environmental protection policies and the structure of the us economy the policy of regulation has been used to abate pollution in the usa however a number of other measures such as a tax cum subsidy program and taxes on polluters have been frequently suggested in the literature in this paper the impact of these policies on the structure of pices production income distribution and the input requirements of labour and capital is determined the input output methodology is used for this purpose the direct and primary input requirement coefficients of the 1971 input output table are adjusted to reflect the input requirements of pollution abatement technology the policy of regulation is found to be more effective in controlling pollution than the tax cum subsidy program though the latter will create more jobs the reason for this is that the tax cum subsidy program is not as successful as the policy of controls or taxes on polluters in steering consumption away from the polluting industries

pollution control and inputs to production abstract the primary concern of this paper is to identify the inputs required for air water and solid waste pollution abatement in the united states industry level data on pollution abatement expenditures in 1976 are decomposed into expenditures on various intermediate inputs and on two primary inputs labor and capital the 1971 input output table is adjusted to reflect the input needs of pollution abatement technology this revised direct input coefficients matrix is used to derive the gross output and primary input requirements of the 1971 final bill of goods

counterfactual decomposition of changes in wage distributions using quantile regression we propose a method to decompose the changes in the wage distribution over a period of time in several factors contributing to those changes the method is based on the estimation of marginal wage distributions consistent with a conditional distribution estimated by quantile regression as well as with any hypothesized distribution for the covariates comparing the marginal distributions implied by different distributions for the covariates one is then able to perform counterfactual exercises the proposed methodology enables the identification of the sources of the increased wage inequality observed in most countries specifically it decomposes the changes in the wage distribution over a period of time into several factors contributing to those changes namely by discriminating between changes in the characteristics of the working population and changes in the returns to these characteristics we apply this methodology to portuguese data for the period 1986 1995 and find that the observed increase in educational levels contributed decisively towards greater wage inequality copyright 2005 john wiley sons ltd

decomposing the composition effect the role of covariates in determining between group differences in economic outcomes in this article we study the structure of the composition effect which is the part of the observed between group difference in the distribution of some economic outcome that can be explained by differences in the distribution of covariates using results from copula theory we derive a new representation that contains three types of components i the direct contribution of each covariate due to between group differences in the respective marginal distributions ii several two way and higher order interaction effects due to the interplay between two or more marginal distributions and iii a dependence effect accounting for between group differences in dependence patterns among the covariates we show how these components can be estimated in practice and use our method to study the evolution of the wage distribution in the united states between 1985 and 2005 we obtain some new and interesting empirical findings for example our estimates suggest that the dependence effect alone can explai

where do property rights matter more explaining the variation in demand for property titles across cities in mexico this paper examines the variation in the value of property rights to housing in mexico focusing specifically on differences between urban housing markets roughly 30 of owner occupied houses in mexico do not have a proper deed houses with no deed are estimated to be five percent less valuable than otherwise similar houses with a full deed yet this premium varies widely across cities i match data from the 2012 and 2014 national survey of household incomes and expenditures to different sources of city level data in order to examine hypotheses explaining this variation in a multilevel regression framework i find that deeds are valued more in cities with more highly educated residents more political competition and more voting measures of local economic activity degree of informality and the regulatory bureaucracy are not associated with higher value to full property rights additionally i find that more educated households value deeds more and having a deed is more valuable for larger houses in neighborhoods with less vacancy and higher infrastructure quality based on these results i suggest funds to subsidize titling should be redirected to places where titles are worth more more broadly i suggest policymakers reconsider framing property titling programs as poverty alleviation low income households would benefit more from subsidies for improvements to housing and residential infrastructure at the same time the federal government should further push to reduce the costs of transferring property

squatting as rent seeking and pressure group competition a south african case study a new squatting phenomenon in south africa is analysed from a rent seeking pressure group perspective while such squatting may play an expanded role in privatising publicly and even privately held land and in redistributing wealth over the near future in the longer term its expansion will tend to be limited by rent protecting and counter innovation as long as this rent seeking competition stays within the bounds set by constitutional government

urban land and housing markets in the punjab pakistan well functioning urban land and housing markets are critical success factors for achieving robust economic growth this paper provides an overview of urban land and housing market performance in punjab province of pakistan it describes the characteristics of well functioning markets and argues that the punjab s present markets are not performing adequately in fact there exists a range of impediments to efficient urban land and housing market performance excessive public land ownership inadequate infrastructure services weak property rights pervasive public and private sector rent seeking counter productive urban planning policies and regulations costly sub division and construction regulations limited financing for property development and acquisition rent controls and inadequate property tax based revenue generating mechanisms the paper concludes by suggesting that a prioritised comprehensive reform agenda is needed to improve urban land and housing market performance in punjab province the

the polarization of the u s labor market this paper analyzes a marked change in the evolution of the u s wage structure over the past fifteen years divergent trends in upper tail 90 50 and lower tail 50 10 wage inequality we document that wage inequality in the top half of distribution has displayed an unchecked and rather smooth secular rise for the last 25 years since 1980 wage inequality in the bottom half of the distribution also grew rapidly from 1979 to 1987 but it has ceased growing and for some measures actually narrowed since the late 1980s furthermore we find that occupational employment growth shifted from monotonically increasing in wages education in the 1980s to a pattern of more rapid growth in jobs at the top and bottom relative to the middles of the wage education distribution in the 1990s we characterize these patterns as the u201cpolarization u201d of the u s labor market with employment polarizing into high wage and low wage jobs at the expense of middle wage work we show how a model of computerization in which computers most strongly complement the non routine abstract cognitive tasks of high wage jobs directly substitute for the routine tasks found in many traditional middle wage jobs and may have little direct impact on non routine manual tasks in relatively low wage jobs can help explain the observed polarization of the u s labor market this abstract was borrowed from another version of this item

squatters rights and urban development an economic perspective up to 35 per cent of urban dwellers in third world cities are squatters the characteristics of the squatting phenomenon are both varied and puzzling of particular interest are the observations that 1 landowners often do not collect rent from squatters for use of the land and 2 costly evictions are sometimes used without subsequent development of the land which in many cases is resettled by squatters we present an economic model of landowner squatter interaction which is consistent with these observations this model is then used to enlighten certain aspects of socially optimal land management policy for squatter areas the phenomenon of squatting in third world cities is widespread and growing recent studies have shown that up to 35 per cent of the total urban population of developing countries lives in squatter settlements the current and mostly non economic literature has mixed views regarding whether squatting is a problem or a solution to efficient urbanization attitudes concerning squatter settlements range from disgust concerning living conditions in such illegal or quasi illegal spontaneous settlements to admiration for the resourcefulness of the inhabitants as they provide themselves with at least some shelter using the minimal inputs available the literature has consequently not provided a useful conceptual framework to guide government policy in this paper we develop a formal economic model to understand the various forms of squatting in third world cities we then use the model to address some vexing policy questions do private landowners evict squatters too frequently or too infrequently should any or all squatters be evicted should they be provided with basic infrastructure services should they be given unambiguous property rights to the land they occupy applying the coase theorem to the squatting problem we might conclude that the observed rate of evictions was just right evictions occur only if the value of land use to squatters is less than the sum of the alternative development value to the landowner plus the cost of evictions this economic logic follows since squatters would outbid any competing use of the land if indeed they valued it more thus any policy that gave more property rights to squatters would be a pure transfer from landowners to squatters social welfare would be unaffected however transaction and bargaining costs associated with the transfer of ownership of land to squatters which are likely to be important in the squatting problem can invalidate this simple intuition 2 landowners incur costs when they try to enforce property rights either by collecting rent or evicting collect ing rent formalizes the relationship between renter and landowner the land owner would then have to incur the costs of providing basic services water

the effect of implicit contracts on the movement of wages over the business cycle evidence from micro data in this paper we address the question of whether wages are affected by labor market conditions in a manner more consistent with a contract approach than with a standard spot market model from a simple implicit contract model we derive implications about the links between wages and past labor market conditions using individual data from the current population survey and the panel study of income dynamics we find that an implicit contract model with costless mobility describes these links better than either a simple spot market model or an implicit contract model with costly mobility

review of de soto s the mystery of capital in the mystery of capital hernando de soto promotes his explanation of why formal capital markets function poorly in developing countries de soto argues that much of the population of developing countries lacks access to credit not because they lack assets but because ownership of their property is secured informally which prevents the use of property as collateral the inability to convert assets into capital keeps the developing world from benefiting from capitalism

untitled a study of formal and informal property rights in urban ecuador we explore the substitutability of formal and informal property rights using new survey data from ecuador where households have both formal and informal claims to urban residential property we develop a model of property transactions that distinguishes between transferable and non transferable claims and show how this distinction affects the interpretation of hedonic price regressions the unconditional effect of title is to raise properties value by 23 5 however we also find that informal property rights can substitute effectively for formal property rights and suggest that titling programmes should be targeted at young disorganised communities if they are to benefit the recipients

on the determinants of slum formation we construct a simple model of a city with heterogeneous agents and housing choice to explain the determinants of slums home to about one third of the urban population in developing countries the model supports the main empirical evidence regarding slum formation and is able quantitatively to assess the role of each determinant of slum growth we show that urban poverty inequality and rural urban migration explain much of the variation in slum growth in brazil from 1980 to 2000 ex ante evaluation of the impacts of policy interventions shows that removing barriers to formalisation has a strong impact on slum reduction

assessing the nonlinearity of the calorie income relationship an estimation strategy with new insights on nutritional transition in vietnam abstract assessing the nonlinearity of the calorie income relationship is a crucial issue when evaluating policies aimed at fighting against malnutrition a natural choice would be to adopt a fully nonparametric specification of the relationship in order to let the data reveal its nonlinearity but we would be faced with the problem of the curse of dimensionality due to the presence of many control variables in addition to income here we first propose to estimate generalized additive models where only income is supposed to enter nonlinearly in the specification second we use a recent cross validation procedure in order to choose among various competing specifications including the parametric double log specification widely used in the literature in addition to gam specifications this methodology is implemented for each of the six waves of the vietnam household living standard survey from 2004 to 2014 the calorie income relationship is nonlinear whatever the wave a strong response of calorie intake to an increase in income for poorest households is highlighted showing that there is still room for income based policies to fight against malnutrition a byproduct of this methodology is the decomposition of the evolution of average calorie intake between the two waves in the part due to population change and that coming from the change in calorie income relationship shedding new light on the nutritional transition in vietnam

input output simulations of energy environment economy interactions in the uk this paper shows how a number of the complex interrelationships between energy environment and economic welfare can be investigated with the aid of a 10 sector input output i o model of the uk with pollution emission coefficients and a european sulphur deposition vector the paper reviews relevant past applications of i o analysis in the energy environment area and describes the endam program and its operation it is used to simulate the effects of a variety of policies and possibilities not only through changes in exogenous variables final demand and income taxes and transfers but also through changes in the structural matrices and their coefficients in each case the full effects direct indirect and income induced can be traced and the changes in comparative static equilibrium values discovered in this way policy issues connected with energy use and environmental impacts employment and economic welfare have been investigated

changes in the characteristics of american youth implications for adult outcomes we examine changes in the characteristics of american youth between the late 1970s and the late 1990s with a focus on characteristics that matter for labor market success the current generation is more skilled than the previous one blacks and hispanics have gained relative to whites and women have gained relative to men however the skill distribution has widened overall shifts in parental education generate many of the observed changes we also provide speculative estimates suggesting that if recent trends in technology and the supply of human capital continue wage inequality will increase substantially by 2025

the demand for tenure security in developing countries abstract we use survey data for manila the philippines to estimate hedonic functions for formal and squatter housing values we show that on average a rented squatter unit in manila would rent for 15 percent more if it were a formal sector unit an owned squatter unit would sell for 25 percent more if it were a formal sector unit these percentages are interpreted as eviction risk discount for squatter dwellings we conclude that assistance projects that provide secure tenure over a wide area will bestow comparatively greater benefits on lower income households and to those in newer less established settlements since the risks that they bear initially are greater

thanks but no thanks a new policy to reduce land conflict abstract land conflicts in developing countries are costly both directly and through increased land degradation an important policy goal is to create respect for borders this often involves mandatory expensive interventions we propose a new policy design which in theory promotes neighborly relations at low cost a salient feature is the option to by pass regulation through consensus the key idea combines the insight that social preferences transform social dilemmas into coordination problems with the logic of forward induction as a first low cost pass at empirical evaluation we conduct an experiment among farmers in the ethiopian highlands a region exhibiting features typical of countries where borders are often disputed

the changing distribution of male wages in the uk this paper uses microeconomic data from the u k family expenditure surveys fes and the general household surveys ghs to describe and explain changes in the distribution of male wages since the late 1970s wage inequality has risen very fast in the u k and this rise is characterized both by increasing education and age differentials we show that a large part of the changes in the u k can be summarized quite simply as increases in eduction differentials and a decline of growth of entry level wages which persist subsequently this fact we interpret as cohort effects we also show that like in the u s an important aspect of rising wage inequality is increased within group wage dispersion finally we use the ghs to evaluate the role of alternative education measures

intergenerational mobility in britain in this paper we use longitudinal data on children and their parents to assess the extent of intergenerational mobility in britain based on data from the national child development survey a cohort of all individuals born in a week of march 1958 we find that the extent of intergenerational mobility is limited we report an intergenerational correlation of the order 40 to 60 for fathers and sons and 45 to 70 for fathers and daughters in terms of labour market earnings and years of schooling an examination of quartile transition matrices between parental and child earnings outcomes reveals a similar pattern finally it seems on the basis of these transition matrices that there is an important asymmetry in intergenerational earnings mobility with upward mobility from the bottom of the earnings distribution being more likely than downward mobility from the top

land tenure security and investment incentives puzzling evidence from burkina faso abstract the commonsense logic associating higher land security and higher incentives to invest has been recently called into question in the case of african agriculture to be meaningful empirical tests have to be carefully designed so as to take account of the possible endogeneity of the land rights variable this is done in this paper by applying suitable econometric methods to the original data collected in burkina faso the results obtained cast doubt on the existence of a systematic influence of land tenure security on investment by reviewing the justifications for scepticism in the recent literature we are able to conclude that the traditional village order where it exists provides the basic land rights required to stimulate small scale investment

nonlinear budget constraints and consumer demand an application to public programs for residential housing abstract this study presents a methodology for exploiting the nonlinear hedonic nature of housing prices to estimate the compensated demands of households for particular housing attributes the methodology is employed to provide hicksian benefit measures of a particular housing subsidy program typical of those undertaken recently in developing countries

economics of multihabitation housing conditions household occupancy and household structure under rent control inflation and nonmarketability of ownership rights abstract multihabitation in terms of sharing facilities in a dwelling or extended family occupancy is common in parts of the third world this paper uses the ghanaian housing market to assess the impact of multihabitation on house condition and on household occupancy rates per room as distinct from the influence of other factors on these variables multivariate statistical techniques form the method of analysis and the models have a high predictive accuracy the impacts of current government policies such as rent control on house condition and occupancy rates is also discussed along with cultural attitudes to ownership and obligations to the extended family

decomposing economic mobility transition matrices the intergenerational mobility literature has consistently found that the distribution of adult economic outcomes differ markedly depending on parental economic status yet much remains to be understood about the drivers or determinants of this relationship existing literature on potential drivers focuses primarily on mean effects to help provide a more complete picture of the potential forces driving economic persistence we propose a method to decompose transition matrices and related indices specifically we decompose differences between an estimated transition matrix and a benchmark transition matrix into portions attributable to differences in characteristics between individuals from different households a composition effect and portions attributable to differing returns to these characteristics between individuals from different households a structure effect we also incorporate a detailed decomposition based on copula theory that decomposes the composition effect into portions attributable to specific covariates and their interactions we illustrate our method using data on white men from the 1979 national longitudinal survey of youth estimation is based on an extended mincer equation that includes cognitive and non cognitive measures to address the potential endogeneity of education we implement an iv strategy that allows us to estimate causal effects and investigate the role of unobserved ability

differences in wage distributions between canada and the united states an application of a flexible estimator of distribution functions in the presence of covariates we construct a tractable flexible functional form estimator of cumulative distribution functions for non negative random variables which admits large numbers of covariates the estimator adopts and extends techniques from the spell duration literature for estimating hazard functions to distribution functions for wages earnings and income we apply these methods to investigate sources of wage inequality for full time male workers between canada and the united states finding that the canadian wage density has a thinner left tail because low educated workers have higher pay and a thinner right tail because of a lower proportion of highly educated workers unions appear to play a large role in these outcomes

tenure security and urban squatting while recent studies have shown that up to 35 of the total urban population of the third world live in squatter settlements there is a dearth of economic analysis on the phenomenon of squatting this paper attempts to fill this gap the equilibrium model argues that the difference in unit housing prices between the non squatting formal sector of a city and its squatting informal sector reflects the premium associated with a secure tenure status the empirical portion of this paper uses hedonic price techniques to derive the average premium on tenure security in a medium sized philippine city davao results show that formal sector unit dwelling prices are about 18 renters to 58 owners more than in the informal sector these equilibrium price differentials were found to be greater for lower income groups larger household sizes and households with older heads for renters and younger heads for