a large scale linear complementarity model of the north american natural gas market abstract the north american natural gas market has seen significant changes recently due to deregulation and restructuring for example third party marketers can contract for transportation and purchase of gas to sell to end users while the intent was a more competitive market the potential for market power exists we analyze this market using a linear complementarity equilibrium model including producers storage and peak gas operators third party marketers and four end use sectors the marketers are depicted as nash cournot players determining supply to meet end use consumption all other players are in perfect competition results based on national petroleum council scenarios are presented

explaining the transitions out of unemployment in spain the effect of unemployment insurance a multinomial logit model and matched files from the spanish active population survey epa are used to study transitions out of unemployment among men aged 20 59 in addition to demographic characteristics other explanatory variables included in the regressions pertain to previous job characteristics and the spell of unemployment in this article special attention is paid to the impact of unemployment insurance benefits on the re employment probability consistent with previous work it is found that receipt of unemployment insurance is associated with lower probabilities of re employment and of withdrawal from the labour force more importantly a differential effect of benefit receipt is obtained when comparing time periods before and after 1992 indeed in april of that year the labour authority made eligibility requirements for unemployment insurance more restrictive and curtailed benefit amounts

an assessment of proposed energy resource tax reform in russia a static general equilibrium analysis abstract a large part of government revenues in russia comes from royalties and export taxes on crude oil oil products and gas recently the russian government has considered reducing export taxes on crude oil and oil products compensated by an increase in the royalty on crude oil the objective of the paper is to analyse the economy wide effects of this proposal moreover a hypothetical replacement of export taxes and royalties with a pure rent tax is analysed a static single country multi sector computable generation equilibrium cge model is employed the primary findings are as follows a replacement of export taxes on crude oil and oil products with a royalty on crude oil provides substantial allocative efficiency gains but this policy is not a superior one welfare could be substantially improved when the export taxes and royalty are replaced with a pure rent tax that can be implemented in the form of a cash flow tax on the negative side reducing export taxes on crude oil and oil products results in a strong appreciation of the currency as a result domestic producers become less competitive in domestic markets and there is a massive increase in import demand

should russia increase domestic prices for natural gas previous analyses of russia s dual pricing system and hidden subsidies for natural gas have neglected to assess the dual pricing system as a domestic environmental policy if dual pricing is considered as a policy to reduce conventional air pollutants it is more than economically justified in russia on the basis of avoided health risks in the short term the substitution of coal for natural gas may result in significant additional human health risk which translates into economic damage an alternative abatement possibility is expensive and unlikely enforceable due to weak environmental regulation the authors conclude that while the price differential can be expected to diminish over time as russia increasingly moves to a market economy in the near term dual pricing of natural gas remains the most efficient environmental policy for russia

ethically flexible measures of poverty this paper introduces new measures of both relative and absolute poverty using the notion of representative income of a community corresponding to the censored income distribution these new measures satisfy the monotonicity and transfer axioms proposed by sen 1976 in all cases

the impact of the potential duration of unemployment benefits on the duration of unemployment abstract this paper examines the impact of the potential duration of unemployment insurance ui benefits on unemployment in the united states first we use a large sample of household heads to examine differences in the unemployment spell distributions of ui recipients and nonrecipients sharp increases in the escape rate from unemployment both through recalls and new job acceptances are apparent for ui recipients around the time of benefits exhaustion such increases are not apparent at similar points of spell duration for nonrecipients second our analysis of accurate administrative data from 12 states indicates that a one week increase in potential benefit duration increases the average duration of the unemployment spells of ui recipients by 0 16 to 0 20 weeks

on shorrocks reinvestigation of the sen poverty index this paper demonstrates that the shorrocks econometrica 63 225 1230 1995 modification of the sen econometrica 44 219 231 1976 poverty index drops out as a particular case of the chakravarty canadian journal of economics 16 74 85 1983 general ethical index of poverty

bayesian semiparametric estimation of discrete duration models an application of the dirichlet process prior this paper proposes a bayesian estimator for a discrete time duration model which incorporates a non parametric specification of the unobserved heterogeneity distribution through the use of a dirichlet process prior this estimator offers distinct advantages over the nonparametric maximum likelihood estimator of this model first it allows for exact finite sample inference second it is easily estimated and mixed with flexible specifications of the baseline hazard an application of the model to employment duration data from the canadian province of new brunswick is provided copyright 2001 john wiley sons ltd

how income transfer programs affect work savings and the income distribution a critical review for helpful comments on earlier drafts we thank without implicating moses abramovitz yves balcer john bishop alan blinder richard burkhauser michael darby irwin garfinkel alan gustman daniel hamermesh martin holmer george jakubson robert lampman paul menchik robert moffitt michael murray joseph quinn timothy smeeding eugene smolensky barbara wolfe and two anonymous referees

an econometric analysis of reservation wages this paper describes an analysis of survey data on unemployed people who reported their asking wage and the wage they expected to earn we show that if agents behavior is described by the standard optimal job search model one can use these data to deduce structural parameters rather than estimate them and we report our deductions from two surveys 1 of british unemployed people

how does the unemployment insurance system shape the time profile of jobless duration this paper examines the effects of unemployment insurance on escape rates from unemployment using data from the 1998 displaced worker survey transitions from unemployment to employment are modeled using a flexible representation of the baseline hazard function and allowing for discrete changes through time in the effects of unemployment insurance benefits as well as those of the other covariates the impact of unemployment insurance is also modeled using a time varying benefits measure namely time to exhaustion of benefits potential biases stemming from reverse causation and unobserved individual heterogeneity are accommodated both approaches render transparent the major disincentive effects of access to benefits on re employment rates while also providing evidence of time varying effects of other regressors

an assessment of optimal gas pricing in russia a cge approach domestic gas prices in russia are administratively regulated and they are substantially lower than export netback prices the administrative price regulation operates as an implicit subsidy on domestic gas consumption the russian government aims to liberalise domestic wholesale gas prices in the long term while the export netback parity is defined as a political objective it seems not to be a necessary target anymore the export netback parity is not economically rational for russia because the average export netback price of gas is higher than the marginal cost due to gazprom s market power in export gas markets an optimal domestic gas price is still not well defined this paper addresses this question by employing a comparative static single country multi sector computable generation equilibrium model cge the administrative regulation of domestic gas prices is explicitly modelled the main findings are as follows an increase in the domestic gas price provides economic efficiency gains the more elastic the export and domestic demand for gas the larger the welfare gains the optimal domestic gas price should be approximately 55 of the export netback price increasing the domestic gas price provides additional government revenues which can be used to reduce distortionary taxes on sectoral effects the structure of the russian economy shifts from energy toward non energy intensive sectors in response to an increase in the domestic gas price there is an increase in the export supply of gas furthermore an increase in the domestic gas price leads to a reduction in total co2 emissions

on earnings related unemployment benefits and their relation to earnings an aspect of unemployment in britain that has been much discussed in recent years is the possible disincentive effects of unemployment benefits paradoxically the actual pattern of receipt of those benefits is hardly considered at all one reason for this is the popular belief that actual receipt follows a well defined hypothetical pattern this belief is encouraged by the government s representation of the benefit system for instance the department of health and social security dhss regularly publish hypothetical calculations of benefit receipt e g social security statistics i982 table 46 i4 and government answers to parliamentary questions are typically based on these figures economists frequently take these hypothetical calculations at face value when trying to model the effect of unemployment benefits on labour supply in a time series framework or in the case of micro analysis make similar calculations for each individual in the data set calculations are based on a limited set of stylised rules which are considered to capture the essence of the workings of the benefit system however estimates of the disincentive effects of benefits do not appear to be robust to the method of calculation atkinson et al i984 this emphasises the need for more precise modelling of the determinants of benefit receipt this paper is concerned with modelling the receipt of the benefit that has been at the heart of the incentives debate earnings related supplement ers was the element of national insurance unemployment benefit in the united kingdom that was linked to some measure of past earnings several commentators in the mid1 970s purported to show that its introduction in i 966 led to a marked rise in unemployment in the late i96os e g maki and spindler i975 and its abolition under the i980 social security no 2 act was certainly due in part to the belief that it discouraged work in investigating the receipt of this benefit the paper provides a case study of the difficulties in modelling the incomes of the unemployed and a cautionary tale to any investigator who does not have all the information necessary for precise calculation of budget constraints the typical assumption that has been made when simulating ers in micro data sets of unemployed individuals is that the relevant earnings that generate an ers payment may be successfully proxied by normal weekly earnings immediately prior to unemployment we may call this proxy the hypothetical model of ers receipt and the focus of the analysis is a test of this model using data on

does unemployment compensation affect unemployment duration abstract we use a flexible hazard rate model with unrestricted spell duration and calendar timeeffects to analyse a dataset including all norwegian unemployment spells during the1990 s the dataset provides a unique access to conditionally independent variation inunemployment compensation we find that a marginal increase in compensation re duces the escape rate from unemployment significantly irrespective of business cycleconditions and spell duration the escape rate rises sharply in the months just prior tobenefit exhaustion while men are more responsive than women with respect to mar ginal changes in compensation women are most responsive with respect to benefitexhaustion keywords unemployment spells business cycles unemployment compensation non parametric duration analysis jel classification c41 j64 the ragnar frisch centre for economic research oslo we wish to thank the re search council of norway for financial support and christian brinck harald goldstein costas meghir espen moen steinar strom rolf aaberge and three anonomyous referees for helpful comments cor respondence to knut roed the ragnar frisch centre for economic research gaustadalleen 21 0349oslo norway e mail knut roed frisch uio no

economy wide effects of international and russia s climate policies abstract the objectives of this paper are to analyse the economy wide effects of international climate policy on the russian economy as well as the effects of russia s climate policy on european economies our analysis is based on a general equilibrium model that includes inertias such as imperfect sectoral labour mobility and vintage capital and has a detailed depiction of the power generation sector we found that international climate policy could reduce russia s private welfare by 1 8 annually due to lower revenues from exports of fossil fuels at the sectoral level russia could gain a comparative advantage in producing energy intensive commodities and hence russia s producers of those commodities increase their production and export supplies this could result in a carbon leakage in russia eliminating implicit subsidies on domestic consumption of gas and petroleum products could reduce russia s private welfare loss by 0 6 points and eliminate the carbon leakage nevertheless eliminating implicit subsidies on gas and petroleum products might not be sufficient to achieve the pledged emission reductions by 2030 moreover this leads to an undesirable increase in coal consumption and therefore some additional climate policy such as a carbon tax or an emission trading system might be required we also found that russia s climate policy could have positive but moderate effects on the european economies in particular countries such as lithuania slovakia and hungary benefit due to decreased export prices for gas crude oil and petroleum products from russia

unemployment benefit duration and incentives in britain how robust is the evidence abstract recent years have seen considerable advances in the econometric treatment of micro data in models of unemployment duration this paper examines the evidence from such models concerning the effects of unemployment benefits on incentives to work in britain widely accepted results of a small but significant benefit effect are reproduced using a sample of 1 231 unemployed men however these results are only found when benefit receipt is assumed to follow a hypothetical pattern which is shown to be unrealistic and over generous when more realistic calculations of benefits are used no benefit effect is found the paper also argues that search theory is of little help in determining the choice between competing functional forms and explanatory variables results concerning benefits are shown to be sensitive to the latter

employment spells and unemployment insurance eligibility requirements in this paper we examine whether the requirements that workers must satisfy to qualify for unemployment insurance ui benefits in any succeeding period of joblessness affect the duration of employment spells this behavioral consequence of a ui system has been neglected in empirical research which has instead focused on the effects of ui parameters on the actions of the unemployed the effect is identified by a unique change in the eligibility requirements of the canadian ui system in 1990 which increased the weeks of employment required to establish ui eligibility we provide a variety of estimates of this behavioral effect in our preferred set of results we find a significant increase in the employment hazard in the week that an individual satisfies the eligibility requirement in many regions of the country in the spirit of feldstein s 1976 study of temporary layoffs the results provide new evidence of the impact of ui system parameters on the actions of employers and workers

inflation tax rules and investment some econometric evidence this paper presents econometric evidence on the effect of tax incentives on business investment in the united states in the period from 1953 through1978 the analysis emphasizes that the interaction of inflation and existing tax rules has contributed substantially to the decline of business investment since the late 1960 s because the investment process is far too complex for any simple econometric model to be convincing i have estimated three quite different models of investment behavior the strength of the empirical evidence rests on the fact that all three specifications support the same conclusion more generally the analysis and evidence show that theoretical models of macroeconomic equilibrium should specify explicitly the role of distortionary taxes especially taxes on capital income the failure to include such tax rules can have dramatic and misleading effects on the qualitative as well as the quantitative properties of macroeconomic theories this paper was presented as the fisher shultz lecture at the fourth world congress of the econometric society 29 august 1980 in aix en province this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this abstract was borrowed from another version of this item

labour market signalling and unemployment duration an empirical analysis using employer employee data we test the signalling hypothesis using detailed flow based employer employee data from denmark our main findings are the signalling value is proportional to the proportion of employees dismissed from the workplace and the signal is uniform across occupation groups

how does the benefit effect vary as unemployment spells lengthen summary this paper investigates how the effect of income while unemployed on the probability of an individual leaving unemployment varies with the length of time that the individual has been unemployed we examine this question in the context of a variety of alternative econometric models we extend the proportional hazards model with unrestricted baseline hazard to one in which there are unrestricted effects of a subset of the explanatory variables and also consider models that can be estimated as series of binary response models the proportional hazard restrictions are rejected for the sample of british unemployed men analysed and in the binary sequence framework logit and probit models based on symmetric distributions dominate in likelihood terms the extreme value form model implied by extension of the proportional hazards formulation logit models with a flexible form for the duration dependence which also incorporate unobserved heterogeneity in a flexible way are estimated the results for all formulations indicate a rapidly declining effect of unemployment income as a spell lengthens with no significant effect for the long term unemployed the preferred specifications which allow for omitted heterogeneity indicate no significant effect after about 5 months and this result is robust to the inclusion or exclusion of previous labour market experience variables and to the choice of mixing distribution

when is a break up of gazprom good for russia in the late 1990s several proposals for a structural reform that would bring competition and market prices to the russian gas industry were intensely debated splitting up russian gas monopolist gazprom into several producing companies was a considered option in this paper i examine theoretically and numerically how a split up of gazprom would affect russian national welfare results show that under the current gas market structures in europe and russia the split up of gazprom s monopoly might not be beneficial for russia however analysis in the paper indicates that the market shares that gazprom has in both russian domestic and european gas markets are important in determining whether gazprom s dominance is supported under the national welfare criteria when gazprom has small market share in europe and large market share in russia a break up of gazprom might plausibly result in increase of russian national welfare

on the watts multidimensional poverty index and its decomposition summary the multidimensional extension of the watts poverty index may be expressed as a function of five determinants measuring respectively the impacts of what are defined in the paper as the watts poverty gap ratio the theil bourguignon index of inequality among the poor the overall headcount ratio the weights of the various dimensions and some measure of correlation between the various dimensions using the shapley decomposition we apply this index to world data on the per capita gdp life expectancy and literacy rates and derive the contributions of the five determinants defined above to the variation of this index during 1993 2002

the merits of dual pricing of russian natural gas our analysis reveals that from russia s perspective there is no economic rationale to unify the price of natural gas it sells domestically and in europe we argue that pipelines allow gazprom to segment the russian market from the european including turkey market and that russia has market power in the european market if russia were to fail to exploit this market power in its european market by selling its natural gas to europe at only full long run marginal cost plus transportation costs russia would lose between 5 billion and 7 5 billion per year almost two per cent of its gdp if instead russia were to raise its domestic prices to the prices it charges in europe russian industry would incur very large investment adjustment and unemployment costs in the short run adjustment costs that cannot be justified on the basis of comparative advantage we estimate that the efficient world price would be achieved if gazprom were to employ its optimal two part tariff the optimal two part tariff would double gazprom s annual profits in europe but it involves significant long term risks for gazprom of lost market share

the impact of being offered and receiving classroom training on the employment histories of disadvantaged women evidence from experimental data we address two questions using experimental data on disadvantaged women first what is the impact of being offered jtpa classroom training on the duration of unemployment and employment second what is the effect of actually participating in this training on the length of such spells belonging to the treatment group shortens unemployment spells but has no effect on employment spells actually participating in training has a larger positive effect on the exit rate from unemployment than the effect of simply being a member of the treatment group ignoring the endogeneity of actual training in estimation substantially underestimates its effect

search behaviour transitions to non participation and the duration of unemployment using longitudinal micro data on unemployed individuals for 1983 85 a structural job search model is estimated the model allows for transitions from unemployment to nonparticipation an extended version of the model deals with the influence of on the job search and prospective wage increases on search behavior of the unemployed the empirical results show that the probability of accepting a job offer is almost one for most unemployed individuals a large portion of unemployment spells ends in a transition out of the labor force the effects of changes in benefits on duration appear to be extremely small copyright 1990 by royal economic society

russian gas price reform and the eu russia gas relationship incentives consequences and european security of supply in order to provide a comprehensive picture on the relationship between russia and the eu the focus should be on both the external energy relationship as well as russia s internal organization this paper sets out to do this by combining both strands of research in order to arrive at recommendations for europe on the way to adjust its energy policy towards russia the emphasis is on whether or not russia should impose unified gas pricing main conclusions are that the perceived advantages of unified russian gas pricing to russia as well as europe are in fact overstated and that eu security of supply might worsen under unified gas prices three policy recommendations are that eu policy should 1 more explicitly acknowledge the interdependence between russia and europe 2 not push russia towards unified gas pricing and 3 not take for granted any increase in russian exports flowing to europe

review of key international demand elasticities for major industrializing economies abstract this paper conducts a selective review of various estimates for energy demand responses focused specially upon lower income industrializing economies rather than richer mature nations it emphasizes recent trends from empirical studies that have been published after 2000 emphasis is placed on the five major emerging or transitional economies in brazil china india mexico and russia although other important nations like chile and south korea are also discussed when studies are available the review focuses attention on the long run responses to changes in prices and income after capital stock turnover has been completed the terminology often refers to elasticities or the percentage change in energy use divided by the percentage change in price or income holding constant all other factors that could influence energy use decisions estimates cover petroleum products natural gas and electricity although the available studies often ignore coal they also include the economy wide impacts real gdp to price changes most studies have focused upon household and transportation use of liquid fuels many fewer studies have investigated fuels used by industry or commerce or for electric generation based upon the available estimates price and income elasticities for liquid fuels are generally less than one unity for many countries and sectors except for the long run income effect for transportation purposes which can range widely by country between 0 24 and 1 75 while averaging 0 94 for all countries

the effects of the 2006 tuition fee reform and the great recession on university student dropout behaviour in the uk abstract this paper investigates the causal effect of the great recession and a conditional effect of a tuition fee reform on the risk of students dropping out of he we use hesa data and our analysis combines duration modelling with difference in differences we find that the causal effect of the recession increases the risk of drop out especially for males a smaller and positive effect of the tuition fee reform for males whereas we observe the opposite effect for females differences in dropout behaviour are also found for high and low income groups and between different types of university and subjects studied

welfare approaches to the measurement of poverty a set of poverty indices is constructed which is based on an explicit view of the loss of social welfare which results from the existence of poverty in comparison t o a society in which poverty has been eliminated the indices are based on the entire distribution of income rather than only the incomes of the poor and thus embody the concept of relative deprivation formal properties of the indices are developed together with their relationship to welfare based inequality indices both are seen as subsets of a wider choice of measures dependent on a particular choice of reference distribution copyright 1987 by royal economic society

a strategic model of european gas supply gasmod abstract this paper presents a model of the european natural gas supply gasmod which is structured as a two stage game of successive natural gas exports to europe upstream market and wholesale trade within europe downstream market and which explicitly includes infrastructure capacities we compare three possible market scenarios cournot competition in both markets perfect competition in both markets and perfect competition in the downstream with cournot competition in the upstream market eu liberalization we find that cournot competition in both markets is the most accurate representation of today s european natural gas market where suppliers at both stages generate a mark up at the expense of the final customer double marginalization our results yield a diversified supply portfolio with newly emerging lng exporters gaining market shares enforcing competition in the european downstream market would lead to lower prices and higher quantities by avoiding the welfare reducing effects of double marginalization binding infrastructure capacity restrictions strongly influence the results and we identify bottlenecks mainly for intra european trade relations whereas transport capacity in the upstream market is globally sufficient in the cournot scenario

chronic and transient poverty measurement and estimation with evidence from china abstract the paper contributes to the measurement of poverty and vulnerability in three ways first it proposes a new approach to separating poverty into chronic and transient components second it provides corrections for the statistical biases introduced when using a small number of periods to estimate the importance of vulnerability and transient poverty third it applies these tools to the measurement of chronic and transient poverty in china using a rich panel data set that extends over 17 years alternative measurement techniques are found to yield significantly different estimates of the relative importance of chronic and transient poverty the precision of the estimates is also considerably enhanced by simple statistical corrections

russian gas exchange a new indicator of market efficiency and competition or the instrument of monopolist abstract russian government sanctioned the first gas trade at the saint petersburg international mercantile exchange spimex in 2012 as a part of the gas industry national strategy federal antimonopoly service fas proposed a reform aimed to boost competition among producers and to increase consumer welfare the proposal included lifting of price floor regulation for gazprom that supposed to be a vital element of transition from the government price regulation to spimex benchmark for over the counter otc segment structural reform of this scale has never happened in russia furthermore there are only descriptive studies in the existing literature this paper aims to fill this gap by testing market efficiency in spimex based on fama s theory with the well established model we test the consistency of gas futures and spot prices for unbiasedness we imply this methodology because in transition to exchange benchmark it is necessary that price is formed under market forces and is not influenced by players who have market power or dominance to make a reasonable conclusion we supplement the simulation by relevant qualitative analysis of liquidity price differentials between contracts and market concentration in the exchange the goal of the paper is to answer whether the exchange price today can be a benchmark and substitute for the state regulated price combined with qualitative analysis we argue that the scheduled deregulation counterintuitively may improve the dominance of gazprom in the domestic market

carbon taxation and market structure a cge analysis for russia abstract russia is one of the world s major sources of carbon based energy as well as one its most intensive users introducing carbon taxes can lead to a reduction in emissions and encourage investment in energy efficiency we investigate the economic effects of carbon taxes on the russian economy under perfect competition and a cournot oligopoly in output markets the main findings are i substituting carbon taxes for labour taxes can yield a strong double dividend in russia however welfare gains strongly depend on the labour supply elasticity and elasticities of substitution between capital labour and energy ii under the assumption of a cournot oligopoly with homogenous products and symmetric firms in the markets for natural gas petroleum and chemical products metals and minerals welfare costs of the environmental tax reform can be higher than under perfect competition this is because introducing carbon taxes leads to a reduction in already sub optimal output thereby exacerbating pre existing distortions arising from imperfect competition iii furthermore increases in energy costs can result in higher mark ups in some markets because of less competition resulting from firms exit

dynamic poverty decomposition analysis an application to the philippines summary in this paper we propose a new method of poverty decomposition our method remedies the shortcomings of existing methods and has some desirable properties such as time reversion consistency and subperiod additivity our decomposition integrates the existing methods of growth redistribution decomposition and sector based decomposition because it allows us to decompose the change in poverty into growth and redistribution components for each group e g regions or sectors in the economy our decomposition works well in cases where only partial data are available for some periods it is also flexible and can be extended to have the following six components population shift within region redistribution between region redistribution nominal growth inflation and methodological change components the empirical application of the six way decomposition to the philippines for the period 1985 2009 shows that important policies for poverty reduction may differ across regions for example the autonomous region in muslim mindanao would need growth enhancing policies whereas eastern visayas would need policies to improve the income distribution our decomposition method has a wide applicability and may complement the poverty profile approach

unemployment dynamics among migrants and natives unemployment rates are often higher for migrants than for natives this could result from longer periods of unemployment as well as from shorter periods of employment this paper jointly examines male native migrant differences in the duration of unemployment and subsequent employment using german panel data and bivariate discrete time hazard rate models compared to natives with the same observable and unobservable characteristics unemployed migrants do not flnd less stable positions but they need more time to flnd these jobs the probability of leaving unemployment also varies strongly between ethnicities while flrst and second generation turks are identifled as the major problem group therefore policy should concentrate on the job flnding process of turkish migrants to flght their disadvantages on the labor market

unemployment insurance in europe unemployment duration and subsequent employment stability the disincentive effect of unemployment insurance on unemployment duration has been the focus of the empirical literature the potential effect of unemployment insurance on post unemployment outcomes which may be regarded as beneficial by improving job matching has attracted much less attention this paper provides evidence on the effect of unemployment benefits on unemployment and employment duration in europe using individual data from the european community household panel for eight countries country specific estimates based on multivariate discrete time duration models controlling for observed and unobserved individual heterogeneity suggest that although receiving benefits has an adverse effect in the sense of increasing unemployment duration there is also a positive effect by increasing subsequent employment duration this beneficial effect of unemployment insurance on employment stability is pronounced in countries with relatively generous benefit systems and for recipients who have remained unemployed for at least six months these findings are in line with theories suggesting a matching effect of unemployment insurance

assessing deprivation with an ordinal variable theory and application to sanitation deprivation in bangladesh the challenges associated with poverty measurement with a cardinal variable have received due attention during the last four decades but there is a dearth of literature studying how to meaningfully assess poverty with an ordinal variable this paper first proposes a class of simple intuitive and policy relevant poverty measures for ordinal variables these measures are sensitive to depth of deprivations unlike the headcount ratio moreover under appropriate restrictions the measures ensure that priority is given to the poorest among the poor while targeting monitoring and evaluating poverty alleviation programs to assess the robustness of poverty comparisons to alternative choices of parameters various stochastic dominance tests are developed some of which are themselves novel contributions to the stochastic dominance literature the empirical illustration documenting changes in sanitation deprivation in bangladesh showcases the measures ability to identify instances in which overall sanitation deprivation improved while leaving the poorest behind

re employment probabilities of unemployment benefit recipients this article studies transitions out of unemployment for benefit recipients in spain we analyse the duration of unemployment distinguishing between spells that end in recall workers returning to the previous employer and spells that end in exit to a new job this distinction allows us to find that the recall hazard rate increases around the time of exhaustion of benefits however this happens only for workers receiving unemployment insurance ui because we are unable to replicate this result for workers receiving unemployment assistance ua we believe the finding lends support to the hypothesis that in spain firms and workers make a strategic use of ui

short and long term unemployment abstract this paper estimates a semi parametric hazard model for unemployment duration that accommodates time varying covariate effects for both baseline hazard functions selected some dramatic changes are detected in the regression coefficients the results are robust to the incorporation of unobserved heterogeneity

today or not today deregulating the russian gas sector abstract although russia is the world s biggest producer of natural gas its ability to maintain timely and reliable supply to meet the growing global demand has come under question in recent months the gas war with ukraine notwithstanding concern has been raised by a number of observers that underinvestment in the gas sector will lead to a systemic failure of the state monopolist oao gazprom to increase or even maintain current levels of production yet with a quarter of european gas coming from russia and with increasing presence of gazprom in european downstream operations such as germany hungary and other cis states as well as seemingly closer ties with algeria another major supplier of gas to europe there has been a strong reaction from europe s policy makers to decrease dependence on russian gas deregulating and liberalising the gas sector would see the lifting of restrictions to foreign or independent investors wishing to gain access to russian reserves as well as the unhindered access to the pipeline infrastructure and export markets it would also signal the unbundling of gazprom and an end to the artificially low price of gas to the domestic consumer this paper discusses whether deregulation is the optimal way to raise capital attract investment and increase supply security for russia s western neighbours in doing so the paper identifies the objectives of the eu as the importer whilst trying to align them with the objectives of the russian federation as the exporter in the current political context

search models and applied labor economics individual effects in a nonlinear model explicit treatment of heterogeneity in the empirical job search model this paper extends the empirical version of a job search model to permit heterogeneity in the location of wage offer distributions population variance in wage offers is decomposed into variance due to heterogeneity and variance facing each individual heterogeneity is found to be an important source of offer variance in the population the amount of pure wage offer dispersion facing individuals is found to contribute little to population variance

unemployment insurance and unemployment spells this paper tests the effects of the level and length of unemployment insurance benefits on unemployment durations the paper particularly studies individual behavior during the weeks just prior to when benefits lapse higher unemployment insurance benefits are found to have a strong negative effect on the probability of leaving unemployment however the probability of leaving unemployment rises dramatically just prior to when benefits lapse individual data are used with accurate information of spell durations and the level and length of benefits the semiparametric estimation techniques used in the paper yield more plausible estimates than conventional approaches and provide useful diagnostics copyright 1990 by the econometric society

russian natural gas exports will russian gas price reforms improve the european security of supply in this paper we use both theoretical and numerical tools to study potential effects on russian gas exports from different russian domestic gas prices and production capacities in 2015 we also investigate whether a fully competitive european gas market may provide incentives for gazprom the dominant russian gas company to change its export behaviour our main findings suggest that both increased domestic gas prices and sufficient production capacities are vital to maintain gazprom s market share in europe over the next decade in fact russia may struggle to carry out its current long term export commitments if domestic prices are sufficiently low at the same time if russian prices approach european net back levels gazprom may reduce exports in favour of a relatively more profitable domestic market

poverty dominant program reforms the role of targeting and allocation rules we propose simple graphical methods to identify poverty reducing marginal reforms of transfer programs the methods are based on program dominance curves that display cumulative program benefits weighted by powers of poverty gaps these curves can be decomposed simply as sums of targeting dominance curves and allocation dominance ones and can serve to verify whether the assessment of marginal program reforms is sensitive to the choice of poverty lines and poverty measures as well as to differences across programs in revenue sources and incentive effects

equity regarding poverty measures differences in needs and the role of equivalence scales the paper investigates the definition of equity regarding poverty measures when there are different household types in the population it demonstrates the implications of a between type regressive transfer principle for poverty measures for the choice of poverty lines and for the measurement of living standard the role of equivalence scales which are popular in empirical work on poverty measurement is clarified ce memoire examine la definition de mesures de pauvrete fondees sur l equite quand existent differents types de menages dans la population on montre les implications d un principe de transfert regressif entre types de menages pour les mesures de pauvrete pour la definition des seuils de pauvrete et pour la mesure du niveau de vie on clarifie le role des echelles d equivalence qui sont d un usage generalise dans les travaux sur la mesure de la pauvrete

on the impacts of carbon tax and technological progress on china using a dynamic national computable general equilibrium model we investigate the impact of carbon tax and energy efficiency improvement on the economy and environment of china the chinese social

unemployment duration and individual heterogeneity a regional study this paper investigates the impact of individual heterogeneity and regional influences on unemployment duration utilizing cross section microeconomic data drawn from a representative random survey of individual job seekers for the english county of kent these individual level data are unique in that they provide information concerning the personal characteristics of job seekers alongside direct observations of both their reservation wages and job search behaviour such data are rare and to the authors knowledge have never before been utilized in a regional context thus the paper contributes to the empirical literature by analysing the extent to which individual heterogeneity and intra regional variation in labour market opportunities impact upon the observed distribution of unemployment duration s in particular the paper analyses the extent to which the duration of unemployment is determined by individual choice this is an important issue for the formation and evaluation of policy these result

aggregate poverty measures the way poverty is measured is important for an understanding of what has happened to poverty as well as for anti poverty policy evaluation sen s 1976 pathfinding work has motivated many researchers to focus on the way poverty should be measured a poverty measure argued by sen should satisfy certain properties or axioms and the desirability of a poverty measure should be evaluated by these axioms during the last two decades many researchers have adopted the axiomatic approach pioneered by sen to propose additional axioms and develop alternative poverty measures the objective of this survey is to provide a clarification on the extensive literature of aggregate poverty measures in this survey we first examine the desirability of each axiom the properties of each poverty measure and the interrelationships among axioms the desirability of an axiom cannot be evaluated in isolation and some combination of axioms may make it impossible to devise a satisfactory poverty measure some axioms can be implied by other axioms combined and so are not independent some others are ad hoc and are disqualified as axioms for poverty measurement based on the interactions among axioms we identify the core axioms which together have a strong implication on the functional form of a poverty measure we then review poverty measures that have appeared in the literature evaluating the interrelationships among different measures and examining the properties of each measure the axioms each measure satisfies violates are also summarized in a tabular form several good poverty measures which have not been documented by previous surveys are also included

distributional effects of higher natural gas prices in russia abstract this paper analyses the distributional effects of eliminating the implicit subsidy on natural gas consumption in russia the analysis is based on a computable general equilibrium model with multiple households and a detailed power generation sector it is found that using additional government revenues from higher domestic gas prices to increase the income of low and middle income households could improve the welfare of these households and alleviate income inequality in russia e g total private consumption of the poorest decile could increase by 3 nevertheless the most efficient revenue recycling policy would be to invest in the energy efficiency of buildings which have the largest energy savings potential in russia in the long term investing in the energy efficiency of buildings could reduce greenhouse gas emissions by 240 million tonnes of co2 equivalent per year and increase the welfare of low and middle income households e g total private consumption of the poorest decile increases by 1 it is also found that increasing the regulated domestic gas price could lead to windfall profits for non gazprom producers hence to increase government revenues the gas price reform could be supplemented by an increase in the capital income tax in the gas sector

household unemployment and the labour supply of married women a recent reform to the uk unemployment insurance ui system has reduced the duration of entitlement from 12 to six months the ui and welfare systems interact in the uk in such a way that exhaustion of ut for married individuals has potentially large disincentive effects on the labour supply of spouses a model of labour supply is estimated for married women allowing for endogenous unemployment durations of husbands and wives we distinguish between transfer programme induced incentive effects correlation between labour supply and wages within couples complementarity between the leisure times of spouses and a discouraged worker effect

job separation in a non stationary search model a structural estimation to evaluate alternative unemployment insurance systems this paper considers a job search model in which the environment is not constant throughout the unemployment spell and where jobs do not last for ever in this situation reservation wages can be lower than they would be in a model without consideration of such separations but they can initially be higher precisely because of the non constant environment the model is estimated structurally by using spanish data for the period 1985 1996 the main finding is that after controlling for unobserved heterogeneity the unemployment hazard rate is almost flat during the first six months however after this duration the highly decreasing job offer arrival rate comes to be the only significant factor given that acceptance probabilities become equal to one the estimated parameters are used to evaluate different unemployment insurance designs we conclude that a non monotonic pattern in unemployment benefits joint with a tax paid by workers and based on unemployment duration makes this duration 13 2 lower than it currently is in spain copyright 2006 john wiley sons ltd

endogenous unemployment insurance in a monopoly union model when job search matters abstract the aim of the paper is to derive an optimal unemployment insurance policy for a utilitarian trade union when job search matters it is shown that the well known result from the theory of insurance concerning the optimal risk sharing between risk averse agents changes essentially if the search behavior is allowed to affect the performance of the labor market we assume that labor market mismatch decreases with search effort which in turn decreases with the benefit the resulting equilibrium benefit is shown to be a decreasing function of the trade union s share of the costs of the insurance fund the model is also extended to the case where the benefit is made conditional on monitored search effort

natural gas price effects in china based on the cge model abstract natural gas is a clean energy source with many benefits and its proportion in the energy consumption structure in china has been gradually increasing over the recent years since the price of natural gas in china has been controlled and maintained at a relatively low level by the government reforming the natural gas industry in china has been the matter of much attention in light of its macroeconomic effects on the overall economy using the computable general equilibrium model and the 2012 social accounting matrix the results show increases in natural gas prices lead to an increase in the consumer price index cpi and lead to reductions in gdp the chemical industry sector is strongly influenced by a natural gas price increase furthermore chemical fertilizer manufacturing industry and chemical products manufacturing have very significant effects in china therefore the government may gradually establish and improve the management of natural gas price to avoid negative effects and implement a differential price as the industries exhibit different levels of resistance in response to natural gas price changes