distributed energy infrastructure paradigm community microgrids in a new institutional economics context abstract this paper provides a theoretical framework based on new institutional economics nie concepts to guide the development of community microgrids given limited application thus far of such energy systems this paper also draws on empirical studies and experiences from the planning and development of other public community infrastructure and utility services in the development of this framework it links an efficient ownership and governance structure with transactional characteristics such as asset idiosyncrasy frequency and uncertainty defined in section 3 1 the key role of the customers and the microgrid service provider and more specifically their bilateral monopoly relationship and its effects on the choice of institutional structure is highlighted the paper examines the optimum conditions for public private or hybrid financial ownership and for unified or network governance through long term contracting this allows ex ante investment uncertainty and ex post appropriation risks to be efficiently managed the analysis suggests that long term contract completeness future demand for electricity and level of uncertainty are the determining factors in the selection of institutional structure this has significant real world implications for the communities seeking to achieve electricity self sufficiency and environmental benefits through community microgrids service providers and other private or public actors

growth and unemployment this paper analyses the effects of growth on long run unemployment using a search model of equilibrium unemployment where growth arises explicitly from the introduction of new technologies that require labour reallocation for their implementation the analysis uncovers and compares between two competing effects of growth on unemployment the first is a capitalisation effect whereby an increase in growth raises the capitalised returns from creating jobs and consequently reduces the equilibrium rate of unemployment the second is a creative destruction effect whereby an increase in growth reduces the duration of a job match thereby raising the equilibrium level of unemployment both directly by raising the job separation rate and indirectly by discouraging the creation of job vacancies this paper asks the question of how the rate of economic growth affects unemployment in the long run the main consideration that leads us to think that this is an interesting question has to do with the re allocative aspect of growth in the long run faster economic growth must come from a faster increase in knowledge to the extent that the advancement of knowledge is embodied in industrial innovations it is likely to raise the job destruction rate through automation skill obsolescence and the bankruptcy associated with the process of creative destruction in short increased growth is likely to produce an increased rate of job turnover and the search theories of lucas and prescott 1974 and pissarides 1990 imply that an increased rate of job turnover will result in a higher natural rate of unemployment this conclusion is also consistent with the empirical results of davis and haltiwanger 1990 which show that periods of high unemployment tend to be periods of high job turnover at the establishment level it suggests the possibility of a positive longrun tradeoff between growth and unemployment at least over some range there has been relatively little attention paid to our question in the literature on longrun determinants of unemployment for example the recent empirical examination by layard nickell and jackman 1991 of unemployment rates among oecd countries did not even consider the rate of economic growth as a possible explanatory variable this is consistent with the seminal theoretical work of phelps 1968 which implies that the natural rate of unemployment is independent of the rate of productivity growth the only

control rights in complex partnerships this paper develops a theory of the allocation of authority between two players who are in a complex partnership that is a partnership which produces impure public goods we show that the optimal allocation depends on technological factors the parties valuations of the goods produced and the degree of impurity of these goods when the degree of impurity is large control rights should be given to the main investor irrespective of preference considerations there are some situations in which this allocation is optimal even if the degree of impurity is very low as long as one party s investment is more important than the other party s if the parties investments are of similar importance and the degree of impurity is large shared authority is optimal with a greater share going to the low valuation party if the importance of the parties investments is similar but the degree of impurity is neither large nor small the low valuation party should receive sole authority we analyze an extension in which side payments are infeasible we check for robustness of our results in several dimensions such as allowing for multiple parties or for joint authority and apply our results to interpret a number of complex partnerships including those involving schools and child custody jel d02 o23 h41 l31

cost versus control understanding ownership through outsourcing in hospitals for profit hospitals in california contract out services much more intensely than either private nonprofit or public hospitals to explain why we build a model in which the outsourcing decision is a trade off between cost and control since nonprofit firms are more restricted in how they consume net revenues they experience more rapidly diminishing value of a dollar saved and they are less attracted to a low cost but low control outsourcing opportunity than a for profit firm is this difference is exaggerated in services where the benefits of controlling the details of production are particularly important but minimized when a fixed cost shock raises the marginal value of a dollar of cost savings we test these predictions in a panel of california hospitals finding evidence for each and that the set of services that private non profits are particularly interested in controlling physician intensive services is very different from those than public hospitals are particularly interested in labor intensive services these results suggest that a model of public or nonprofit make or buy decisions should be more than a simple relabeling of a model derived in the for profit context

urbanization fertility and child education in sub saharan africa abstract using individual level survey data we show that the urbanization process in today s sub saharan africa is associated with the fertility transition and increased investment in child education this is consistent with the experience of the western economies during their transition from a post malthusian towards a modern growth regime the use of individual level data allows us to analyze structural rural urban differences holding constant age and regional characteristics which are potentially confounding factors in regional and country level regressions

using satellite imagery to create tax maps and enhance local revenue collection although taxes on land and property have many desirable attributes the challenge of ensuring completeness of tax rolls and currency of valuations preclude their effective use to support urbanizati

bureaucrats or politicians part ii multiple policy tasks abstract policies are typically chosen by politicians and bureaucrats this paper investigates first the normative criteria with which to allocate policy tasks to elected policymakers politicians or non elected bureaucrats politicians are preferable if there is uncertainty about social preferences and flexibility is valuable or if policy complementarities and compensation of losers is important bureaucrats are preferable if time inconsistency and short termism is an issue or if vested interests have large stakes in the policy outcome we then compare this normative benchmark with the case in which politicians choose when to delegate and show that the two generally differ

the political economy of mass privatisation and imperfect taxation winners and loosers this article investigates the connection between the apparently uncorrelated issues of tax evasion and privatisation in a political economy framework we first consider how the political process given a country s level of development and income distribution will affect the efficiency of the tax system we then discuss the impact of the efficiency of the taxation system on the outcomes of privatisation we consider under which condition privatisation will proceed and who will be the political supporters as well as the main winners of the privatisation process moreover we investigate the impact of different forms of corruption both on the initial public support for privatisation as well as on its long term political sustainability

the proper scope of government theory and an application to prisons when should a government provide a service in house and when should it contract out provision we develop a model in which the provider can invest in improving the quality of service or reducing cost if contracts are incomplete the private provider has a stronger incentive to engage in both quality improvement and cost reduction than a government employee has however the private contractor s incentive to engage in cost reduction is typically too strong because he ignores the adverse effect on noncontractible quality the model is applied to understanding the costs and benefits of prison privatization

gratitude conscience and reciprocity models of supplier motivation when quality is non contractible abstract standard game theoretic models that apply principal agent problems to analyse buyer supplier relations have postulated that in a single period game the agent will not choose non contractible quality however evidence exists that suppliers or service providers choose costly quality in non contractible dimensions even in absence of reputation concern if they are offered a premium such actions violate the axiom of individual rationality and are not subgame perfect in standard game theory wherein only material payoffs are considered this paper builds three models of supplier behaviour in a single period stackelberg like buyer supplier game by using the framework of psychological game theory and explains supplier motivations to choose quality on non contractible dimensions in absence of any reputation effect if the buyer offers a price higher than the market price the supplier may be motivated to choose non contractible quality due to a sense of gratitude or because of his conscience or in order to reciprocate kindness the results show that maximum possible quality is chosen by the supplier only in the presence of a sufficiently strong sense of gratitude or a sufficiently strong conscience however the buyer is better off with a fair supplier who is motivated to reciprocate than a supplier having a very poor sense of gratitude or one having a weak conscience because the buyer can choose an optimal premium above market price to ensure that a fair and reciprocal supplier chooses an optimal quality

reservation wages and the cost of unemployment this paper studies direct evidence on reservation wages reported in great britain in 1982 to assess 1 whether such asking prices are high and 2 whether variations in these reservation wages are related to differences in measures of the subjective and objective costs of unemployment a majority overall and for various subgroups reports reservation wages no higher than own past wages adjusted for earnings growth but there is nonetheless considerable dispersion in the ratio of reservation to past wages reservation wages are somewhat related to measures of the differential cost of unemployment most clearly for men although the independent role of benefits is often imprecisely measured however exactly which of these costs matter differs significantly according to whether the separation from last employment was voluntary or involuntary copyright 1989 by the london school of economics and political science

technological change and retirement decisions of older workers according to human capital theory technological change will influence the retirement decisions of older workers in two ways first workers in industries with high rates of technological change will retire later if there is a net positive correlation between technological change and on the job training second an unexpected change in the rate of technological change will induce older workers to retire sooner because the required amount of retraining will be an unattractive investment we matched industry data on productivity growth and occupational data on required training with data from the national longitudinal surveys of older men to test these hypotheses our results support both hypotheses

reemployment probabilities and returns to matching the assumption of constant returns in the matching function embodied in most bilateral search models is crucial to ensure the uniqueness of the unemployment rate along a steady state growth path this article explores the empirical viability of this assumption by estimating individual reemployment probabilities on a sample of unemployment entrants i apply hazard models to survey data on both completed and uncompleted unemployment durations the hypothesis of constant returns to matching is not rejected on the basis of the evidence that the job finding hazard depends only on local labor market tightness and is independent of its size

the economic effects of unemployment insurance in canada an empirical analysis of ui disentitlement this article provides an overview of the canadian unemployment insurance ui program including its evolution salient features relative size and knowledge about its labor market impacts understanding of these impacts is limited and we conclude that an event study approach is a promising way to further this knowledge we examine the effects of the 1976 ui disentitlement of the elderly on their labor force behavior and find evidence of significant adverse selection effects interactions with the public pension system suggest that poverty among the elderly could be best addressed through changes in programs other than ui

economic development and the family structure from the pater familias to the nuclear family we provide a theory that is able to account for the observed comovement between the shift in intergenerational living arrangements from coresidence to non coresidence and economic development our theory is consistent with the diminution in the status of the elderly documented by some sociologists the results from our analysis show that when technical progress is fast enough the economy experiences a shift from stagnation to growth there is a transition from coresidence to non coresidence and the social status of the elderly tends to deteriorate

market and public provision in the presence of human capital externalities for many goods and services such as health education legal services police protection the cost incurred by an individual supplier for providing quality is affected by the human capital of her colleagues the paper shows that this human capital externality is crucial to determine whether such goods and services should be privately or publicly provided public and private provisions give individuals different incentives to acquire human capital and the paper shows that either may be socially preferable depending on the nature of the human capital externality private provision of the final goods and services gives stronger incentives to human capital acquisition and may therefore be socially preferable if own human capital and one s colleagues human capital are substitutes and if suppliers with high human capital benefit more than suppliers with low human capital from their colleagues human capital but not excessively so

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

do benefit cuts boost job finding swedish evidence from the 1990s in june 1995 the swedish parliament decided to cut the replacement rate in unemployment insurance from 80 percent to 75 percent a change that took effect on january 1 1996 this paper examines h

an equilibrium model of search unemployment this paper develops a simple general equilibrium model with sequential search in which a nondegenerate wage offer distribution is endogenously determined we use this model to analyze the comparati

competing for the island lifeline european law state aid and regional public services bennett p 2006 competing for the island lifeline european law state aid and regional public services regional studies 40 953 966 ensuring the freedom to provide services in europe often means that state subsidies for loss making but essential services are subject to competitive tendering for the past three decades lifeline ferry services to the islands of western scotland have been operated by the state owned company caledonian macbrayne state owned companies are not exempt from european union state aid and procurement rules however and the scottish executive is about to issue an invitation to tender for these services this paper examines the aims of european union rules on state aid procurement and services of general economic interest and their application to ferry services in the spatial periphery of europe the advantages and disadvantages of competitive tendering are then considered focusing on the consequences for efficiency labour quality and investment and the likelihood o

unemployment duration unemployment benefits and labor market programs in sweden abstract standard search theory as well as some empirical evidence suggest that an unemployed individual s probability of entering employment increases as he approaches the time when unemployment benefits are due to expire this pattern may not carry over to a country like sweden where labor market programs are targeted at the long term unemployed at risk of benefit exhaustion the paper examines transitions out of unemployment using data on unemployed individuals in sweden a semi parametric competing risks model for transitions to employment labor market programs and non participation is estimated there is some evidence that the exit rate from unemployment to employment increases as benefit exhaustion is approached

the dynamic effects of aggregate demand and supply disturbances we interpret fluctuations in gnp and unemployment as due to two types of disturbances disturbances that have a permanent effect on output and disturbances that do not we interpret the first as supply disturbances the second as demand disturbances demand disturbances have a hump shaped mirror image effect on output and unemployment the effect of supply disturbances on output increases steadily over time peaking after two years and reaching a plateau after five years

effects of public ownership over firms size and overstaffing problems a model is presented to analyse the impact ofownership over the problem of excess of employmentgenerally found in public firms a government has toprovide a service or build an infrastructure underuncertainty about the valuation of the project byconsumers three possible ownership schemes areconsidered for the provision of this service astate owned firm a private firm with a completecontingent contract or a private firm with anincomplete contract in all three schemes the agentthat chooses the size of the project is always thegovernment without any asymmetries of information even though multiple solutions are feasible and nodefinitive conclusion is found to be valid for allstates of nature an evaluation of outcomes shows thata private firm tends to underprovide infrastructure orservices more often while under public ownership thefirm is typically larger if incomplete contracting isadded to the private firm case the model exhibitssolutions in which outcomes could be socially worsethan those obtained by a public firm only changes inthe voting behaviour of workers and contracting costsare required in this model to derive these results thus the paper provides an example that ownershipper se may have an effect on the size andefficiency of firms even under symmetric informationconditions an extreme that has been generally deniedin the literature on public firms and privatisation

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

a theory of the stakeholder corporation there is a widely held view within the general public that large corporations should act in the interests of a broader group of agents than just their shareholders the stake holder view this paper presents a framework where this idea can be justified the point of departure is the observation that a large firm typically faces endogenous risks that may have a significant impact on the workers it employs and the consumers it serves these risks generate externalities on these stakeholders which are not inter nalized by shareholders as a result in the competitive equilibrium there is under investment in the prevention of these risks we suggest that this under investment problem can be alleviated if firms are instructed to maximize the total welfare of their stakeholders rather than shareholder value alone stakeholder equilibrium the stake holder equilibrium can be implemented by introducing new property rights employee rights and consumer rights and instructing managers to maximize the total value of the firm the value of these rights plus shareholder value if there is only one firm the stakeholder equilibrium is pareto optimal however this is not true with more than one firm and or heterogeneous agents which illustrates some of the limits of the stake holder model

signaling and the design of delegated management contracts for public utilities this article analyzes the shape of contracts between local governments and the contractors they hire to run public facilities on their behalf governments are privately informed about the quality of the facility while risk neutral contractors undertake a non verifiable operating eort the design of the contract signals the quality of the facility in such a way that the better this quality the greater the share of operating risk kept by the government this feature reduces the agent s marginal incentives creating a trade o between signaling and moral hazard we provide extensions of our framework in several directions allowing for risk aversion on the agent s side double moral hazard and political delegation the model is supported by some stylized facts from the water industry

eefects of reintegration activities on the dutch labour market regarding levels of education in the netherlands during the early nineteen nineties social security administration offices and labour exchange offices decided to co operate goal of this cooperation is to support the reintegration of unemployed people into the labour market and to shorten the individual spells of unemployment as a result of the cooperation information is available about levels of education of the unemployed this article primarely focuses on the effects of reintegration activities on the duration of unemployment for different levels of education results of the analysis are compared with the human capital theory also the question is discussed whether within the framework of the cooperation persons with a higher level of education have shorter spells of unemployment finally there is an analysis of the effects of activities undertaken by the unemployed themselves to find a job people with a university degree have significant longer spells of unemployment the reintegration activities of the social security administr

does competition among public schools benefit students and taxpayers tiebout choice among districts is the most powerful market force in american public education naive estimates of its effects are biased by endogenous district formation i derive instruments from the natural boundaries in a metropolitan area my results suggest that metropolitan areas with greater tiebout choice have more productive public schools and less private schooling little of the effect of tiebout choice works through its effect on household sorting this finding may be explained by another finding students are equally segregated by school in metropolitan areas with greater and lesser degrees of tiebout choice among districts

public service motivation as an argument for government provision a public service motivation psm inclines employees to provide effort out of concern for the impact of that effort on a valued social service though deemed to be important in the literature on public administration this motivation has not been formally considered by economists when a psm exists this paper establishes conditions under which government bureaucracy can better obtain psm motivated effort from employees than a standard profit maximizing firm the model also provides an efficiency rationale for low powered incentives in both bureaucracies and other organizations producing social services 2000 elsevier science s a all rights reserved

does privatisation of vocational rehabilitation improve labour market opportunities evidence from a field experiment in sweden this paper analyses if privatisation of vocational rehabilitation can improve labour market opportunities for individuals on long term sickness absence we use a field experiment performed by the p

vintage human capital growth and the diffusion of new technology we develop a model of vintage human capital in which each technology requires vintage specific skills we examine the properties of a stationary equilibrium for our economy the stationary equilibrium is characterized by an endogenous distribution of skilled workers across vintages the distribution is shown to be single peaked under general conditions there is a lag between the appearance of a technology and its peak usage a phenomenon known as diffusion an increase in the rate of exogenous technological change shifts the distribution of human capital to more recent vintages thereby increasing the diffusion rate

the effects of unemployment compensation in general equilibrium with search unemployment it is shown that when the effects of an increase in unemployment subsidies are studied in a general equilibrium framework unemployment increases far less than in a partial partial model in fact the result may very well be a decrease in unemployment if the general equilibrium forces are strong enough in the model used in this paper an increase in unemployment compensation unambiguously decreases the rate of unemployment copyright 1990 by the editors of the scandinavian journal of economics

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

transaction costs and the property rights approach to the theory of the firm the standard property rights approach is focused on ex ante investment incentives while there are no transaction costs that might restrain ex post negotiations we explore the implications of such transaction costs prominent conclusions of the property rights theory may be overturned a party may have stronger investment incentives when a non investing party is the owner and joint ownership can be the uniquely optimal ownership structure intuitively an ownership structure that is unattractive in the standard model may now be desirable because it implies large gains from trade such that the parties are more inclined to incur the transaction costs

macroeconomic adjustment and poverty in selected industrial countries the business cycle affects the incidence of poverty as shown by evidence from australia sweden the united kingdom and the united states many of the poor in these countries are outside the labor markets and transfers are a major source of income for many others but the unemployment and wage reductions that occur in recession increase the incidence of poverty major causes of poverty are unemployment in australia and the united kingdom and low wages in the united states similar cyclical effects are observed in sweden but a vast transfer program virtually eliminates poverty there are several policy options for combating poverty caused by recession a combination of unemployment insurance for a limited period followed by a job guarantee is the most effective policy toward unemployment whereas poverty caused by low earnings can be remedied by redistribution through the tax system

a critical assessment of the incomplete contracts theory for private participation in public services the case of the water sector in ghana this paper provides a critical analysis of the recent developments in the incomplete contracts theory and its conclusions for privatisation of public services drawing on a case study of management contract for urban water services in ghana and highlighting the flaws in the theory the article argues that contractual incompleteness does not provide a uniform guidance on efficient forms of ownership we argue that methodological individualism utilised in the theory is particularly ineffective for its application to public services where direct or indirect contractual role of the state cannot be eliminated the sterility of the theory with respect to political institutional and distributional context of public service delivery is identified as an important weakness copyright oxford university press

unemployment duration and competing risks evidence from sweden the determinants of unemployment duration are studied in the presence of multiple exits out of unemployment the results indicate that state aggregation may be a severe problem in empirical analysis of a labor market such as the one in sweden estimating a joint model for all transitions out of unemployment leads to biased estimates since different transitions are governed by different mechanisms the results also indicate positive duration dependence in both transitions to regular employment and transitions out of the labor force but no duration dependence in transitions to public labor market programs i introduction during the last decade we have witnessed a rapidly expanding literature on the determinants of unemployment duration the main motivation for this development is that a large share of the increasing unemployment rates in most western economies since the mid 1970s may be attributed to increased unemployment duration see e g the survey by lofgren and engstrom 1988 most empirical studies formulate an estimating equation for the determinants of the outflow from unemployment in terms of the hazard function which describes the conditional probability of leaving unemployment these studies are typically based on an explicit or implicit assumption that the only relevant transition out of unemployment is reemployment in this paper it is argued that such an assumption which amounts to assuming that all transitions from unemployment are governed by the same mechanism may lead to state aggregation bias we have no a priori reason to believe that e g increased education has the same effect on transitions from unemployment to employment as on transitions from

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

unemployment insurance and involuntary unemployment the case of adverse selection abstract this paper studies the private and public provision of unemployment insurance in a model where equilibrium unemployment results from the use of the wage as a worker selection device it is shown that private provision will not occur essentially because those workers most desired by a firm place least value on such coverage respecting the same informational constraints public provision necessarily gives rise to some distortions in participation decisions but nonetheless is welfare improving in the aggregate

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

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

why not hang them all the virtues of inefficient punishment replacing a criminal punishment with another that both is more severe and has a lower ratio of punishment cost to amount of punishment while reducing the probability of conviction to maintain the same level of deterrence lowers both punishment cost and enforcement cost hence imprisonment is always dominated by execution and both are dominated by fines and other alternatives moden legal systems do not fit that pattern one possible explanation is that the ability enforces to profit by convictions and produce costly rent seeking examples include product liability litigation civil forfeiture and fraudulent prosecution motivated by rewards in eighteenth0 century england the problem was avoided by the use of infficient punishments in the legal system of saga period iceland and the private norms of shasta county california execution while not directly profitable for enforcers facilitates rent seeking through threats leading to out of court settlements

a comparison between economic systems with an application to transition abstract this paper develops a general equilibrium theory of endogenous firm and class formation under non contractibility with heterogeneous individuals a collectivist economy a private ownership economy and a mixed economy are compared on the basis of identical economic fundamentals methodological symmetry each economic system generates specific inefficiencies so that none dominates the others in general the main trade off is between the welfare loss associated with risk taking in the private ownership economy and the informational problems in the collectivist economy we then use this framework to study the political economy of transition between economic systems and provide detailed welfare results

a world of cities the causes and consequences of urbanization in poorer countries historically urban growth required enough development to grow and transport significant agricultural surpluses or a government effective enough to build an empire but there has been an explosion of poor mega cities over the last 30 years a simple urban model illustrates that in closed economies agricultural prosperity leads to more urbanization but that in an open economy urbanization increases with agricultural desperation the challenge of developing world mega cities is that poverty and weak governance reduce the ability to address the negative externalities that come with density this paper models the connection between urban size and institutional failure and shows that urban anonymity causes institutions to break down for large cities with weak governments draconian policies may be the only way to curb negative externalities suggesting a painful trade off between dictatorship and disorder a simple model suggests that private provision of infrastructure to reduce negative externalities is less costly when city populations are low or institutions are strong but that public provision can cost less in bigger cities

government control of the media abstract we present a formal model of government control of the media to illuminate variation in media freedom across countries and over time media bias is greater and state ownership of the media more likely when the government has a particular interest in mobilizing citizens to take actions that further some political objective but are not necessarily in citizens individual best interest however the distinction between state and private media is smaller large advertising markets reduce media bias in both state and private media but increase the incentive for the government to nationalize private media media bias in state and private media markets diverge as governments become more democratic whereas media bias in democracies and autocracies converge as positive externalities from mobilization increase

service quality in the electricity industry the role of privatization and managerial behavior abstract this paper analyzes the relationship between privatization and service quality in the electricity industry and tests the hypothesis that managerial behavior is a significant intervening factor the sample includes 31 italian distributors over the period 1998 2004 their quality performance is represented by continuity of supply an aspect of quality that is both contractible and regulated results of the empirical analysis suggest that the transfer of shareholdings to private investors does not lead to quality degradation the results also suggest that managerial dominance translates into a reduction in supply quality this effect is likely to be particularly strong for public sector utilities

a traditional interpretation of macroeconomic fluctuations under the traditional interpretation of macroeconomic fluctuations aggregate demand shocks move output and prices in the same direction while aggregate supply shocks move output and prices in opposite directions this paper examines the joint behavior of u s output unemployment prices wages and nominal money and asks whether it is consistent with this interpretation the answer is a qualified yes

searching for a will o the wisp an empirical study of the nairu in canada abstract this paper demonstrates the uncertainty surrounding estimates of the non accelerating inflation rate of unemployment nairu a reduced form phillips curve is used to develop a generic model of the nairu which nests competing hypotheses about the specific form of the inflation unemployment relationship empirical results for the canadian economy show that the range of prime age male nairu s generated by statistically satisfactory and economically reasonable estimating equations covers almost the entire range of canadian post war prime age male unemployment experience estimates of the nairu depend heavily on the form of the estimating equation the operational definition of key variables and the data sample period

privatization public investment and capital income taxation abstract this paper investigates the optimal line of demarcation between the public and private production sectors as affected by the government s privatization decision only the private sector is subject to taxation in the form of investment taxes in deciding on privatization the government trades off the tax distortion affecting private production against the relative production inefficiency of public production at the optimum the public sector is too large in the sense that the government carries out some production activities where it is inefficient relative to the private sector also public production is relatively capital intensive

reforming the labour market there is nothing new about government attempts to reform the labour market the primary emphasis put upon this aspect of economic policy by the two conservative gov ernments since 1979 however is perhaps unique this emphasis is in part the conse quence of a new stress on supply side economics and of a belief that many imperfections in the labour market are in fact removable by a mixture of measures de signed to alter the attitudes of both institutions and individuals and the environment in which they operate having been shocked into heightened receptiveness by the re cession actors and institutions have been regaled by a variety of measures these in clude trade union and industrial relations legislation the abolition of the fair wages resolution a review of wages councils measures on social security benefits initiatives on training and mobility incentives for individual and community enterprise and schemes to reduce the size of the effective labour force

openness country size and government abstract this paper shows that smaller countries have a larger share of public consumption in gdp and are also more open to trade these empirical observations are consistent with recent theoretical models explaining country formation and break up and may account for the observed positive empirical relationship between trade openness and government size

reservation wage analysis of unemployed youths in australia this paper focuses on the analysis and structural estimation of the reservation wage function from a job search model using modified 2sls and maximum likelihood procedures with selectivity bias adj

cities skills and regional change glaeser e l ponzetto g a m and tobio k cities skills and regional change regional studies one approach to urban areas emphasizes the existence of certain immutable relationships such as zipf s or gibrat s law an alternative view is that urban change reflects individual responses to changing tastes or technologies this paper examines almost 200 years of regional change in the united states and finds that few if any growth relationships remain constant including gibrat s law education does a reasonable job of explaining urban resilience in recent decades but it does not seem to predict county growth a century ago after reviewing this evidence a simple model of regional change is presented and estimated where education increases the level of entrepreneurship human capital spillovers occur at the city level because skilled workers produce more product varieties and thereby increase labour demand it is found that skills are associated with growth in productivity or entrepreneurship not

globalization and the skilled city abstract the location of economic activity both across and within countries has undergone dramatic shifts over the last five decades three key trends stand out first cross country inequality has declined as many developing countries have grown rapidly second economic geography within countries has instead grown more unequal in both the developed and the developing world third within country spatial disparities have grown mainly because of the disproportionate success of skilled cities in this paper i develop a model that jointly explains these patterns as a consequence of deepening international economic integration my model explains the faster population and output growth of skilled cities as well as their tendency to increase their initial skill advantage consistent with the evidence my theory predicts a non monotonic path of urban growth in developed countries the model predicts a future shift in worldwide urban hierarchies as some developing world cities overtake unskilled cities in industrialized countries along global supply chains

motivating wealth constrained actors we examine how owners of productive resources e g public enterprises or financial capital optimally allocate their resources among wealth constrained operators of unknown ability optimal allocations exhibit 1 shared enterprise profit the resource owner always shares the operator s profit 2 dispersed enterprise ownership resources are widely distributed among operators of varying ability 3 limited benefits of competition the owner may not benefit from increased competition for the resource and sometimes 4 diluted incentives for the most capable more capable operators receive smaller shares of the returns they generate implications for privatizations and venture capital arrangements are explored

career incentives of city leaders and urban spatial expansion in china this paper develops a theoretical framework to study the critical role that politics play in shaping the spatial dimension of china s urbanization and the related welfare implications utilizing a

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

the determinants of price and quality in competitively tendered contracts traditional analysis of the impact of competitive tendering on service provision has focused on costs and prices critics have argued that price reductions lead to lower quality we tested this hypothesis using a two equation econometric model with data from a panel of 61 cleaning service contracts the results indicated that while competition reduced price significantly quality of service was maintained or even enhanced the effect of competition turned out to be greater on prices than on quality and the influence of ownership appeared to be negligible on both the evidence does not support the hypothesis that efficiency gains are traded off for lower quality copyright 1995 by royal economic society

a theory of competition among pressure groups for political influence this paper presents a theory of competition among pressure groups for political influence political equilibrium depends on the efficiency of each group in producing pressure the effect of additional pressure on their influence the number of persons in different groups and the deadweight cost of taxes and subsidies an increase in deadweight costs discourages pressure by subsidized groups and encourages pressure by taxpayers this analysis unifies the view that governments correct market failures with the view that they favor the politically powerful both are produced by the competition for political favors

ability biased technological transition wage inequality and economic growth thispaper develops a growthmodel characterizedbyability biasedtechnological transition in which the evolution of technology education attainment and wage inequality is consistent with the observed pattern in the united states and other advanced countries over the past several decades it argues that an increase in the rate of technological progress raises the return to ability and simultaneously generates an increase in wage inequality between and within groups of skilled and unskilled workers an increase in average wages of skilled workers a temporary decline in average wages of unskilled workers an increase in education and a productivity transitory slowdown

on the virtues of privatization when government is benevolent abstract this paper shows that privatizing a public firm can be welfare improving even if the government is a welfare maximizer we consider a setup where the firm s owner a profit maximizing entrepreneur or a benevolent government employs a manager who can invent and implement an innovative production technology wage arrangements are optimal given the verifiable information all parties behave rationally and the information structure is the same in both governance modes nevertheless privatization turns out to be preferable in a wide variety of situations government ownership yields the first best if producing under the old technology is not viable

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

land pressures the evolution of farming systems and development strategies in africa a synthesis abstract evidence assembled in this special issue of food policy shows that rising rural population densities in parts of africa are profoundly affecting farming systems and the region s economies in ways that are underappreciated in current discourse on african development issues this study synthesizes how people markets and governments are responding to rising land pressures in africa drawing on key findings from the various contributions in this special issue the papers herein revisit the issue of boserupian agricultural intensification as an important response to land constraints but they also go further than boserup and her followers to explore broader responses to land constraints including non farm diversification migration and reduced fertility rates agricultural and rural development strategies in the region will need to more fully anticipate the implications of africa s rapidly changing land and demographic situation and the immense challenges that mounting land pressures pose in the context of current evidence of unsustainable agricultural intensification a rapidly rising labor force associated with the region s current demographic conditions and limited nonfarm job creation these challenges are manageable but will require explicit policy actions to address the unique development challenges in densely populated rural areas

technical progress and early retirement this paper claims that technical progress induces early retirement of older workers it presents a model where human capital is technology specific so that technical progress erodes some existing human capital this affects mostly older workers who have a smaller incentive to learn the new technology since their career horizon is shorter hence they tend to work less we find support to this erosion effect in hrs data which shows that retirement and unemployment of older workers are positively related to technical progress in their sectors unlike the effect across sectors the model is ambiguous about the aggregate effect of technical progress on labor supply of older workers while in sectors with many innovations it falls due to the erosion effect in other sectors it increases due to higher wages to examine which effect dominates we run a time series test using us data and find that the rate of average technical progress reduces aggregate labor force participation by the old namely the erosion effect dominates

on measuring the impact of unemployment benefits on the duration of unemployment spell abstract many empirical estimates of the impact of policy changes in unemployment benefit upon the duration of unemployment spell ignore the equilibrium effect i e the demand for labor is assumed to remain unchanged we argue that this assumption is impermissible

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

vintage human capital demographic trends and endogenous growth we study how economic growth is affected by demographics in an overlapping generations model with a realistic survival law individuals optimally chose the dates at which they leave school to enter the labor market and at which they retire endogenous growth arises thanks to the accumulation of generation specific human capital favorable shifts in the survival probabilities always induce longer schooling and later retirement but have an ambiguous effect on growth the relationship between the growth of population and per capita growth is hump shaped increases in longevity can be responsible for a switch from a no growth regime to a sustained growth regime and for a positive relationship between fertility and growth to vanish

job design with conflicting tasks reconsidered a principal wants two sequential tasks to be performed by wealth constrained agents suppose that there is an outcome externality i e a first stage success can make second stage effort more or less effective if the tasks are conflicting the principal s profit maximizing way to induce high efforts is to hire one agent to perform both tasks so that the prospect to get a larger second stage rent after a first stage success motivates the agent to work hard in the first stage in contrast when there is an effort externality i e first stage effort reduces or increases the probability of a second stage success then the principal prefers to hire two agents whenever the tasks are conflicting

contracting out by the public sector theory evidence prospects unlike privatization contracting out or simply contracting does not generally involve the sale of publicly owned assets yet it has been widely used as a mechanism for reform of public sector service provision contracting introduces ex ante competition competition for the market through competitive tendering this article examines both the theory and evidence of contracting by the public sector it considers the theoretical conditions such as contractual incompleteness and the ownership of physical assets which may impede efficient contracting it also reviews the international evidence which suggests that savings in the order of 20 percent are achievable without sacrificing the quality of service provided in the uk savings of between 240m pounds and 280m pounds have been estimated for contracts let at the central government level substantial savings have also been generated by contracting at the local government level copyright 1997 by oxford university press

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

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