the household response to persistent natural disasters evidence from bangladesh we examine the short run economic impacts of recurrent flooding on bangladeshi households surveyed in 2000 2005 and 2010 in 2010 household income and expenditure survey hies households answered a set of questions on whether they were affected by flood and its likely impacts we identify two treatment affected groups by using the self reported data and historical rainfall data based flood risk index we estimate a difference indifference did model to quantify the impacts on income expenditure asset and labour market outcomes and further extend our analysis to different income and expenditure brackets overall we find robust evidence of negative impacts on agricultural income and expenditure intriguingly the extreme poor i e the bottom 15th quintile experience significant positive impacts on agricultural income in the self reported treatment case

weighing what s practical proxy means tests for targeting food subsidies in egypt abstract despite achieving a significant cost reduction over the past two decades the absolute cost of food subsidies in egypt is still high relative to the benefits received by the poor there is scope for better targeting these food subsidies in particular for targeting cooking oil and sugar ration cards both because reforms in this area are perceived to be far less politically sensitive than adjusting subsidy policy for bread and wheat flour and because higher income groups presently receive a significant percentage of the benefits targeting the high subsidy green ration cards to the poor and the low subsidy red ration cards to the nonpoor will require identification of both poor and nonpoor households an international food policy research institute research team in egypt in collaboration with the egyptian ministry of trade and supply developed a proxy means test for targeting ration cards the paper describes the process of moving from the optimal income predicting model to the final model that was both administratively and politically feasible an ex ante evaluation of the levels of accuracy of the proxy means testing model indicates that the model performs quite well in predicting the needy and nonneedy households an effective and full implementation of this targeting method would increase the equity in the ration card food subsidy system and at the same time the total budgetary costs of rationed food subsidies would decline moreover the experience gained under this reform would facilitate targeting future social interventions to reduce and prevent poverty in egypt

an analysis of childhood malnutrition in rural india role of gender income and other household characteristics there are controversies regarding the role of individual and household characteristics in childhood nutritional status measured by anthropometric indicators using a nutrition index based on weight for age of children in rural india the paper re examines this issue ordered probit estimates of nutritional status suggest female literacy improves the nutritional status of boys at the cost of girls while higher per capita current income improves that of both boys and girls though the impact is higher for boys however effect of income is not robust when we use instruments of longer run income but more income and literacy give more ways to discriminate between boys and girls

are some groups more vulnerable to macroeconomic shocks than others hypothesis tests based on panel data from peru abstract which socio economic groups are most vulnerable to welfare declines during a macroeconomic shock after clarifying the difference between poverty and vulnerability this paper presents an analytical framework and applies it to panel data from peru major findings are 1 households with better educated heads are less vulnerable 2 female headed households are no more vulnerable than male headed households 3 households with more children are more vulnerable 4 transfer networks that assist the poor in relatively stable periods do not protect them during a major shock unless they originate from outside peru and 5 peru s social security program is targeted neither to vulnerable nor to poor households but other transfer programs are better targeted

on measuring child costs with applications to poor countries the theoretical basis for measuring child costs is discussed and detailed consideration is given to two straightforward procedures for calculation engel s food share method and rothbarth s adult good method each of these methods embodies different definitions of child costs so that the same empirical evidence can generate quite different estimates depending on the method used it is shown that true costs are generally overstated by engel s method and understated by rothbarth s procedure although the latter unlike the former can provide a sensible starting point for cost measurement our estimates from sri lankan and indonesian data suggest that children cost their parents about 30 40 percent of what they spend on themselves

poverty food security nexus evidence from a survey of urban slum dwellers in kolkata we explore the poverty food security nexus using an experience based indicator of food security constructed using a cross section sample of slum households in kolkata within the framework of a simultaneous ordered probit model we find a poor household is also likely to be food insecure additionally education gender and household composition are major drivers of food insecurity among low income urban households with the policy implication that anti poverty policies should be successful in eliminating household food insecurity however they need to be complemented with human capital investment and gender empowerment to be most effective

weakly relative poverty prevailing measures of relative poverty are unchanged when all incomes grow or contract by the same proportion this property stems from seemingly implausible assumptions about the disutility of relative deprivation and the cost of social inclusion the authors propose weakly relative lines that relax these assumptions on calibrating our measures to national poverty lines and survey data we find that half the population of the developing world in 2005 lived in poverty only half of whom were absolutely poor the total number of poor rose over 1981 to 2005 despite falling numbers of absolutely poor with sustained economic growth the incidence of relative poverty became less responsive to further growth the number of relatively poor rose just as the numbers of absolutely poor fell

measuring chronic poverty without a panel abstract a new method of decomposing cross sectional poverty estimates into chronic and transient components is demonstrated using data from a recent household survey in papua new guinea this method is simpler than previously used panel methods because it does not require data on every household in every period the only requirement is that a subset of the surveyed households have a repeat observation made on their welfare indicator some time after the initial observation in the setting considered the chronic and transient components of headcount poverty are roughly equal while three quarters of the mean poverty gap is transient in the sense of being due to within year fluctuations in expenditures

poverty and household size the widely held view that larger families tend to be poorer in developing countries has influenced research and policy the scope for size economies in consumption cautions against this view we find that the correlation between poverty and size vanishes in pakistan when the size elasticity of the cost of living is about 0 6 this turns out to be the elasticity implied by a modified version of the food share method of setting scales by contrast some measures of child nutritional status indicate an elasticity of unity consideration of the weight attached to child versus adult welfare may help resolve the non robustness of demographic profiles of poverty excerpt

comparing the profitability of organic and conventional production in family farming empirical evidence from brazil abstract several studies have compared the profitability of organic and conventional producers but present very conflicting results although in the majority of these papers selection bias due to observables is accounted for the possibility of selection based on unobservables has been largely overlooked in this paper we compare these two types of producers using a large and unique data of about 4 2 million family farmers in brazil standard propensity score matching techniques are used together with the procedure recently developed by oster forthcoming to address concerns about omitted variables our results confirm the working hypothesis that organic producer s profits are lower than conventional ones

the dual political economy of taxes and tradable permits abstract the widely accepted difference in the political economy of taxes and tradable permits results from overly simple models a more general model shows that the distributional impacts driving the political economy of grandfathered permits can be similar for both policies

price relationships between qualitatively differentiated agricultural products organic and conventional wheat in germany organic agriculture which produces commodities that can be qualitatively differentiated from conventional food products has grown into an important market in many countries the dynamics of commodity prices in both sectors are partly interdependent but are also shaped by independent determinants and have rarely been studied we analyze organic food markets and their interdependencies with conventional markets in the context of wheat markets in germany which have been subject to a number of fundamental changes during the last two decades based on institutional market characteristics we suggest a flexible markov switching asymmetric time series model we find a pronounced temporal sequence of market phases that differ in their asymmetric dynamics and the extent to which the organic price is influenced by the conventional price organic wheat prices tend to be increasingly connected to prices of conventional wheat

equivalence scale relativities and the extent of inequality and poverty most inequality and poverty theory analyzes equivalent income distributions for homogeneous populations incomes are assumed to be deflated by an equivalence scale that accounts for differences in needs between households yet in practice there is no consensus about what the appropriate equivalence scale is the authors analyze how the choice of equivalence scale affects inequality and poverty measures and show that there is a systematic relationship between equivalence scale generosity and the extent of inequality and poverty they consider most of the measures in common use and provide some empirical illustrations copyright 1992 by royal economic society

permit price dynamics in the u s so2 trading program a cointegration approach the aim of this paper is to study empirically the determination and the dynamic behavior of the so2 permit prices previous research focused on ex post market price analysis without taking weather conditions into account therefore this study attempts to fill a gap in the literature by providing new empirical evidence on the so2 price evolution and its interactions with macroeconomic variables microeconomic variables and climate variables using monthly data from january 1995 to december 2006 our estimation results indicate the existence of a long term relationship between so2 permit price scrubbing costs industrial production and weather conditions in the short run so2 permit price is affected by scrubbing costs energy prices and weather conditions policy makers and private investors could benefit from the findings of this study that provides useful information on the characteristics of the so2 market and may plan their strategy

non linearities and equivalence scales this paper focuses on the estimation and testing of equivalence scales in the context of a demand system with nonline ar logarithmic expenditure effects in its budget share equations the authors show that such nonlinearity enables one to identify the scal es without demographic separability restrictions on preferences and to avoid false rejection of the hypothesis that the scales are independ ent of the base utility level the empirical analysis is based on micro data drawn from the u k family expenditure survey copyright 1993 by royal economic society

on testing the scale sensitivity of poverty measures past tests of the sensitivity of aggregate poverty measures to changes in equivalence scales can be very sensitive to the arbitrary choice of the pivotal reference demographics it is recommended that future tests should use demographics typical of people living near the poverty line as their reference

gender poverty and deprivation evidence from the republic of guinea the article examines the relationship between gender and consumption poverty and between gender and deprivation in the republic of guinea national household survey data reveal that women are not more likely than men to be consumption poor or to suffer greater consumption poverty participatory poverty assessment data from the village of kamatiguia reveal that women are worse off than men when deprivation includes inter alia excessive work load and reduced decision making authority when consumption poverty poorly correlates with other dimensions of deprivation it should not be the sole guide for equity based policy intervention

is the implementation of energy saving and emission reduction policy really effective in chinese cities a policy evaluation perspective abstract reducing pollutant emissions while ensuring a stable economic growth is an important embodiment of sustainable development based on the national comprehensive demonstration of energy saving and emission reduction fiscal policy eser policy proposed by the chinese government in 2011 this paper analyzes the impact of such policy on emissions reduction and economic growth under the framework of differences in differences did method this paper first identifies the implementation conditions of eser policy then we adopt three specifications to control the endogenous problem for the selection of demonstration cities the robustness test verifies the reliability of our findings and the spillover effect analysis reveals the deficiency of this policy we reach the following conclusions 1 different from the previous studies we find that the eser policy can effectively reduce the pollutant emissions while ensuring a stable economic growth 2 however the event study reveals that the reduction effect is only existing in the demonstration period which means that this policy is not sustainable 3 furthermore we find no spillover effect of eser policy on the non policy targeted pollutant suggesting that the local government only cares about the reduction of policy targeted pollutants based on these findings we propose that the future energy saving and emissions reduction policy formulation should focus on the policy sustainability and overall environmental performance

estimating utility consistent poverty lines with applications to egypt and mozambique abstract a fundamental premise of absolute poverty lines is that they represent the same level of utility through time and space disturbingly a series of recent studies in middle and low income economies show that even carefully derived poverty lines rarely satisfy this premise this article proposes an information theoretic approach to estimating cost of basic needs cbn poverty lines that are utility consistent applications to date illustrate that utility consistent poverty measurements derived from the proposed approach and those derived from current cbn best practices often differ substantially with the current approach tending to systematically overestimate underestimate poverty in urban rural zones

the developing world is poorer than we thought but no less successful in the fight against poverty a new data set on national poverty lines is combined with new price data and almost 700 household surveys to estimate absolute poverty measures for the developing world we find that 25 of the population lived in poverty in 2005 as judged by what poverty typically means in the world s poorest countries this is higher than past estimates substantial overall progress is still indicated the corresponding poverty rate was 52 in 1981 but progress was very uneven across regions the trends over time and regional profile are robust to various changes in methodology though precise counts are more sensitive

decomposition of productivity growth using distance functions the case of dairy farms in three european countries within an output distance function framework the total factor productivity growth index is decomposed into four components technical change technical and allocative efficiency and scale component we estimate stochastic translog output distance functions using panel data from dairy farms over the period 1991 94 for three european countries germany the netherlands and poland results indicate that the change in the productivity growth index in germany 6 and poland 5 are mainly dictated by the technical change component in contrast the productivity growth index in the netherlands 3 is influenced by allocative efficiency components

organic or conventional optimal dairy farming technology under the eu milk quota system and organic subsidies this paper assesses the competitiveness of organic and conventional dairy farms under different milk market and organic farming policy scenarios we use a dea based model to estimate for each policy scenario the sample farms profit potential in both technologies the model enables identification of a farm s optimal technology based on its input output observations the empirical analysis is based on the annual accounts of 1300 bavarian dairy farms results indicate that approximately 69 78 of the organic conventional farms have chosen their optimal farming system the remaining organic conventional farmers could increase their profit on average by roughly 6 10 by switching to the other technology abolishment of the eu milk quota results in a considerable decline in the number of sample farms for which organic farming is the optimal technology suggesting that ceteris paribus organic dairy farms may lose competitive advantage with the deregulation of the eu s milk market regime in 2015 organic maintenance payments more than double the number of farms with a higher earning potential in organic farming but their effectiveness could decline when the milk quota is abolished c 2010 elsevier ltd all rights reserved

a method for analyzing pollution control policies application to so2 emissions in china abstract market based pollution control mechanisms such as pollution levy and cap and trade have received increasing attention from both academics and practitioners a good understanding of the optimal pollution price under these mechanisms is a premise for regulators to make sound pollution control policies in this paper we propose a method for deriving the optimal pollution price for a given pollution target this method consists of two steps that integrate cost function estimation and market equilibrium analysis first historical data is used to estimate the pollution abatement cost functions of the polluters second market models are used to solve the equilibrium pollution price under each control mechanism for illustration we apply the method to investigate so 2 emission control policies in china using a dataset of so 2 emissions and abatement costs from three major industry sectors electricity gas and water supply manufacturing and mining our analysis shows that the optimal levy rate is significantly higher than the actual rate adopted by the chinese government for example the optimal levy rate should be 4 92 rmb kg while the actual rate is 1 26 rmb kg in 2010 as a result the actual emission structure is much less efficient the overall cost savings would be 49 7 for all three sectors during 2006 2010 if the optimal emission structure is achieved these findings have useful policy implications for the chinese government in addition the method may be applied to analyze control policies at different aggregate levels for example provincial economies or for other pollutants for example co 2 and chemical oxygen demand

chronic and transitory poverty evidence from egypt 1997 99 abstract this paper uses a panel data of 347 households in egypt to measure changes in household consumption during 1997 99 and to identify causes behind the changes per capita consumption has decreased for the households during this time the decrease has not been dramatic but it has occurred at all points along the distribution over the two year period the number of households who have fallen into poverty is over twice as large as the number of households who have climbed out of poverty about two thirds of overall poverty is chronic average consumption over time is below the poverty line and almost half of all poor are always poor we use quantile regression methods to identify the factors that explain total chronic and transitory poverty while our analysis is able to document the extent of transitory poverty it performs relatively poorly in explaining the determinants of this type of poverty the predominantly chronic nature of poverty in our sample and our ability to identify associated characteristics strengthens the case for targeting antipoverty interventions such as food subsidies

are women overrepresented among the poor an analysis of poverty in 10 developing countries abstract this paper presents new evidence on the proportion of women in poverty in 10 developing countries it compares poverty measures for males and females and for male and female headed households and investigates the sensitivity of these measures to the use of per capita and per adult equivalent units and different definitions of the poverty line while poverty measures are higher for female headed households and for females the differences are significant in only a fifth to a third of the datasets the contribution of female headed households to aggregate poverty is less than that of females due to the low population share of the former stochastic dominance analysis reveals that differences between male and female headed households and between males and females are often insignificant except for ghana and bangladesh where females are consistently worse off these results suggest that cultural and institutional factors may be responsible for higher poverty among women in these countries our results point to the need to analyze determinants of household income and consumption using multivariate methods and to give greater attention to the processes underlying female headship

targeting the poor in mexico an evaluation of the selection of households into progresa abstract in this paper we conduct an evaluation of the targeting method used by health education and nutrition program progresa of mexico to identify beneficiary households we address two key questions a how well does progresa s targeting perform and b how does the program perform in terms of its impact on poverty alleviation relative to other feasible methods and transfer schemes the first question is accomplished by comparing progresa s method to an alternative selection method based on household consumption which is our preferred measure of welfare we employ the concepts of undercoverage and leakage and find that progresa selection method is more effective in identifying the extremely poor localities or households but less so when it comes to distinguishing among localities or households in the middle of the scale to address the second question we compare the potential impact of progresa on poverty alleviation against uniform transfers that involve no targeting at all targeting based on consumption and geographic targeting i e targeting at the locality level rather than at the household level we find that progresa s method of targeting households outperforms uniform coverage and targeting at the locality level in terms of reducing the poverty gap and severity of poverty indices even after taking into account the economic costs of targeting but the closeness of progresa s performance to what could be achieved by geographic targeting alone raises some serious questions about the costs and benefits associated with the practice of household targeting within poor localities

accounting for selectivity and duration dependent heterogeneity when estimating the impact of emigration on incomes and poverty in sending areas the impacts of international emigration and remittances on incomes and poverty in sending areas are increasingly studied with household survey data but comparing households with and without emigrants is complicated by a triple selectivity problem first households self select into emigration second in some emigrant households everyone moves while others leave members behind and third some emigrants choose to return to the origin country allowing for duration dependent heterogeneity introduces a fourth form of selectivity one must now worry not just about whether households migrate but also when they do so this paper clearly sets out these selectivity issues and their implications for existing migration studies and then addresses them by using survey data designed specifically to take advantage of a randomized lottery that determines which applicants to the over subscribed samoan quota may immigrate to new zealand the analysis compares incomes and poverty rates among left behind members in households in samoa that sent samoan quota emigrants with those for members of similar households that were unsuccessful in the lottery policy rules control who can accompany the principal migrant providing an instrument to address the second selectivity problem while differences among migrants in which year their ballot was selected allow for estimation of duration effects the authors find that migration reduced poverty among former household members but they also find suggestive evidence that this effect may be short lived as both remittances and agricultural income are negatively related to the duration that the migrant has been abroad

poverty reduction without economic growth explaining brazil s poverty dynamics 1985 2004 brazil s slow pace of poverty reduction over the last two decades reflects both low growth and a low growth elasticity of poverty reduction using gdp data disaggregated by state and sector for a twenty year period this paper finds considerable variation in the poverty reducing effectiveness of growth across sectors across space and over time growth in the services sector was substantially more poverty reducing than was growth in either agriculture or industry growth in industry had very different effects on poverty across different states and its impact varied with initial conditions related to human development and worker empowerment the determinants of poverty reduction changed around 1994 positive growth rates and a greater absolute elasticity with respect to agricultural growth contributed to faster poverty reduction but because there was so little of it economic growth played a relatively small role in accounting for brazil s poverty reduction between 1985 and 2004 the taming of hyperinflation in 1994 and substantial expansions in social security and social assistance transfers beginning in 1988 accounted for a larger share of the overall reduction in poverty

carbon taxes and carbon emissions trading this paper surveys the literature on and examples of current implementation of carbon taxes and carbon emission permits it sets out the theoretical basis for these instruments with special reference to the revenue recycling and tax interaction effects this theoretical work concludes that instruments which raise revenue which can be recycled so as to reduce pre existing distortionary taxes are significantly less costly than those which do not the paper then reviews the sizable literature on the distributional effects of these instruments especially with regard to industrial competitiveness and regressive effects on low income groups evaluating attempts to mitigate these where they are perceived as unacceptable the paper concludes that such efforts at mitigation while possible can substantially reduce the efficiency benefits of the instruments the projected costs of carbon taxes depend on a wide range of assumptions this is still a contested area but the paper concludes that on a range of plausible assumptions these costs need not be high finally the paper notes that early evaluations of the environmental effectiveness of carbon taxes have been generally positive this suggests that if concern about anthropogenic climate change continues to increase more countries will introduce carbon taxes and emission permits with the latter increasingly auctioned

widowhood and poverty in rural india some inferences from household survey data abstract this paper examines the relationship between widowhood and poverty in rural india based on national sample survey data on consumer expenditure in terms of standard poverty indices based on household per capita expenditure there is no evidence of widows being disproportionately concentrated in poor households or of female headed households being poorer than male headed households these findings also apply in terms of adult equivalent consumption for any reasonable choice of equivalence scales poverty indices for different household types however are quite sensitive to the level of economies of scale even relatively small economies of scale imply that the incidence of poverty among single widows widows living with unmarried children and female household heads all of whom tend to live in relatively small households is higher than in the population as a whole

poverty and survival a recent literature highlights the uncertainty concerning whether economic growth has any causal protective effect on health and survival but equal rates of growth often deliver unequal rates of poverty reduction and absolute deprivation is more clearly relevant using state level panel data for india we contribute the first estimates of the impact of changes in poverty on infant survival we identify a significant within state relationship which persists conditional upon state income indicating the size of survival gains from redistribution in favour of households below the poverty line the poverty elasticity declines over time after 1981 it is invariant to controlling for income inequality but diminished upon controlling for education fertility and state health expenditure and eliminated once we introduce controls for omitted trends

the power of the vegetable patch how home grown food helps large rural households achieve economies of scale escape poverty this paper explores how the household s capacity to grow food impacts their ability to achieve economies of scale in food consumption and how this impacts the geographic distribution of poverty across rural and urban areas an accurate understanding of consumption economies of scale is vital for comparing poverty levels across households of varying size using sri lankan data on home grown food consumption we empirically confirm that such economies of scale exist and that large households tend to consume relatively more home grown food than smaller households the magnitude of these scale economies are found to be larger than those in market purchased food but smaller than those found in housing expenditure consuming more home grown food is also found to be positively correlated with per capita calories consumed taking these effects into account in poverty estimates leads to a 15 per cent decline in the number of household who fall below the poverty line in rural regions

how robust is a poverty profile comparison of poverty such as when poverty is greatest typically matter far more for policy choices than do aggregate measures of poverty such as how many people are deemed poor the authors examine alternative methods for constructing poverty profiles focusing on their internal consistency and appropriateness for guiding policy none is perfect but some methods appear to be preferable to others when the aim is to inform policies for fighting absolute consumption poverty a case study on indonesia reveals that the country s regional and sectoral poverty profile is highly sensitive to some aspects of measurement but quite robust to others

dependency of organic farms on direct payments in selected eu member states today and tomorrow this paper examines the development of the role of government support in the financial situation of organic farms in selected western and eastern european countries contrasting dependency on direct payments with that of conventional farms and assessing the impact of foreseeable changes in the political and economic environment the results show that direct payments play an important role in the financial viability of organic farms in both western and eastern european countries the level of specific support for organic farming is put into perspective as other support payments and market returns contribute larger shares to total farm revenue in all the countries analysed modelling analyses show that support payments will continue to play an important role in the profitability of organic farms in western europe after implementation of the 2003 reform of common agricultural policy in the eu for organic farmers in eastern european countries the importance of support payments increases strongly with eu accession as first pillar payments are introduced and environmental payments are expanded significantly

are female headed households more food insecure evidence from bangladesh summary this paper uses household and village level survey data to investigate the food security of male and female headed households in bangladesh with particular attention to indigenous ethnic groups and finds no significant differences in the food security between these two types of households the absence of social and cultural restrictions among the indigenous groups permitting their females greater freedom to participate in the labor force coupled with informal redistributive mechanism is attributed to their less food insecurity this result indicates that noneconomic institutions can significantly impact economic outcomes such as food security

the political economy of food subsidy reform the case of egypt abstract this paper examines the political economy of food subsidy reform efforts in egypt egypt provides a case of a country with a large food subsidy program that has been relatively effective as a social safety net but a program that is also expensive and poorly targeted to the needy policy discussions about strategies to improve the system s performance run into the extreme political sensitivity of the issue of food subsidies in egypt food subsidies are perceived to be important in promoting political stability and providing some legitimacy to a political system where civil liberties are limited egypt therefore illustrates the dilemmas facing policymakers and others contemplating food subsidy reform in developing countries where there are concerns that reform may spark political unrest this paper argues that even in cases where food subsidy reform is a highly politicized issue there are still a number of pragmatic policy steps that can be taken that meet the twin goals of reforming the system in ways that better target the poor while functioning more efficiently

domestic technology consumption economies of scale and poverty evidence from sri lanka while it is well known that new technologies enhance consumer welfare the manner in which these technologies impact the ability to realize economies of scale in consumption is not well understood we use sri lankan household data to examine how the adoption of new technologies by households positively impacts their ability to achieve household economies of scale this suggests that new technologies not only deliver a greater variety of consumption goods to consumers but they may also play an important role in enabling large households to escape poverty by lowering the per capita costs of maintaining a given standard of living given the importance of consumption economies of scale in the measurement of poverty this study provides some insights on the extent to which the number of poor households changes when food consumption scale economies due to technology adoption in the domestic sphere are incorporated

technical efficiency of alternative farming systems the case of greek organic and conventional olive growing farms abstract olive growing is a major farming activity in greek agriculture this paper analyzes empirically the technical efficiency of organic and conventional olive growing farms using a stochastic production frontier methodology and a translog functional specification findings indicate that the organic olive growing farms examined exhibit a higher degree of technical efficiency relative to their production frontier than do conventional olive growing farms reasons may include lower profit margins and restrictions on inputs permitted thus forcing organic farmers to be more cautious with input use however both input and output oriented technical efficiency scores are still relatively low for both types of olive farming thus there is considerable scope for cost reducing and farm income improvement in both farming modes this could prove crucial for the long run viability and the future course of the sector

household equivalence scales theory versus policy researchers agree that household equivalence scales are intended to measure the variation in income needed to bring households of different composition to the same welfare level researchers do not agree however about how the term household welfare is to be defined this article traces the historical and philosophical development of three distinct definitions when the conceptual bases of several popular methods for the estimation of equivalence scales are explored it becomes clear that advances in theoretical rigor have not always worked to bring the literature closer to answering questions of policy concern

issues in measuring and modeling poverty economists have relied heavily on household incomes or expenditures normalized for differences in household specific prices and demographics in their research and policy advice related to poverty and inequality recognizing the conceptual and empirical problems that confound such measures does not mean that they should be ignored instead it indicates the need for supplementary measures to capture the missing items implementing a genuinely multidimensional approach will often make the welfare rankings of social states more difficult but that fact points to the nonrobustness of low dimensional rankings this may have its own policy ramifications with the possibility of correspondence between policy instruments and welfare objectives the model types used to understand the poverty and inequity determination processes will be affected not only will there be more dependent variables to consider but variables will have potentially complex relationships these relationships will often be hard to empirically disentangle despite richer integrated and longitudinal data sets such data open rich and relevant agenda for research into the dynamics of poverty along multiple dimensions a simultaneous attack on these issues from all three fronts measurement modeling and data offers hope of establishing a credible empirical foundation for public action in fighting poverty

poverty transition and persistence in ethiopia 1994 2004 summary this study analyzes the persistence of poverty in both rural and urban areas in ethiopia during 1994 2004 the key finding is that households move frequently in and out of poverty but the difficulty of exiting from poverty like the chance of avoiding slipping back increases with the time spent in that state and varies considerably between male and female headed households our results imply that it is important to design anti poverty policies both to hinder households from slipping into extreme poverty and to minimize the length of the poverty spell for households once they have fallen into it

children and household economic behavior this paper looks at some of the methodological issues that arise in modeling the effects of children on household behavior and presents some estimates for selected areas for our purposes household behavior will be taken to refer to household decisions on labor supply the allocation of expenditure to different periods and the decision as to what to do with the difference between income and expenditure i shall be concerned mainly with the effects of dependent children and i restrict attention largely to western societies excerpt

measuring poverty and differences in family composition the equivalence scales used to adjust for differences in family composition when measuring poverty exhibit considerable variation this paper suggests an alternative approach that allows for differences in social judgements regarding the treatment of different types of family and examines the relation with the choice of poverty measure the resulting dominance criteria cannot provide a complete ranking but allow the extent of disagreement to be identified their application is illustrated by the example of changes in child benefits copyright 1992 by the london school of economics and political science

capacity utilisation and profitability a decomposition of short run profit efficiency the principal aim of this paper is to measure the amount by which the profit of a multi input multi output firm deviates from maximum short run profit and then to decompose this profit gap into components that are of practical use to managers in particular our interest is in the measurement of the contribution of unused capacity along with measures of technical inefficiency and allocative inefficiency in this profit gap we survey existing definitions of capacity and after discussing their shortcomings we propose a new ray economic capacity measure that involves short run profit maximisation with the output mix held constant we go on to describe how the gap between observed profit and maximum profit can be calculated and decomposed using linear programming methods the paper concludes with an empirical illustration involving data on 28 international airline companies the empirical results indicate that these airline companies achieve profit levels which are on average us 815m below potential levels and that 70 of the gap may be attributed to unused capacity

community targeting for poverty reduction in burkina faso this article develops a method for targeting antipoverty programs and public projects to poor communities in rural and urban areas the method calls for constructing an extensive data set from a large number of sources and then integrating the entire set into a geographic information system the data set includes demographic data from the population census household level data from a variety of surveys community level data on local road infrastructure public facilities water points and so on and department level data on agro climatic conditions an econometric model that estimates the impact of household community and department level variables on household consumption is used to identify the key explanatory variables that determine the standard of living in rural and urban areas this model is then applied to predict poverty indicators for 3 871 rural and urban communities in burkina faso and to map the spatial distribution of poverty in the country a simulation analysis assesses the effectiveness of village level targeting based on these predictions the results show that such targeting is an improvement over regional targeting in that it reduces leakage and under coverage

investigating the determinants of household welfare in cote d ivoire to predict the effect of economic policies on household welfare one should first understand which characteristics of households and of the localities in which they live enable them to raise their welfare levels this paper outlines a simple procedure for investigating the determinants of household welfare and demonstrates its use with recent data from cote d ivoire despite the relative simplicity much information is obtained from its use on cross sectional survey data results specific to cote d ivoire include high low returns to education in urban rural areas high benefits from cocoa land relative to coffee land a significant impact on economic welfare from the availability of medical services and no apparent benefits from agricultural extension services

household economies of scale in consumption theory and evidence household economies of scale arising from the existence of househo ld public goods increasing returns in household production and or bulk discounts are incorporated into a utility theoretic model of household demands individuals are assumed to be identical and symmetrically treated within households economies of scale parameters for five goods are estimated using the quadratic expenditu re system and data from the u s consumer expenditure survey on expenditures by all adult households results suggest the existence o f significant economies of scale in the consumption of all of the included goods with economies being especially pronounced in the consumption of shelter copyright 1988 by the econometric society

poverty in egypt modeling and policy simulations abstract poverty profiles are a useful way of summarizing information on the levels of poverty and the characteristics of the poor in a society but they are limited by the bivariate nature of their informational content using the 1997 egypt integrated household survey eihs this article estimates models of household consumption in the first stage and then predicts poverty rates corresponding to changes in potential policy variables the key results of the study point to the important instrumental role of education parental background land redistribution and access to health facilities in alleviating poverty in egypt

sulfur dioxide control in china policy evolution during the 10th and 11th five year plans and lessons for the future china s central government established national goals to reduce sulfur dioxide so2 emissions by 10 in both the 10th and 11th five year plan periods 2001 2005 and 2006 2010 respectively but the early policies were unsuccessful at reducing emissions emissions increased 28 during the 10th five year plan after adapting a number of policies and introducing new instruments during the 11th five year plan so2 emissions declined by 14 we examine the evolution of these policies their interplay with technical and institutional factors and capture lessons from the 11th five year plan to guide future pollution control programs we find that several factors contributed to achievement of the 11th five year plan so2 reduction goal 1 instrument choice 2 political accountability 3 emission verification 4 political support 5 streamlined targets and 6 political and financial incentives the approach integrated multiple policy instruments market based command and control and administrative instruments specific to the chinese context the evolution of so2 reduction policies and programs has implications for further so2 reductions from power plants and other sources as well as control of other atmospheric pollutants such as nitrogen oxides nox and carbon dioxide co2 in china

on the measurement of poverty official statistics in the united states and the united kingdom show a rise in poverty between the 1970 s and the 1980 s but scepticism has been expressed with regard to these findings in particular the methods employed in the measurement of poverty have been the subject of criticism this paper re examines three basic issues in measuring poverty the choice of the poverty line the index of poverty and the relation between poverty and inequality one general theme running through the paper is that there is a diversity of judgments which enter the measurement of poverty and that it is necessary to recognize these explicitly in the procedures adopted there is likely to be disagreement about the choice of poverty line affecting both its level and its structure in this situation we may only be able to make comparisons and not to measure differences and the comparisons may lead only to a partial rather than a complete ordering the first section of the paper discusses the stochastic dominance conditions which allow such comparisons illustrating their application by reference to data for the united states the choice of poverty measure has been the subject of an extensive literature and a variety of measures have been proposed in the second section of the paper a different approach is suggested considering a class of measures satisfying certain general properties and seeking conditions under which all members of the class which includes many of those proposed give the same ranking those sceptical about measures of poverty often assert that poverty and inequality are being confounded the third section of the paper distinguishes four different viewpoints and relates them to theories of justice and views of social welfare

generating disaggregated poverty maps an application to vietnam abstract previous research shows that geographic targeting in poverty programs is not accurate unless the geographic units are small household surveys however can rarely estimate poverty rates for more than 5 10 regions this study uses data from vietnam to illustrate a method for generating disaggregated poverty maps first the relationship between poverty and household indicators is estimated using survey data then census data on those same indicators are used to estimate poverty rates for each of the 543 rural districts the results indicate that vietnamese poverty is concentrated in the north and in districts furthest from the coast and cities

the robustness of poverty profiles reconsidered poverty measures and profiles are used increasingly to guide antipoverty policies in low income countries an essential element in these analyses is the specification of a poverty line however there are many different methods for setting poverty lines and different methods can yield strikingly different results with correspondingly different policy implications using recent household survey data from mozambique this paper explores the differences that occur using the most common poverty line methodologies the food energy intake fei and the cost of basic needs cbn methods over different levels of geographic specificity we find that regional and provincial rankings of foster greer and thorbecke poverty indices are not robust to the method of poverty line determination but that the characteristics of the poor are reasonably similar under all methods the fei poverty lines often yield counterintuitive results whereas the family of cbn poverty lines was more robust food consumption patterns of the poor show a high degree of substitution among basic staples from one region to another which is consistent with observed differences in relative food prices indicating that cbn poverty lines that allow for regional variation in the food consumption bundle may be most appropriate in these settings