is key to implementing optimal designs in practice

hypothetical bias cheap talk and stated willingness to pay for health care subjects with rheumatoid arthritis ra enrolled in an online panel were asked to evaluate pairs of treatment alternatives with different attributes half of the sample saw a cheap talk text preference parameters were estimated using random parameters logit models to account for unobserved taste heterogeneity the models also were estimated in willingness to pay wtp space instead of conventional utility space cheap talk not only affected the coefficient on the cost attribute but also preferences for other attributes wtp estimates were generally lower in cheap talk sample except for the most important attribute and a 2 level attribute subjects who were presented with cheap talk discriminated between the adjoning attribute levels better than the subjects in the control sample

impacts of considering climate variability on investment decisions in ethiopia extreme interannual variability of precipitation within ethiopia is not uncommon inducing droughts or floods and often creating serious repercussions on agricultural and nonagricultural commodities a dynamic climate module is integrated into an economy wide model containing a detailed zonal level agricultural structure this coupled climate economic model is used to evaluate the effects of climate variability on prospective irrigation and infrastructure investment strategies and the ensuing country wide economy the linkages between the dynamic climate module and the economic model are created by the introduction of a climate yield factor cyf defined at the crop level and varied across ethiopian zones nine sets of variable climate vc data are processed by the coupled model generating stochastic wet and dry shocks producing an ensemble of potential economic prediction indicators analysis of gross domestic product and poverty rate reveal a significant overestimation of the country s future welfare under all investment strategies when climate variability is ignored the coupled model ensemble is further utilized for risk assessment to guide ethiopian policy and planning

a productivity model of city crowdedness abstract population density varies widely across us cities a simple static general equilibrium model suggests that moderate sized differences in cities total factor productivity can account for such variation nevertheless the productivity required to sustain above average population densities considerably exceeds estimates of the increase in productivity caused by such high density in contrast increasing returns to scale may be able to sustain multiple equilibria at below average population densities

job search and commuting time we structurally analyze a job search model for unemployed individuals that allows jobs to have different wage commuting time combinations the structural parameter of interest is the degree of willingness to pay for commuting time we use a unique dataset containing responses by unemployed individuals on the optimal search strategy to estimate this parameter without the need to rely on functional form assumptions we address specification errors in the model and measurement errors in the data the results identify types of individuals who have a high disutility of commuting time

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

the impact of utility balance and endogeneity in conjoint analysis adaptive metric utility balance is at the heart of one of the most widely used and studied methods for conjoint analysis we use formal models simulations and empirical data to suggest that adaptive metric utility balance leads to partworth estimates that are relatively biased smaller partworths are upwardly biased relative to larger partworths such relative biases could lead to erroneous managerial decisions metric utility balanced questions are also more likely to be inefficient and in one empirical example contrary to popular wisdom lead to response errors that are at least as large as nonadaptive orthogonal questions we demonstrate that this bias is because of endogeneity caused by a winner s curse shrinkage estimates do not mitigate these biases combined with adaptive metric utility balance shrinkage estimates of heterogeneous partworths are biased downward relative to homogeneous partworths although biases can affect managerial decisions our data suggest that empirically biases and inefficiencies are of the order of response errors we examine viable alternatives to metric utility balance that researchers can use without biases or inefficiencies to retain the desired properties of 1 individual level adaptation and 2 challenging questions

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

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

optimality free mobility and the regional authority in a federation abstract this paper examines the efficiency properties of a federation characterized by strategically competing regions and freely mobile homogeneous individuals analyses of this economy have concluded that achieving a pareto optimal will require intervention by a national authority this paper makes one basic point the nash equilibrium of regional authority behavior is pareto optimal the implication is that there is no role for a national authority in either providing interregional transfers or correcting for decentralized provision of public goods the nash equilibrium involves samuelson public goods provision and regions purchasing preferred population distributions with optimal interregional transfers

using choice experiments to estimate consumer valuation the role of experimental design and attribute information loads with fixed dimensionality of choice experiments ces previous simulation results show that d optimal design with correct a priori information generates more accurate valuation in the absence of a priori information random designs and designs incorporate attribute interactions result in more precise valuation estimates in this article monte carlo simulations demonstrate that the performances of different design strategies are affected by attribute information loads in ces consumer valuation estimates in simulation settings vary with the number of attributes

optimal road capacity in the presence of unpriced congestion abstract this paper studies how the optimal capacity of a road is affected by a pricing constraint which keeps the toll fixed below its optimal value the answer is found to depend on the value of the price elasticity of travel demand at the second best optimum the pricing constraint lowers the optimal capacity if the price elasticity is sufficiently high but under reasonable assumptions the pricing constraint raises the optimal capacity if the price elasticity is less than the ratio of the consumer price of travel to the private congestion cost at the second best optimum this ratio cannot be less than one

second best cost benefit analysis in monopolistic competition models of urban agglomeration abstract this paper examines the agglomeration benefits of a transportation improvement in a city by modeling the microstructure of urban agglomeration based on monopolistic competition of differentiated intermediate products properly extended to include variety distortion in addition to price distortion harberger s measure of excess burden yields the agglomeration benefits the agglomeration benefits are positive if increasing the variety is procompetitive however in the anticompetitive case we cannot exclude the possibility of negative additional benefits if there are multiple cities the net agglomeration benefits can be negative when other cities that experience a reduction in population have larger agglomeration economies

the impact of global warming on agriculture a ricardian analysis reply we measure the economic impact of climate on land prices using cross sectional data on climate farmland prices and other economic and geophysical data for almost 3 000 counties in the united states we find that higher temperatures in all seasons except autumn reduce average farm values while more precipitation outside of autumn increases farm values applying the model to a global warming scenario shows a significantly lower estimated impact of global warming on u s agriculture than the traditional production function approach and in one case suggests that even without co sub 2 fertilization global warming may have economic benefits for agriculture 16 refs 5 figs 5 tabs

optimal policies in cities with congestion and agglomeration externalities congestion tolls labor subsidies and place based strategies abstract this paper develops a spatial general equilibrium model that accommodates both congestion and agglomeration externalities while firms and households land use decisions are endogenous across continuous space focusing on the interaction between externalities and land use patterns we examine the efficiencies of first best policies and second best pricing and place based strategies using numerical simulations a first best policy must combine both pigouvian congestion tolling pct and pigouvian labor subsidies pls instruments or design an optimal toll or subsidy internalizing agglomeration externalities or congestion externalities we also examine second best pricing policies if only one instrument is adopted congestion pricing policies alone e g a partial pct or a flat rate toll can improve social welfare only in heavy congestion cities and their welfare gains may be insignificant e g below 10 of the welfare improvement achieved by first best policies in contrast second best labor subsidy policies alone are a more effective alternative to first best policies as to place based policies the firm cluster zoning fcz regulation is more efficient than the urban growth boundary ugb policy ugbs only have small effects on the agglomeration economy but could worsen land market distortions via residential rent escalation effects these findings suggest that it is important to internalize business land use decisions and relax monocentricity assumptions in order to appreciate the interplay of both urban externalities since spatial adaptations to policy interventions can distort system efficiencies

optimal tax and public investment rules for congestion type of externalities optimal government policy is considered in a second best framework where consumers and producers cause an externality of the congestion type and income distribution issues are taken into account the theoretical results of the optimal tax literature are adapted using the concept of the net social pigouvian tax an illustrative age model uncovers the relative importance of its components the model demonstrates that the level of the externality tax does not depend strongly on distribution concerns as reoptimization of the other taxes ensures that the income distribution objective is reached the model also allows us to study the interaction between externality taxes and public abatement

a structural dynamic analysis of job turnover and the costs associated with moving to another job this paper provides an empirical analysis of the labor market behavior of employed individuals using a structural on the job search model the costs associated with moving to another job are allowed to be nonzero and may depend on the wage level it is shown that under certain conditions the optimal strategy has the reservation wage property the model is estimated using data on job durations and subjective responses concerning the search strategy the results reveal some strong sources of inflexibility of the labor market copyright 1992 by royal economic society

congestion agglomeration and the structure of cities abstract congestion costs in urban areas are significant and clearly represent a negative externality nonetheless economists also recognize the production advantages of urban density in the form of positive agglomeration externalities the long run equilibrium outcomes in economies with multiple correlated but offsetting externalities have yet to be fully explored in the literature therefore i develop a spatial equilibrium model of urban structure that includes both congestion costs and agglomeration externalities i then estimate the structural parameters of the model using a computational algorithm to match the spatial distribution of employment population land use land rents and commute times in the data policy simulations based on the estimates suggest that congestion pricing may have ambiguous consequences for economic welfare

the efficiency of equilibrium traffic flows abstract this paper studies the behavior of an optimizing driver on a freeway and the equilibrium speed at which specified flows of traffic move it shows that both when passing is not allowed the standard car following framework of the engineering literature and when it is permitted the equilibria tend to exhibit speeds below the pareto optimal speeds the flat congestion toll proposed by oron pines and sheshinski 1973 does not by itself bring about pareto optimality

the trade off between money and travel time a test of the theory of reference dependent preferences we formulate a model of reference dependent preferences based on the marginal rate of substitution at the reference point of a reference free utility function using binary choices on the trade off between money and travel time reference dependence is captured by value functions that are centered at the reference the model predicts a directly testable relationship among four commonly used valuation measures willingness to pay wtp willingness to accept wta equivalent gain eg and equivalent loss el moreover we show that the model allows recovering the underlying reference free value of time based on a large survey data set we estimate an econometric version of the model allowing for both observed and unobserved heterogeneity in a series of tests of high statistical power we find that the relationship among the four valuation measures conforms to our model and that the constraints on the parameters implied by the model are met the gap between wtp and wta is found to be a factor of four loss aversion plays an important role in explaining responses moreover participants are more loss averse in the time dimension than the cost dimension we further find evidence of asymmetrically diminishing sensitivity finally we show that the fraction of mistakes in the sense that participants are observed to sometimes select dominated options varies systematically in a way consistent with the model of reference dependence the results of the paper have important implications for the evaluation of infrastructure investment and pricing reforms in the transport sector

spatial mismatch and costly suburban commutes can commuting subsidies help proponents of the spatial mismatch hypothesis argue that job decentralisation harms low income residents of central cities because of barriers that limit their access to suburban labour markets such barriers can take the form of housing discrimination exclusionary zoning or long and difficult commutes this paper uses an urban equilibrium model of spatial mismatch to analyse the impact of commuting subsidies on the welfare of low income central city households with restricted mobility specifically it seeks to determine how effective such subsidies are at reducing the welfare impact of spatial mismatch while subsidised outward commuting is found to raise the welfare of the low income households the welfare gains are only a small portion of the welfare loss due to spatial mismatch

estimating willingness to pay do health and environmental researchers have different methodological standards health and environmental economists have been employing stated preference sp methods such as conjoint analysis or contingent valuation to estimate the monetary value of public health interventions and environmental goods and services however the quality of data and the validity of results are sensitive to a number of decisions researchers make the aim of this study is to compare the degree of the current consensus among active researchers in the rapidly evolving area of sp methods in health and environmental valuation we surveyed researchers who have published manuscripts on sp methods in the last 10 years researchers were presented with hypothetical sp studies with different attributes they were first asked which study they would recommend to use to inform policy decisions and then asked which study has better quality our results show that good practice sp methods vary among study features and among researchers with different amounts and kinds of research experience although health researchers

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

optimal experimental design for double bounded dichotomous choice contingent valuation the double bounded dichotomous choice model is becoming popular in the contingent valuation literature this technique considers the responses to two bids the second one being determined according to the response to the first and it has been shown to be statistically more efficient than the standard single bounded model in this paper the issue of the optimal choice of bid values for the double bounded logit model is addressed these designs are derived to satisfy the d optimal c optimal and fiducial method criteria

optimal designs for discrete choice contingent valuation surveys single bound double bound and bivariate models this paper finds the designs for discrete choice contingent valuation surveys which maximize the precision of a statistic of interest about the public s willingness to pay wtp for a change in the environmental quality such as median wtp an optimization problem is set up in which the efficiency of the estimate of median wtp or a related concept is the objective function to optimize with respect to the survey design i e the set of bids offered to the respondents in deriving the optimal designs we consider alternative econometric models such as the basic single bound model that uses the responses to the first payment question the traditional interval data or double bound model for surveys with a follow up payment question and the recently proposed bivariate binary response model simulations are carried out to compare the alternative design principles and assess their performances with respect to the statistic of primary interest median wtp and other welfare measures such as mean wtp other designs that are constructed ad hoc are also examined

designing conjoint choice experiments using managers prior beliefs abstract the authors provide more efficient designs for conjoint choice experiments based on prior information elicited from managers about the parameters and their associated uncertainty the authors use a bayesian design procedure that assumes a prior distribution of likely parameter values and optimizes the design over that distribution the authors propose a way to elicit prior information from managers and show in monte carlo studies that the procedure provides more efficient designs than the current procedures the authors provide an empirical application in which they elicit prior information on the parameter values and the associated uncertainty from managers here the bayesian design provides 30 50 lower standard errors of the estimates and an expected predictive validity that is approximately 20 higher

evaluating impacts from noxious facilities including public preferences in current siting mechanisms abstract this paper describes an approach to facility siting that ranks potential sites in terms of their social impacts a contingent choice survey based on paired comparisons is used to construct a utility index to rank sites consistent with predicting results of a hypothetical referendum based on the attributes of the sites the method is likely to be acceptable to public decision makers since it is analogous to site scoring methods that have been commonly used indeed our approach is currently being employed as part of a larger landfill site selection process in the state of rhode island

monetary valuation of insurance against flood risk under climate change climate change is projected to increase the risk of natural disasters such as floods and storms in certain regions this is likely to raise the demand for natural disaster insurance we present a stated preference survey using choice modeling with mixed logit estimation methods in order to examine the effects of climate change and the availability of government compensation on the demand for flood insurance by dutch homeowners currently no private insurance against flood damage is offered in the netherlands the results indicate that there are opportunities for the development of a flood insurance market 2012 by the economics department of the university of pennsylvania and the osaka university institute of social and economic research association

interregional spillovers in the presence of perfect and imperfect household mobility abstract when households are immobile across regions the decentralized provision of public goods that generate interregional benefit spillovers is inefficiently low we analyze this problem in an environment of interregional household migration and obtain the following results if households are perfectly mobile across regions then the decentralized provision of public goods generating spillovers is socially efficient there is no need for central government intervention if households are attached to particular regions for cultural or nationalistic reasons however at least one of two regions undersupplies the public good central government intervention can enhance efficiency

when are anonymous congestion charges consistent with marginal cost pricing abstract there are constraints on pricing congestible facilities first if heterogeneous users are observationally indistinguishable then congestion charges must be anonymous second the time variation of congestion charges may be constrained do these constraints undermine the feasibility of marginal cost pricing and hence the applicability of the first best theory of congestible facilities for an important class of congestible facilities we show that if heterogeneous users behave identically when using the facility and if the time variation of congestion charges is unconstrained then marginal cost pricing is feasible with anonymous congestion charges if however the time variation of congestion charges is constrained optimal pricing with anonymous congestion charges entails ramsey pricing

research note on managerially efficient experimental designs in most marketing experiments managerial decisions are not based directly on the estimates of the parameters but rather on functions of these estimates for example many managerial decisions are driven by whether or not a feature is valued more than the price the consumer will be asked to pay in other cases some managerial decisions are weighed more heavily than others the standard measures used to evaluate experimental designs e g a efficiency or d efficiency do not accommodate these phenomena we propose alternative managerial efficiency criteria m errors that are relatively easy to implement we explore their properties suggest practical algorithms to decrease errors and provide illustrative examples realistic examples suggest improvements of as much as 30 in managerial efficiency we close by considering approximations for nonlinear criteria and extensions to choice based experiments

labour supply and commuting abstract we examine the effect of commuting distance on workers labour supply patterns distinguishing between weekly labour supply number of workdays per week and daily labour supply we account for endogeneity of distance by using employer induced changes in distance in germany distance has a slight positive effect on daily and weekly labour supply but no effect on the number of workdays the effect of distance on labour supply patterns is stronger for female workers but it is still small

preferences for public lands management under competing uses the case of yellowstone national park we examine snowmobile use conflict in yellowstone national park to assess the effect of different winter management policies on heterogeneous visitors welfare using a stated preference choice experiment we quantify welfare changes for snowmobile riders and non riders under different snowmobile restrictions a key determinant of welfare change is visitors willingness to trade off reduced snowmobile access for improved ambient conditions in the park our findings support the notion that welfare losses to snowmobile riders could be offset by welfare gains to non riders but net benefits will depend on the number of riders and non riders and the specifics of the policy

growth options and poverty reduction in ethiopia an economy wide model analysis abstract this study focuses on which agricultural subsectors are important in ethiopia s economic growth and poverty reduction and what kind of agricultural and nonagricultural growth is needed to achieve the millennium development goal of halving the incidence of poverty by 2015 a spatially disaggregated economy wide model was developed enabling the analysis of growth and poverty reduction linkages at national and regional levels using national household surveys agricultural sample surveys geographic information systems and other national and regional data the study reveals that agriculture can play a central role in decreasing poverty and increasing growth in ethiopia within the agriculture growth in cereals and other staple crops should receive priority agricultural growth also requires concurrent investments in roads and other market conditions at the subnational level similar growth rates within agricultural subsectors have different effects on poverty necessitating regionally based strategies for growth and poverty reduction

the influence of individuals in forming collective household preferences for water quality preference for water quality and its nonmarket valuation can be used to inform the development of pricing policies and long term supply strategies tap water quality is a household concern the objective status quo of water provision varies between households and not between individuals within households while charges are levied on households not individuals individual preferences differ from collective preferences in households where there are two adults we examine the preferences of each separately and then as a couple in collective decisions we show the level of influence each has in developing the collective decision process we use discrete choice experiments to model preference heterogeneity across three experiments on women men and on both we propose a random utility model which decomposes the error structure in the utility of alternatives so as to identify the individual influence in collective decisions this approach to choice data analysis is new to environmental economics

uncovering the distribution of motorists preferences for travel time and reliability we apply recent econometric advances to study the distribution of commuters preferences for speedy and reliable highway travel our analysis applies mixed logit to combined revealed and stated preference data on commuter choices of whether to pay a toll for congestion free express travel we find that motorists exhibit high values of travel time and reliability and substantial heterogeneity in those values we suggest that road pricing policies designed to cater to such varying preferences can improve efficiency and reduce the disparity of welfare impacts compared with recent pricing experiments

urban economic structure technological externalities and intensive land use in china based on theories about the influences of urban economic structure on intensive land use this study analyses the impacts of two main types of urban economic structure in china specialized economy and diversified economy on intensive urban land use using spatial panel techniques and large scale urban panel data the results indicate that there is significant spatial correlation in urban economic structure as well as intensive land use in every city a diversified economy has a significant positive effect on the improvement of intensive land use whereas the effect of a specialized economy is not significant the effects of the diversified and specialized economies on intensive land use through technological externalities are either negative or positive depending on city size while the threshold effect the minimum threshold population for the economy to stimulate intensive land use is about 496 700 people for the specialized economy and about 546 000 people for the diversified economy

transport tax reform commuting and endogenous values of time abstract we consider a model of urban transport with two trip purposes commuting assumed perfectly complementary to labour supply and noncommuting to analyse the effects of transport tax reform on the value of time and marginal external congestion costs higher commuting taxes plausibly reduce time values but higher noncommuting transport prices will typically raise the value of time the intuition for this latter finding is that the reduction in congestion that follows from the tax increase itself raises net wages per hour of work inclusive of commuting time empirical illustrations with belgian data show a potentially large effect of transport tax reform on time values in quite a few of the tax reforms studied traffic levels are reduced but the increase in time values implies that marginal external congestion costs actually increase

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

supplier choice and wtp for electricity attributes in an emerging market the role of perceived past experience environmental concern and energy saving behavior abstract this study analyzes customers preferences and their willingness to pay wtp for certain service attributes in an electricity supplier choice context specifically a stated preference choice experiment is conducted in the canary islands residential market where limited competition exists preferences for different electricity suppliers and three level of service attributes are investigated namely supply reliability share of renewable energies and availability of a complementary energy audit service the results might be interpreted as an indication of different aspects new firms need to consider if they plan to enter in the market there is an opportunity for new companies to establish in the market though evidence of brand loyalty to the current company and or significant switching costs are also found especially in the case of older people regarding the estimated wtp several results should be highlighted first customers who have experienced more serious outages in the past tend to show a higher wtp to reduce the outage frequency second highly educated respondents those who state a great concern for the greenhouse gases ghg emissions and those who carry out energy saving actions in their homes exhibit a larger wtp for renewable energies this empirical evidence provides useful information for authorities responsible for energy policy design

attachment to home and efficient purchases of population in a fiscal externality economy abstract this paper examines the efficiency properties of an economy characterized by strategically competing regions and individuals with varying degrees of attachment to home in an otherwise standard fiscal externality setting regional authorities may make interregional transfers in purchasing preferred populations however there is a range of distributions of resources over which neither region makes transfers nevertheless all equilibrium allocations resulting from the nash behavior of regional authorities including those that involve no transfers are efficient therefore in contrast to the standard conclusions of the fiscal externality literature there is no efficiency role for a central authority

the value of automobile travel time implications for congestion policy abstract public policy has remained stoutly resistant to the economic profession s call to use congestion tolls to minimize the social costs from automobile congestion this paper explores this issue by using stated preference models to estimate the value that commuters are willing to pay to save travel time we find that this value is low and surprisingly insensitive to travel conditions and how toll revenues are used it appears that even high income commuters having adjusted to congestion through their modal residential workplace and departure time choices simply do not value travel time savings enough to benefit substantially from tolls

smart cafe cities testing human capital externalities in the boston metropolitan area abstract existing studies have explored only one or in some cases two mechanisms by which human capital externalities percolate at the macrogeographic levels this study however uses the 1990 massachusetts census data to test four mechanisms at the microgeographic levels in the boston metropolitan area labor market we propose that individual workers can learn from their occupational and industrial peers in the same local labor market through four channels depth of human capital stock marshallian labor market externalities jacobs labor market externalities and thickness of the local labor market we find that all types of human capital externalities are significant across census blocks different types of externalities attenuate at different speeds over distances for example the effect of human capital depth decays rapidly beyond three miles away from block centroids we conclude that knowledge spillovers are very localized within a microgeographic scope in cities that we call smart cafe cities

how to make the metropolitan area work neither big government nor laissez faire we study how political boundaries and tax competition among jurisdictions interact with the labor and land markets to determine the economic structure and performance of metropolitan areas contrary to general belief institutional fragmentation and cross border commuting need not be welfare decreasing but the size of the central city matters for welfare under tax competition the central business district is too small tax competition also prevents public policy enhancing global productivity to produce their full impact although our results support the idea of decentralizing the supply of local public services by independent jurisdictions they also highlight the need of coordinating tax policies

willingness to pay estimation with choice based conjoint analysis addressing extreme response behavior with individually adapted designs the increasing consideration of behavioral aspects in operations management models has prompted greater use of choice based conjoint cbc studies in operations research such studies can elicit consumers willingness to pay wtp a core input for many optimization models however optimization models can yield valid results only if consumers wtp is estimated accurately a simulation study and two field studies show that extreme response behavior in cbc studies such that consumers always or never choose the no purchase option harms the validity of wtp estimates reporting the share of consumers who always and never select the no purchase option allows for detecting extreme response behavior this study suggests an individually adapted design that avoids extreme response behavior and thus significantly improves wtp estimation accuracy

wage variation resulting from staggered work hours abstract this paper presents a theoretical basis for varying wage rates with staggered work hours urban scale economies and decreasing marginal returns to labor are shown to exert opposite but not necessarily equal influences on marginal wages an ordered probit model is used with survey data from singapore to estimate income as a function of work start time results indicate the presence of production effects due to staggered work hours urban scale economies are shown to dominate the effect of decreasing marginal returns

valuing risk in the workplace market price willingness to pay and the optimal provision of safety the theory of compensating wage differentials attributable to adam smith suggests that jobs with disagreeable characteristics will command high wages ceteris paribus most empirical tests of this theory with hedonic wage equations implicitly assume that workers willingness to pay for risk reduction safety in the workplace through diminished wages and market valuations of the price of these reductions are equivalent it is shown that this is not the case within the manufacturing sector where willingness to pay exceeds the price cost of risk reduction at current levels of risk exposure implications for implied value of life estimates are also examined copyright 1990 by mit press

political economy of commuting subsidies abstract we study the political economy of commuting subsidies in a model of a monocentric city with two income classes depending on housing demand and transport costs either the rich or the poor live in the central city and the other group in the suburbs commuting subsidies increase the net income of those with long commutes or high transport costs they also affect land rents and therefore the income of landowners the paper studies how the locational pattern of the two income classes and the incidence of landownership affects the support for commuting subsidies

traffic congestion s economic impacts evidence from us metropolitan regions traffic congestion alleviation has long been a common core transport policy objective but it remains unclear under which conditions this universal byproduct of urban life also impedes the economy using panel data for 88 us metropolitan statistical areas this study estimates congestion s drag on employment growth 1993 to 2008 and productivity growth per worker 2001 to 2007 using instrumental variables results suggest that congestion slows job growth above thresholds of approximately 4 5 minutes of delay per one way auto commute and 11 000 average daily traffic adt per lane on average across the regional freeway network while higher adt per freeway lane appears to slow productivity growth there is no evidence of congestion induced travel delay impeding productivity growth results suggest that the strict policy focus on travel time savings may be misplaced and instead better outlooks for managing congestion s economic drag lie in prioritising the economically most important trips perhaps through road pricing or in providing alternative travel capacity to enable access despite congestion

congestion tolling with agglomeration externalities abstract consider an urban economy with two types of externalities negative traffic congestion externalities and positive agglomeration externalities deriving from non market interaction suppose that urban travel can be tolled that non market interaction cannot be subsidized and that non market interaction is stimulated by a reduction in travel costs then the optimal toll is below the congestion externality cost this paper explores this line of reasoning

revenue recycling and the welfare effects of road pricing the authors explore the interaction between taxes on work related traffic congestion and preexisting distortionary taxes in the labor market a congestion tax raises the overall costs of commuting to work and discourages labor force participation at the margin when revenues are returned in lump sum transfers the resulting efficiency loss in the labor market can be larger that the pigouvian efficiency gains from internalizing the congestion externality by contrast if congestion tax revenues are used to reduce labor taxes the net impact on the labor supply is positive and the efficiency gain in the labor market can raise the overall welfare gains of the congestion tax by as much as 100 percent recycling congestion tax revenues in public transit subsidies produces a positive but smaller impact on the labor supply in short the authors results indicate that the presence of preexisting tax distortions and the form of revenue recycling can crucially affect the size and possibly even the sign of the welfare effect of road pricing schemes the efficiency gains from recycling congestion tax revenues in other tax reductions can amount to several times the pigouvian welfare gains from congestion reduction

towards a general theory of mixed zones the role of congestion mixed commercial and residential land use is observed in most cities around the world despite its ubiquity urban economic theory is rather silent on the formation of mixed land use in particular standard bid rent models typically predict complete segregation of land use the two main exceptions are fujita and ogawa 1982 and lucas and rossi hansberg 2002 who introduce bid rent models that allow for endogenous business and residential location choice as well as employment agglomeration externalities these models predict zones that are characterized by a restrictive type of mixed land use where there are as many residents as jobs at every location we extend the latter model by introducing a traffic congestion external effect that adds a degree of freedom to the shape of the bid rent curves and allows them to coincide over contiguous locations in the city where commuting takes place we show that this combination of congestion and agglomeration externalities leads to a general type of mixed land use zones

wage differentials employer size and unemployment the unique equilibrium solution to a game in which a continuum of individual employers choose permanent wage offers and a continuum of workers search by sequentially sampling from the set of offers is characterized wage dispersion is a robust outcome provided that workers search while employed as well as when unemployed the unique nondegenerate equilibrium distribution of wage offers is constructed for three cases 1 identical workers and employers 2 identical employers and an atomless distribution of worker supply prices and 3 identical workers and an atomless distribution of job productivities copyright 1998 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

subsidies for intracity and intercity commuting this paper analyzes subsidies for intracity and intercity commuting in an urban economics framework with two cities and agglomeration externalities where workers may commute within and between cities first commuting subsidies serve to internalize agglomeration externalities intracity commuting subsidies give incentives to move to the larger city and intercity commuting subsidies make residents of the periphery commute to the core second if agglomeration rents are locally captured commuting subsidies act as a welfare enhancing transfer from the core to the periphery

commuting and taxes theory empirics and welfare implications we examine the effect of interstate differences in income taxes on commuting times our theoretical model introduces a border into a model of an urban area and shows that differences in average tax rates distort commuting patterns but the sign of the effect depends on whether taxes are residence based or employment based empirically tax differentials have a large effect on commuting times for affluent households and mobile households we show that commuting times are a sufficient statistic to measure the spatial welfare effects of tax policy the model and empirical design can be used by economists to study other policy differences this article is protected by copyright all rights reserved