pro competitive effects of trade reform results from a cge model of cameroon abstract how likely is trade liberalization to produce efficiency gains in the presence of imperfect competition scale economies and higher than average wages in the modern sectors all common features in developing economies these features create a potential conflict to the extent that traditional notions of comparative advantage lead us to expect that the modern sectors will be squeezed with liberalization in this paper we investigate this issue by using an applied general equilibrium model calibrated to cameroonian data under perfect competition we find that the welfare effect is a wash since the beneficial consequence of expanded imports is offset by the reduction in employment in the modern high wage sectors under imperfect competition by contrast trade liberalization produces welfare gains of the order of 1 to 2 percent of income the key is the pro competitive effect of liberalization domestic firms in the modern sectors now perceive themselves as facing a higher elasticity of demand which spurs them to increase production

ramsey discounting of ecosystem services most ecosystem services which are essential for human well being are globally declining while the production of consumption goods measured by gdp is still growing to adequately account for this opposite development in public cost benefit analyses it has been proposed based on a two goods extension of the ramsey growth model to apply good specific discount rates for manufactured consumption goods and for ecosystem services using empirical data for ten ecosystem services across five countries and the world at large we estimated the difference between the discount rates for ecosystem services and for manufactured consumption goods in a conservative estimate we found that ecosystem services in all countries should be discounted at rates that are significantly lower than the ones for manufactured consumption goods on global average ecosystem services should be discounted at a rate that is 0 9 pm 0 3 points lower than the one for manufactured consumption goods the difference is larger in less developed countries and smaller in more developed countries this result supports and substantiates the suggestion that public cost benefit analyses should use country specific dual discount rates one for manufactured consumption goods and one for ecosystem services

offshoring and unemployment the role of search frictions labor mobility abstract in a two sector general equilibrium model with labor market search frictions we find that the wage increases and sectoral unemployment decreases upon offshoring in the presence of perfect intersectoral labor mobility if as a result labor moves to the sector with the lower or equal vacancy costs there is an unambiguous decrease in economywide unemployment with imperfect intersectoral labor mobility unemployment in the offshoring sector can rise with an unambiguous unemployment reduction in the non offshoring sector imperfect labor mobility can result in a mixed equilibrium in which only some firms offshore with unemployment in the offshoring sector rising

modelling the non market environmental costs and benefits of biodiversity projects using contingent valuation data cv studies rarely ask willingness to accept wta questions yet there are a range of environmentalprojects where there are likely to be potential losersas well as gainers this paper presents evidence fromsix biodiversity projects that the inclusion ofcontingent compensation payments from thoserespondents who preferred the status quo cansubstantially reduce net project benefits even whenthe proportion of losers is relatively small astatistical model for estimating the mean welfaremeasure from dichotomous choice data which allows forboth positive wtp zero wtp and wta is described asmany environmental projects are likely to create bothgainers and losers we recommend that cv analysts giveserious consideration to the collection and analysisof wta data otherwise they risk generating biasedestimates of project benefits

trade and search generated unemployment we argue that trade economists should begin to seriously consider environments in which unemployment is carefully modeled we introduce such a model derive several results and compare them to results derived in full employment models we argue that some traditional results are probably too narrow the determinants of comparative advantage and that some results do not generalize to models with unemployment the link between trade and income distribution for employed factors we also show that in some important cases results do generalize there is an extended stolper samuelson theorem that links trade to the distribution of income for searching factors and that our model allows us to address issues that traditional models cannot handle the impact of trade on unemployment and the welfare of the unemployed 1999 elsevier science b v all rights reserved

willingness to accept willingness to pay and the income effect abstract the gap between willingness to pay wtp and willingness to accept wta has previously been studied by searching for evidence of substitutability the neoclassical hypothesis or status quo bias testing for neoclassical versus psychological theories of preferences we study the gap differently asking whether the observed pairs of wta and wtp are consistent with neoclassical preferences we use sugden s alternatives to the neoclassical theory of choice in i bateman k g willis eds valuing environmental preferences theory and practice of the contingent valuation method in the us eu and developing countries oxford university press oxford pp 152 180 chapter 6 result showing that the effect of income on wtp can be approximated from information on the ratio wta wtp drawing inferences from a meta analysis of 201 wta wtp ratios we conclude that the data are not consistent with neoclassical preferences

trade liberalization and local labor market adjustment in south africa abstract despite a large literature analyzing trade liberalization in developing countries little evidence exists around its effects in sub saharan african economies characterized by high levels of baseline unemployment and weak manufacturing sectors using a local labor market approach we investigate the causal effects of tariff reforms implemented in south africa between 1994 and 2004 on labor market outcomes at the individual level more specifically we construct a district level measure of exposure to tariff reductions equal to a weighted average of industry tariffs using baseline industry shares as weights and estimate the effect of this shock on local economies we find that workers in districts facing larger tariff reductions experience a significant decline in both formal and informal employment in the tradable sector driven primarily by a decline in manufacturing employment relative to workers in districts less exposed to these reductions there is no evidence of any significant effect on wages for those who remain employed however displaced workers do not show any evidence of transitions into other sectors or migration to less affected regions rather they are more likely to become discouraged workers or exit the labor force entirely and show an increased probability of accessing government transfers

does don t know mean no analysis of don t know responses in dichotomous choice contingent valuation questions the don t know response option in contingent valuation dichotomous choice questions is analysed using data from both willingness to pay and willingness to accept studies an empirical analysis is conducted to determine whether respondents are stating a response similar to yes or no responses or a middle response it is found that don t know responses are similar to no responses in the willingness to pay study in the willingness to accept study it is found that the don t know responses are similar to a middle response it is further suggested that researchers consider calculating ambivalence bounds when a don t know response is a middle response

trade turnover and tithing this paper examines the hypothesis that turnover affects trade preferences high turnover industries are similar to the stolper samuelson assumption of perfect factor mobility so factor of production drives trade preferences among low turnover industries as in the specific factors model net export position determines trade preferences we show that pac contribution patterns are consistent with this hypothesis in high turnover industries capital groups give significantly larger shares of their campaign contributions to free trade supporters than labor groups do among low turnover industries on the other hand exporting and import competing groups differ significantly in their financial support for free traders d 2004 elsevier b v all rights reserved

poverty labor markets and trade liberalization in indonesia abstract we measure the effects of trade liberalization over the period of 1993 2002 on regional poverty levels in 259 indonesian districts and investigate the labor market mechanisms behind these effects the identification strategy relies on combining information on initial regional labor and product market structure with the exogenous tariff reduction schedule over four three year periods we add to the literature on local labor market effects of trade policies by distinguishing between tariffs for output markets and for intermediate inputs and finding that poverty reduced especially in districts with a greater sector exposure to input tariff liberalization among the potential channels behind this effect we show that low skilled work participation and middle skilled wages were more responsive to reductions in import tariffs on intermediate goods than to reductions in import tariffs on final outputs these results point towards increasing firm competitiveness as a driving factor behind the beneficial poverty effects

a new paradigm for valuing non market goods using referendum data maximum likelihood estimation by censored logistic regression abstract this paper challenges the w m hanemann amer j agr econom 66 332 341 1984 and c sellar j p chavas and j r stoll j environ econom management 13 382 390 1986 utilizations of logit models to estimate the value of non market resources from referendum survey data these data are more informative than conventional choice data the random utility interpretation of logit models is therefore too restrictive bypassing the utility function entirely it will be shown that parameters and standard errors for utility theoretic inverse hicksian demand functions can be extracted directly and much more simply estimated demand functions need not be limited to those corresponding to the linear in parameters utility difference specifications which can be handled by packaged logit programs

limits to substitution between ecosystem services and manufactured goods and implications for social discounting this paper examines implications of limits to substitution for estimating substitutability between ecosystem services and manufactured goods and for social discounting based on a model that accounts for a subsistence requirement in the consumption of ecosystem services we provide empirical evidence on substitution elasticities we find an initial mean elasticity of substitution of two which declines over time towards complementarity we subsequently extend the theory of dual discounting by introducing a subsistence requirement the relative price of ecosystem services is non constant and grows without bound as the consumption of ecosystem services declines towards the subsistence level an application suggests that the initial discount rate for ecosystem services is more than a percentage point lower as compared to manufactured goods this difference increases by a further half percentage point over a 300 year time horizon the results underscore the importance of considering limited substitutability in long term public project appraisal

the impact of public information on the stock market we study the relation between the number of news announcements reported daily by dow jones company and aggregate measures of securities market activity including trading volume and market returns we find that the number of dow jones announcements and market activity are directly related and that the results are robust to the addition of factors previously found to influence financial markets such as day of the week dummy variables news importance as proxied by large new york times headlines and major macroeconomic announcements and non information sources of market activity as measured by dividend capture and triple witching trading however the observed relation between news and market activity is not particularly strong and the patterns in news announcements do not explain the day of the week seasonalities in market activity our analysis of the dow jones database confirms the difficulty of linking volume and volatility to observed measures of information

is the income elasticity of environmental improvements less than one we estimated the income elasticity of environmental improvements for a number of european data sets the value of this parameter is consistently found to be less than one with few exceptions our findings are compared with state of the art contingent valuation studies from other countries we also compared our findings with those reported in the literature on charitable donations and corporate donations these studies show a similar pattern donations decrease as a percentage of income as income increases

trade liberalization and unemployment theory and evidence from india abstract a widely held view among the public is that trade liberalization increases unemployment using state and industry level unemployment and trade protection data from india we find no evidence of any unemployment increasing effect of trade reforms in fact our state level analysis reveals that urban unemployment declines with trade liberalization in states with flexible labor markets and larger employment shares in net exporter industries moreover our industry level analysis indicates that workers in industries experiencing greater reductions in trade protection were less likely to become unemployed especially in net export industries our results can be explained within a theoretical framework incorporating trade and search generated unemployment and some institutional features of the indian economy

trade liberalization and regional dynamics abstract we study the evolution of trade liberalization s effects on brazilian local labor markets regions facing larger tariff cuts experienced prolonged declines in formal sector employment and

income treatment effects in contingent valuation the case of the swedish predator policy this paper provides case study evidence on two relevant issues in estimating the relationship between wtp and income using contingent valuation 1 the choice of income measure and 2 the modelling choice addressing these issues a sensitivity analysis is performed on a dataset concerning implementation of the swedish predator policy the results show that the estimated income elasticity of wtp varies between 0 12 and 0 40 for the models estimated the main conclusion drawn from the analysis is that controlling for the number of adults in the household is important for finding a significant income effect when the household income measure is used besides this finding the empirical analysis finds little support for the hypothesis that the choice of income measure and modelling assumptions significantly influence the overall model fit

international trade and unemployment theory and cross national evidence abstract we present a model of trade and search induced unemployment where trade results from heckscher ohlin h o and or ricardian comparative advantage using cross country data on trade policy unemployment and various controls and controlling for endogeneity and measurement error problems we find fairly strong and robust evidence for the ricardian prediction that unemployment and trade openness are negatively related this effect dominates the positive h o effect of trade openness on unemployment for capital abundant countries which turns negative for labor abundant countries using panel data we find an unemployment increasing short run impact of trade liberalization followed by an unemployment reducing effect leading to the new steady state

volatility in an era of reduced uncertainty lessons from pax britannica abstract although it has been well established that financial volatility is related to news and macroeconomic shocks less emphasis has been placed on the importance of underlying economic and political stability in this paper we study the behavior of consol returns since 1729 and identify a greater than 50 decline in volatility from the end of the napoleonic wars in 1815 until the first world war news events and macroeconomic variables cannot account for this extended period of reduced volatility underlying political stability under pax britannica seems to be a more likely explanation

environmental goods and the distribution of income the paper presents a theoretical investigation of the distributional impacts of environmental commodities it introduces an appropriate framework defines concepts for measuring benefits and examines the determinants of benefit incidence within this setup its emphasis is on methodology and on recognizing the relevant economic variables and information it turns out that in an equal preference model the magnitude of the income elasticity of marginal willingness to pay for an environmental good is the crucial variable determining progressivity it is related to a number of other elasticities which are more easily accessible to an empirical estimation

spike models in contingent valuation spike models allow for a nonzero probability of zero willingness to pay in referendum style contingent valuation experiments they include many of the often used models as special cases and allow various analyses that are not possible in standard applications in this paper the economic rationale for the spike models and their estimation techniques are discussed and empirical illustrations are provided one study suggests that mean willingness to pay is zero and both studies strongly suggest that median wtp is zero these results have some bearing on the continuing debate of the incentive properties of hypothetical surveys and the construction of scenarios in contingent valuation experiments

household willingness to pay equals individual willingness to pay if and only if the household income pools abstract i show household and individual willingness to pay are equal if and only if household choices satisfy income pooling providing a test of whether the individual respondent speaks for the household an assumption implicit in much stated preference practice

the gendered labor market impacts of trade liberalization evidence from brazil this paper investigates gender differences in the impact of brazil s trade liberalization on labor market outcomes to identify the causal effect of trade reforms the paper uses difference in difference estimation exploiting variation across microregions in pre liberalization industry composition the analysis finds that trade liberalization reduced male and female labor force participation and employment rates but the effects on men were significantly larger thereby tariff reductions contributed to gender convergence in labor force participation and employment rates gender differences are concentrated among the low skilled population and in the tradable sector where male and female workers are most likely to be imperfect substitutes

effects of pro growth policies on employment evidence of regional disparities the main objective of our research is to study the direct impact of pro growth economic policies on employment creation globally and regionally as evidence has countered policy makers expectation

elasticities of demand and willingness to pay for environmental services in sweden are environmental services luxuriesor necessities are low income groupsrelatively more willing to pay forenvironmental improvements than high incomegroups the discussion on the shape of theenvironmental kuznets curve and environmentaljustice call for analyses that approach thesequestions following a survey based approachfor modelling the demand for public goods thispaper provides estimates of income and priceelasticities of demand for reduced marineeutrophication effects in the case of thebaltic sea using data from five swedishcontingent valuation studies point estimatesindicate that reduced marine eutrophicationeffects can be classified as a necessity and anordinary and price elastic service confidenceintervals show however that the classificationas a necessity is not statisticallysignificant income elasticities of willingnessto pay not to be confused with incomeelasticities of demand are estimated for abroad range of environmental services insweden a basic finding is that income tends toinfluence willingness to pay positively andsignificantly the elasticity estimates are inmost cases greater than zero but less thanunity indicating that the benefits ofenvironmental improvements tend to beregressively distributed in a cost benefitanalysis of a project suggesting environmentalimprovements distributional concerns thereforecall for an introduction of weights or at leasta sensitivity analysis of how weighting wouldchange decisions about the project s socialprofitability

income inequality and willingness to pay for environmental public goods we study how the distribution of income among members of society and income inequality in particular affects social willingness to pay wtp for environmental public goods we find that social wtp for environmental goods decreases increases with income inequality if and only if environmental goods and manufactured goods are substitutes complements we derive adjustment factors for benefit transfer to control for differences in income distributions between a study site and a policy site for illustration we quantify how social wtp for environmental public goods depends on the respective income distributions for empirical case studies in sweden and the world at large we find that the adjustment for income inequality can be substantial

a north south model of trade with search unemployment abstract in this paper i build a north south model of international trade economic growth and search frictional unemployment in the north growth is driven by a process of creative destruction in the north followed by imitation in the south i study the effects of intellectual property rights protection and trade liberalization on unemployment and welfare in the north intellectual property rights protection decreases unemployment and increases welfare trade liberalization increases welfare but has an ambiguous effect on unemployment it decreases unemployment if workers in the north have a high outside option and increases it if their outside option is low i provide empirical evidence in support of the last result using data for 20 oecd countries

structural reforms and labor market outcomes international panel data evidence this paper explores the impact of structural reforms on a comprehensive set of macro level labor market outcomes including the unemployment rate the average wage index and overall and female employment levels and labor force participation rates together these outcome variables capture the overall health of the labor market and the aggregate welfare of workers yet there seems to be no other comprehensive empirical investigation in the existing literature of the impact of structural reforms at the cross country macro level on labor market outcomes other than the unemployment rate data were collected from a variety of sources including the world bank world development indicators the international monetary fund international financial statistics and the international labor organization key indicators of the labor market the resulting dataset covers up to 88 countries the majority being developing for 10 years on either side of structural reforms that took place between 1960 and 2001 after documenting the average trends across countries in the labor market outcomes up to 10 years on either side of each country s structural reform year the authors run fixed effects ordinary least squares as well as instrumental variables regressions to account for the likely endogeneity of structural reforms to labor market outcomes overall the results suggest that structural reforms lead to positive outcomes for labor unlike related literature the paper does not find conclusive evidence on unemployment redistributive effects in favor of workers along the lines of the stolper samuelson effect may be at work

public good valuation and intra family allocation i derive values of marginal changes in a public good for two person households measured alternatively by household member i s willingness to pay wtp for the good on behalf of the household wtp i h or by the sum of individual wtp values across family members wtp c households are assumed to allocate their resources in efficient nash bargains over private and common household goods wtp i h is then defined by trade offs between the public good and the household good and wtp c by trade offs of between the public good and private goods wtp i h is found to be higher lower than wtp c when member i has a relatively high low marginal valuation of the public good but tends on average to equal wtp c as a consequence individuals tend to represent households correctly on average when questioned about the household s wtp for a public good even when they are purely selfish and answer truthfully adding all members wtp answers on behalf of the household then leads to double counting pure and paternalistic altruism the latter attached to consumption of the public good move each member s wtp on behalf of the household closer to the true sum of individual wtp but only paternalistic altruism raises this sum

the relationship between the income elasticities of demand and willingness to pay abstract the relationship between income and willingness to pay for collectively provided public environmental goods is investigated we show that while the income elasticity of willingness to pay and the ordinary income elasticity of demand are related knowledge of one is insufficient to determine the magnitude or even the sign of the other the income elasticity of willingness to pay is influenced by additional factors which are generally unobservable examples are provided to illustrate the degree to which the two income elasticities may diverge our results indicate that even when goods are demand luxuries they may or may not have income elasticities of willingness to pay which are greater than one

trade wages and the political economy of trade protection evidence from the colombian trade reforms abstract worker industry affiliation plays a crucial role in how trade policy affects wages in many trade models yet most research has focused on how trade policy affects wages by altering the economy wide returns to a specific worker characteristic i e skill or education rather than through worker industry affiliation this paper exploits drastic trade liberalizations in colombia in the 1980s and 1990s to investigate the relationship between protection and industry wage premiums we relate wage premiums to trade policy in an empirical framework that accounts for the political economy of trade protection accounting for time invariant political economy factors is critical when we do not control for unobserved time invariant industry characteristics we find that workers in protected sectors earn less than workers with similar observable characteristics in unprotected sectors allowing for industry fixed effects reverses the result trade protection increases relative wages this positive relationship persists when we instrument for tariff changes our results are in line with short and medium run models of trade where labor is immobile across sectors or alternatively with the existence of industry rents that are reduced by trade liberalization in the context of the current debate on the rising income inequality in developing countries our findings point to a source of disparity beyond the well documented rise in the economy wide skill premium because tariff reductions were proportionately larger in sectors employing a high fraction of less skilled workers the decrease in the wage premiums in these sectors affected such workers disproportionately

margins of labor market adjustment to trade abstract we use both longitudinal administrative data and cross sectional household survey data to study the margins of labor market adjustment following brazil s early 1990s trade liberalization we document how workers and regional labor markets adjust to trade induced changes in local labor demand examining various adjustment margins including earnings and wage changes interregional migration shifts between tradable and nontradable employment and shifts between formal employment informal employment and non employment our results provide insight into the regional labor market effects of trade and have important implications for policies that address informal employment and that assist trade displaced workers