uncertainty investment and industry evolution we study the effects of aggregate and idiosyncratic uncertainty on the entry of firms total investment and prices in a competitive industry with irreversible investment we first use standard dynamic programming methods to determine firms entry decisions and we describe the resulting industry equilibrium and its characteristics emphasizing the effects of different sources of uncertainty we then show how the conditional distribution of prices can be used as an alternative means of determining and understanding the behavior of firms and the resulting industry equilibrium finally we use four digit u s manufacturing data to examine some implications of the model

using a policy mix for pollution control a review of economic literature this article provides a review of economic studies analyzing the use of multiple policies a socalled policy mix to cope with single pollution problems to guide and structure the review an analytical framework is developed and applied the framework integrates transaction costs into the analysis of pollution problems and policies to overcome them moreover it understands a pollution externality not only as a market failure but more generally as the failure of private governance structures based on this insight two rationales for using a policy mix are identified first a policy mix may help to correct for multiple reinforcing failures of private governance structures such as pollution externalities and technological spillovers second a policy mix can be employed if the implementation of single first best policies brings about high transaction costs e g when marginal pollution damages are heterogeneous or polluters are unlikely to comply with the policy for each rationale the relevant literature is presented based on the review avenues for future research are identified

job displacement from agriculture unlike manufacturing employers small agricultural employers are generally not required to participate in the unemployment insurance system which leaves many farm workers ineligible for unemployment benefits theory implies that displaced workers who are ineligible for benefits experience shorter jobless spells and a lower reemployment wage with data from the displaced workers survey we show that displaced agricultural workers spend 4 6 fewer weeks unemployed and upon reemployment earn 9 less than displaced manufacturing workers not surprisingly in states where small agricultural employers are required to participate in the unemployment insurance program postdisplacement outcomes for agricultural and manufacturing workers are similar copyright 2010 oxford university press

unknown wage offer distribution and job search duration abstract if job searchers do not know the wage offer distribution they are facing they might take the wage structure in their last firm as a prior doing so reservation wages will be biased which will also bias unemployment duration using data for austrian workers it is shown that workers seem to have good knowledge of expected mean wages but less so for higher moments of the wage offer distribution

the socially optimal recycling rate evidence from japan this paper estimates the average social cost of municipal waste management as a function of the recycling rate social costs include all municipal costs and revenues costs to recycling households to prepare materials estimated with an original method external disposal costs and external recycling benefits results suggest average social costs are minimized with recycling rates well below observed and mandated levels in japan cost minimizing municipalities are estimated to recycle less than the optimal rate these results are robust to changes in the components of social costs indicating that japan and perhaps other developed countries may be setting inefficiently high recycling goals

economic efficiency effects of alternative policies for reducing waste disposal abstract reducing the amount of municipal solid waste that is disposed of has become an important policy goal previous research argued that a virgin material tax offered an efficient method of meeting this goal and it continues to be considered as a policy option today this paper demonstrates however that a virgin material tax is not an efficient method of reducing waste but that an alternative policy a combined disposal tax and reuse subsidy is the combined disposal tax and reuse subsidy is theoretically consistent with unit based household charges for waste disposal but may have advantages in some situations

scrap prices waste and recycling policy this study examines the effect of waste and recycling policy on scrap prices and the importance of scrap price feedbacks as a determinant of policy costs price effects and direct and indirect channels of waste reduction are decomposed for deposit refund advance disposal fee and recycling subsidies scrap price feedbacks decrease the cost of advance disposal fees increase the cost of recycling subsidies and have an ambiguous effect on the cost of deposit refund simulation analysis finds that scrap price feedbacks substantially affect the costs of the policies and alter the ranking of instruments jel q53 q58

investor valuation of the abandonment option abstract we investigate whether investors price the option to abandon a firm at its exit value theory prices this real option as an american put with both a stochastic strike price exit value and a stochastic value of the underlying security the value of cash flows the empirical implications are that firm value increases in exit value after controlling for expected going concern cash flows and that more generalizable assets produce more abandonment option value using discounted earnings forecasts to proxy for expected cash flows and prior literature to categorize asset generalizability we find strong support for the predictions of abandonment option theory

a simple search model with procyclical quits abstract a simple two state model of search is constructed which consistent with empirical studies engenders procyclical quits

evaluating natural resource investments notwithstanding impressive advances in the theory of finance over the past 2 decades practical procedures for capital budgeting have evolved only slowly the standard technique which has remained unchanged in essentials since it was originally proposed see dean 1951 bierman and smidt 1960 derives from a simple adaptation of the fisher 1907 model of valuation under certainty under this technique expected cash flows from an investment project are discounted at a rate deemed appropriate to their risk and the resulting present value is compared with the cost of the project this standard textbook technique reflects modern theoretical developments only insofar as estimates of the discount rate may be obtained from crude application of single period asset pricing theory but see brennan 1973 bogue and roll 1974 turnbull 1977 constantinides 1978 the inadequacy of this approach to capital budgeting is widely acknowledged although not widely discussed its obvious deficiency is its the evaluation of mining and other natural resource projects is made particularly difficult by the high degree of uncertainty attaching to output prices it is shown that the techniques of continuous time arbitrage and stochastic control theory may be used not only to value such projects but also to determine the optimal policies for developing managing and abandoning them the approach may be adapted to a wide variety of contexts outside the natural resource sector where uncertainty about future project revenues is a paramount concern

job search and hyperbolic discounting structural estimation and policy evaluation this paper estimates the structural parameters of a job search model with hyperbolic discounting and endogenous search effort it estimates quantitatively the degree of hyperbolic discounting and assesses its implications for the impact of various policy interventions aimed at reducing unemployment the model is estimated using data on unemployment spells and accepted wages from the national longitudinal survey of youth nlsy the likelihood function explicitly incorporates all the restrictions implied by the optimal dynamic programming solution to the model both observed and unobserved heterogeneity are accounted for the results point to a substantial degree of hyperbolic discounting especially for low and medium wage workers the structural estimates are also used to evaluate alternative policy interventions for the unemployed estimates based on a model with exponential discounting may lead to biased inference on the economic impact of policies jel c6 c73 d90 j64 j68

job search and impatience workers who are more impatient search less intensively and set lower reservation wages the effect of impatience on exit rates from unemployment is therefore unclear if agents have exponential time preferences the reservation wage effect dominates for sufficiently patient individuals so increases in impatience lead to higher exit rates the opposite is true for agents with hyperbolic time preferences using two large longitudinal data sets we find that impatience measures are negatively correlated with search effort and the unemployment exit rate and are orthogonal to reservation wages impatience substantially affects outcomes in the direction predicted by the hyperbolic model

technology choice under several uncertainty sources abstract we analyze a model of irreversible investment with two sources of uncertainty a risk neutral decision maker has the choice between two mutually exclusive projects under input price and output price uncertainty we propose a complete study of the shape of the rational investment region and we prove that it is never optimal to invest when the alternative investments generate the same payoff independently of its size a key feature of this bidimensional degree of uncertainty is thus that the payoff generated by each project is not a sufficient statistic to make a rational investment in this context our analysis provides a new motive for waiting to invest the benefits associated with the dominance of one project over the other as an illustration we apply our methodology to power generation under uncertainty

product market competition and the impact of price uncertainty on investment some evidence from us manufacturing industries the authors estimate the impact of price uncertainty on investment using a panel of u s manufacturing industries pooling the data for all industries uncertainty has no impact on current investment however for industries that have low levels of seller concentration and thus are likely to be highly competitive the estimated impact is negative and statistically significant while for industries with high levels of seller concentration the impact is always small and not significantly different from zero the finding of a negative relationship between investment and price uncertainty in competitive industries is broadly consistent with models that incorporate irreversibility of capital investment copyright 1996 by blackwell publishing ltd

are unemployment and out of the labor force behaviorally distinct labor force states this paper tests the hypothesis that the classifications unemployed and out of the labor force are behaviorally meaningless distinctions this hypothesis is rejected distinct behavioral equations govern transitions from out of the labor force to employment and from unemployment to employment the evidence reported in this paper is broadly consistent with versions of search theory in which unemployment is a state that facilitates the job search process in an appendix we demonstrate that log concavity of the wage offer distribution implies that the exit rate from unemployment is an increasing function of the rate of arrival of job offers

the effects of changes of the job offer arrival rate on the duration of unemployment generally it is acknowledged that changing the job offer arrival rate has two opposite effects on unemployment duration for a basic job search model sufficient conditions on the wage offer distribution have been derived ensuring that one of the effects dominates however these are not satisfied for the popular families of wage offer distributions here i show that the conditions can be weakened at virtually no cost the set of distributions satisfying the new conditions is considerably larger than the set previously established in particular it includes all wage offer distribution families that are popular in structural empirical research

search theoretic models of the labor market a survey we survey the literature on search theoretic models of the labor market we show how this approach addresses many issues including the following why do workers sometimes choose to remain unemployed what determines the lengths of employment and unemployment spells how can there simultaneously exist unemployed workers and unfilled vacancies what determines aggregate unemployment and vacancies how can homogeneous workers earn different wages what are the tradeoffs firms face from different wages how do wages and turnover interact what determines efficient turnover we discuss various modeling choices concerning wage determination and the meeting process including recent models of directed search

the duration of unemployment and unexpected inflation an empirical analysis from chapter 1 the point of departure for the collection of studies presented in the following is the message delivered by american economists during the beginning of the 70 s that a proper understanding of the unemployment problem requires a dynamic view of the labor market in general and unemployment in particular the dynamic view should emphasize the flows into and out of unemployment by analyzing these flows a better understanding should be obtained of i the causes of unemployment and ii the welfare consequences of unemployment the first study presented in chapter 2 aims at giving an empirical picture of the dynamics of unemployment in sweden several decompositions of unemployment which highlight the causes and welfare implications of unemployment are made in chapter 3 one possible explanation to the longer unemployment spells during the seventies is examined namely the unemployment benefits which were extended in different ways for different groups both in 1968 and in 1974 the analytical approach in the chapter is to analyze the surviving rates of the unemployed i e the probability of remaining unemployed from one period quarter to the next in chapter 4 the same analytical approach is applied to the analysis of the cyclical fluctuations of unemployment spells the search theoretic literature has suggested two different explanations of these cyclical fluctuations one has emphasized the importance of inflationary surprises and the other the quantity rationing constraints facing the unemployed the empirical importance of these comparative explanations are analyzed using swedish and u s data a model of the transition rate for the unemployed which captures both mechanisms is specified the study in chapter 5 aims at giving an improved empirical picture of unemployment as a welfare and distributional problem the first issue analyzed is whether unemployment has deleterious effects on individuals subsequent labor market prospects in particular the subsequent wage level the second issue analyzed is whether unemployment tends to hit the relatively low paid in the labor force the issue whether unemployment duration rather than the stock of unemployed should be the guideline for labor market policy is also discussed in the chapter in chapter 6 finally some important topics for future research in this field are dicussed

on the dynamics of recycling and natural resources we study the dynamic impact of recycling through its effect on the production set of the economy and its relationship with natural resources the contribution of renewable and recyclable resources for sustainability is studied although in the short run recycling may alleviate resource scarcity in the long run it is not enough to compensate for the exhaustibility of non renewable resources and the possibility of obtaining non decreasing output paths crucially depends on the extent to which production rests on renewable resources furthermore recycling interacts with natural resource growth surprisingly not always favoring sustainability the production and recycling function is a generalization of the traditional production function providing an integrated view of regular production and recycling and representing the production set of the economy when a recycling technology is available

converting technology to mitigate environmental damage there are many situations where policy makers would like to induce firms to make a major discrete conversion in production technology to help the environment this paper examines how heterogeneity in the operating condition of firms plant and equipment which cannot be observed by policy makers can affect the choice between incentives to encourage conversion to a cleaner technology by relating different conditions of firms plant and equipment to production costs extent of environmental damage and cost of conversion to a cleaner technology we show when a perfectly discriminating incentive to encourage conversion is not feasible in addition we show that firms with plant and equipment in better condition will convert their technology to mitigate their environmental damage and firms with plant and equipment in poorer condition will not this and a series of additional results lead to conditions under which an administratively simple uniform lump sum incentive to switch to cleaner technology is preferable to one based on output these results and conditions extend to cases where there are network externalities in conversion and where there is strategic timing in firms choice of when to convert

hysteresis effects under cir interest rates most decision making research in real options focuses on revenue uncertainty assuming discount rates remain constant however for many decisions revenue or cost streams are relatively static and investment is driven by interest rate uncertainty for example the decision to invest in durable machinery and equipment using interest rate models from cox et al 1985b we generalize the work of ingersoll and ross 1992 in two ways firstly we include real options on perpetuities in addition to zero coupon cash flows secondly we incorporate abandonment or disinvestment as well as investment options and thus model interest rate hysteresis parallel to revenue uncertainty in dixit 1989a under stochastic interest rates economic hysteresis is found to be significant even for small sunk costs

valuing flexibility the case of an integrated gasification combined cycle power plant abstract in this paper we analyze the choice between two technologies for producing electricity in particular the firm has to decide whether and when to invest either in a natural gas combined cycle ngcc power plant or in an integrated gasification combined cycle igcc power plant which may burn either coal or natural gas instead of assuming that fuel prices follow standard geometric brownian motions here they are assumed to show mean reversion specifically to follow an inhomogeneous geometric brownian motion first we consider the opportunity to invest in a ngcc power plant we derive the optimal investment rule as a function of natural gas price and the remaining life of the right to invest in addition the analytical solution for a perpetual option to invest is obtained then we turn to the igcc power plant we analyse the valuation of an operating plant when there are switching costs between modes of operation and the choice of the best operation mode this serves as an input to evaluate the option to invest in this plant finally we derive the value of an opportunity to invest either in a ngcc or igcc power plant i e to choose between an inflexible and a flexible technology respectively depending on the opportunity s time to maturity we derive the pairs of coal and gas prices for which it is optimal to invest in ngcc in igcc or simply not to invest numerical computations involve the use of one and two dimensional binomial lattices that support a mean reverting process for coal and gas prices basic parameter values are taken from an actual igcc power plant currently in operation sensitivity of some results with respect to the underlying stochastic process for fuel price is also checked

garbage recycling and illicit burning or dumping abstract with garbage and recycling as the only two disposal options we confirm prior results that the optimal curbside fee for garbage collection equals the direct resource cost plus external environment cost when illicit burning or dumping is a third disposal option that cannot be taxed directly the optimal curbside tax on garbage changes sign the optimal fee structure is a deposit refund system a tax on all output plus a rebate on proper disposal through either recycling or garbage collection the output tax helps achieve the first best allocation even though it affects the choice between consumption and untaxed leisure

revaluing the hierarchy of paper recycling this article revalues the hierarchy of paper waste management policies in a dynamic general equilibrium model incineration material recycling and the distinction between non renewable fossil fuels and renewable forest assets are incorporated by comparing the first order conditions from the command optimum with the conditions from the market model it is discovered that the unregulated market fails to create an optimal resource allocation to see how the market behaves in absence of environmental policy compared to the first best solution a numerical model is used pigouvian taxes and subsidies are derived to correct for the externalities

does the public employment service affect search effort and outcomes in this paper we examine the disincentive effects of the public employment service on the search effort of unemployed workers and on their exit rate from unemployment for that purpose we specify a structural search model with fixed and variable costs of search in which unemployed workers select their optimal search intensity given the exogenous arrival rate of job contacts coming from the public employment agency because the theoretical effect of an increase in this exogenous job contact arrival rate on the structural exit rate from unemployment is ambiguous we estimate this model using individual unemployment duration data our results show that the exit rate from unemployment increases with the arrival rate of job contacts obtained by the public employment service especially for low educated and low skilled workers they also show that the search effort is more costly for low educated women and low skilled adult unemployed workers this last result suggests that a public employment agency that matches searchers and employers is beneficial in the sense that it saves searchers in terms of search costs they would otherwise bear

from mill town to board room the rise of women s paid labor the widespread participation of women in paid labor outside of the home and in the highest echelons of society would have been unheard of a century ago this paper documents this dramatic change in women s social and economic status and argues that it was determined both by contemporaneous demand factors and by the characteristics expectations and social norms regarding work and family of different cohorts of women history suggests that change in women s labor force experiences may be slow because it must await the entry of new cohorts of women and also of men into the labor market

job search stigma effect and escape rate from unemployment this article formulates job search models incorporating certain types of the stigma effect of unemployment it is assumed that the probability of getting a job offer given the unemployment individual contacts the firm is influenced by the duration of unemployment and is justified in a signaling context the optimal search is analyzed for one sector as well as across several independent labor market segments it is shown that there are reasonably general conditions on the search environments for which both the individual reservation wage and escape rate are negative duration dependent a fact observed in empirical studies

upstream pollution downstream waste disposal and the design of comprehensive environmental policies abstract many policymakers are shifting their focus from media specific pollution problems to product specific life cycle environmental problems in this paper we develop a model of production and consumption that incorporates life cycle externalities and use it to solve for alternative policies to achieve a social optimum in general we find that no single instrument can solve multiple problems contrary to what some observers have suggested however we find that there are alternative ways of reaching the social optimum we also discover that an integrated approach to policy appears to be important no matter what policy options are adopted and finally we find that there is only a limited role for so called product life cycle assessments

how changes in labor demand affect unemployed workers this study analyzes the manner in which certain favorable shifts in labor demand affect job search although all shifts increase reservation wages they do not necessarily decrease expected unemployment spell durations and increase expected post unemployment wages so that upward sloping short run phillips curves may occur a result due to chamberlain is used to demonstrate that if the wage offer distribution is restricted to be logconcave two of the shifts guarantee downward sloping phillips curves for one of these two shifts previous research by flinn and heckman used logconcavity in a different manner to achieve properly shaped phillips curves

a comparison of public policies for lead recycling policies that encourage recycling may be used to reduce environmental costs from waste disposal because direct restrictions on disposal are difficult to enforce four recycling policies have been advanced i taxes on the use of virgin materials ii deposit refund programs iii subsidies to recycled material production and iv recycled content standards in this article i analyze the structure of these policies and their cost effectiveness in achieving reductions in disposal i then examine the policies in the empirical context of the recycling of lead from automobile batteries in order to calculate the effects of recycling programs i estimate the elasticities for primary and secondary lead supply and demand my results suggest that price based policy mechanisms can be successful in increasing lead recovery and that the difference in efficiency between the four approaches is similar

on the second best policy of household s waste recycling this study analyzes the second best household s waste recycling policy if we assume the first best economy with no illegal disposal or transaction costs then unit pricing an advance disposal fee and a recycling subsidy are required in order to achieve the social optimum such that both the sum of unit pricing and an advance disposal fee and the sum of unit pricing and a recycling subsidy are equal to the marginal disposal cost furthermore the first best outcome can also be obtained by a producer take back requirement system in the real economy however various factors prevent the first best optimal outcome in this study we consider two factors one being the transaction cost associated with a recycling subsidy or refund and the other being illegal disposal by the consumer if a recycling subsidy or a deposit refund system is adopted a transaction cost associated with it will be generated alternatively if unit pricing is adopted some of the consumed goods may be disposed of illegally we show the complete trade off between unit pricing and a recycling subsidy in other words we can not adopt unit pricing and a recycling subsidy simultaneously as a result there are three candidates for the second best policy unit pricing with an advance disposal fee a deposit refund system and a producer take back requirement system which of these three policies is the second best policy will depend on the relative magnitude of the price of a recycled good and the marginal transaction cost associated with a recycling subsidy or the refund in a deposit refund system generally if the price of a recycled good is positive and the marginal transaction cost is relatively high unit pricing with an advance disposal fee is the second best policy however where the price of a recycled good is negative and the marginal transaction cost is relatively high a producer take back requirement system is the second best policy further where the marginal transaction cost is relatively low a deposit refund system is the second best policy regardless of whether the price of a recycled good is positive or negative

does international harmonization of environmental policy instruments make economic sense harmonization of the instruments used in environmental policy has beenconsidered necessary to guarantee fair competition in internationalmarkets we examine the economic costs of harmonizing paper recyclingstandards in countries where the urgency of the waste disposal problemsdiffer using data of seven european countries we estimate thetechnologically feasible input combinations of pulp and waste paper forpaper production short term effects of two environmental policy measures minimum content requirement and utilization rate target are analyzed bytranslating the two administrative instruments into taxes and subsidies weshow that the shadow costs of the harmonization vary considerably betweencountries the difference in the domestic availability of waste may explainthe variation and a modification of the policy measures to incorporate thisaspect is suggested

fixed versus flexible production systems a real options analysis in this work we address investment decisions in production systems by using real options as is standard in literature the stochastic variable is assumed to be normally distributed and then approximated by a binomial distribution resulting in a binomial lattice the methodology establishes a discrete valued lattice of possible future values of the underlying stochastic variable demand in our case and then computes the project value we have developed and implemented stochastic dynamic programming models both for fixed and flexible capacity systems in the former case we consider three standard options the option to postpone investment the option to abandon investment and the option to temporarily shut down production for the latter case we introduce the option of corrective action in terms of production capacity that the management can take during the project by considering the existence of one of the following i a capacity expansion option ii a capacity contraction option or iii an option considering both expansion and contraction the full flexible capacity model where both the contraction and expansion options exist leads as expected to a better project predicted value and thus investment policy however we have also found that the capacity strategy obtained from the flexible capacity model when applied to specific demand data series often does not lead to a better investment decision this might seem surprising at first but it can be explained by the inaccuracy of the binomial model the binomial model tends to undervalue future decreases in the stochastic variable demand while at the same time tending to overvalue an increase in future demand values

uncertainty and the trade off between scale and flexibility in investment abstract this paper analyzes the behavior of a firm that chooses both the scale and timing of its investment sensitivity analysis shows that greater demand volatility is associated with the firm investing in larger increments less frequently this is in contrast to the conventional wisdom which is that greater volatility leads to investment in smaller increments more frequently overall the reduced frequency dominates the greater scale so that the long run average rate of investment is a decreasing function of demand volatility the timing and scale of investment are most sensitive to volatility when there are substantial investment economies of scale

recovery decisions of a producer in a legislative disposal fee environment the main objectives of the environmental legislation originating from extended producer responsibility epr principle are to lead producers to undertake recovery initiatives for their end of use products and to promote environmentally desirable product design it is still controversial whether current implementations of epr principle are effective in attaining these objectives this study seeks to answer the following questions 1 what is the impact of epr legislation on the product recovery decisions of producers 2 how do the redesign opportunities i e design for disassembly affect the willingness of producers for product recovery 3 how do the investment needs to start recovery practices and the reluctance of producers to allocate sufficient funds for this purpose affect the optimal recovery decisions we use stylized economic models to represent the implementation in practice and solving our models we obtain closed form and numerical solutions that help us to see the impact of various parameters on the optimal decisions of a producer our findings indicate that redesign opportunities encourage producers for more recovery however the reluctance of producers to cover the initial investments may substantially reduce the effectiveness of the legislation and the recovery amounts

product design and efficient management of recycling and waste treatment abstract using a general equilibrium model where material is first extracted then used for producing a consumption good recycled and finally treated to reduce environmental damage we study efficiency restoring policies when one or more of the constituent markets are inactive the material is modeled as being embodied in the output and forms an important aspect of green product design if all markets for embodied material per unit output fail and if recycling benefit exceeds environmental damage the policy instruments needed for green design are a tax on the consumption good supply and a subsidy on the demand for material input

household responses to pricing garbage by the bag this paper estimates household reaction to the implementation of unit pricing for the collection of residential garbage we gather original data on weight and volume of weekly garbage and recycling of 75 households in charlottesville virginia both before and after the start of a program that requires an eighty cent sticker on each bag of garbage this data set is the first of its kind we estimate household demands for the collection of garbage and recyclable material the effect on density of household garbage and the amount of illegal dumping by households we also estimate the probability that a household chooses each method available to reduce its garbage in response to the implementation of this unit pricing program we find that households 1 reduced the weight of their garbage by 14 2 reduced the volume of garbage by 37 and 3 increased the weight of their recyclable materials by 16 we estimate that additional illegal or at least suspicious disposal accounts for 0 42 pounds per person per week or 28 of the reduction in garbage observed at the curb this abstract was borrowed from another version of this item

option value uncertainty and the investment decision the options based approach to studying irreversible investment under uncertainty emphasizes that the opportunity cost of investment includes the value of the option to wait that is extinguished when an investment is undertaken thus the investment decision is affected by the determinants of the value of this option we extend and generalize a standard model of irreversible investment by introducing a second fully reversible technology and also incorporate partial reversibility by allowing capital to be abandoned at a cost as in the existing literature we find that the threshold value of the underlying asset in our case demand at which investment takes place is increasing in the uncertainty of demand we also find that the value of the option and thus the threshold value of the option value multiple at which investment takes place may be either increasing or decreasing in the uncertainty of demand in addition we find that for the case in which capital is used to replace the reversible technology the threshold value of the option value multiple is insensitive to the degree of reversibility of capital

one without the other behavioural and incentive policies for household waste management this paper provides a review of economic studies that analyses the use of multiple policies to cope with waste management problems we discuss the factors that influence selective sorting behaviour and the most appropriate policies for their promotion based on the works analysed our survey shows the original features of waste as an environmental problem requiring regulation the traditional approach in which decisions respond to rational behaviour particularly cost savings has some limits although not all public policies seem justified we argue that there might be a need for specific policies to promote recycling preferably based on the provision of information to consumers or on behavioural instruments indeed personal factors specific to each individual such as emotions and the influence of social interaction should be taken into account in the development of public policies we review the literature related to different rationales and identify some avenues for future research

a search model applied to the transition from education to work this paper presents the specification and estimation of a search model applied to the transition from education to work the theoretical search model includes the possibility of variable search intensity the empirical model with a reservation wage relation is estimated using maximum likelihood methods a data set containing information on new law graduates is used for the estimation finally the model is estimated for two separate subperiods to investigate the effects of market changes

greenhouse gas emissions waste and recycling policy abstract this paper examines least cost policies for waste reduction incorporating upstream greenhouse gas externalities associated with the production of consumption goods from various materials in particular we decompose the effect of deposit refund advance disposal fees and recycling subsidies on upstream greenhouse gas emissions we find that the benefits of reducing greenhouse gas emissions are of the same order as or larger than the benefits of reducing solid waste disposal implying larger optimal total waste reduction than previous studies furthermore the least cost intervention levels will be material specific and vary substantially across materials finally despite the reductions in emissions implied by increased recycling rates direct recycling subsidies are more costly and generate less emissions reductions than a deposit refund or advance disposal fee

efficient implementation of collective extended producer responsibility legislation extended producer responsibility epr is a policy tool that holds producers financially responsible for the post use collection recycling and disposal of their products many epr implementations are collective a large collection and recycling network crn handles multiple producers products in order to benefit from scale and scope economies the total cost is then allocated to producers based on metrics such as their return shares by weight such weight based proportional allocation mechanisms are criticized in practice for not taking into account the heterogeneity in the costs imposed by different producers products the consequence is cost allocations that impose higher costs on certain producer groups than they can achieve independently this may lead some producers to break away from collective systems resulting in fragmented systems with higher total cost yet cost efficiency is a key legislative and producer concern to address this concern this paper develops cost allocation mechanisms that

a proposition and an example in the theory of job search with hours constraints this paper considers wage hours contracts in the context of a jobsearch model the response of a risk averse worker to a wage translation of the offer distribution is examined a robust example illustrates that some natural results need not hold

the effect of bottle laws on income new empirical results eleven us states have bottle laws deposit refund programs that combine a consumption tax with a recycling rebate when states set the bottle deposit low enough it becomes a tax on high wage earners for whom the opportunity cost of their time prevents them from returning containers for their deposit however this bottle deposit will still be high enough that harvesting recyclables provides employment for low wage earners using individual data on observed cash recycling behavior this paper shows that an unintended consequence of bottle laws is that they have the potential to increase the incomes of very low wage workers

waiting for mr right rising inequality and declining marriage rates abstract this paper demonstrates that women search longer for their first or second husband in cities with higher male wage inequality and examines several alternative explanations a causal link is established by controlling for city fixed effects and city specific time trends and by using inequality in the woman s state of birth as a proxy for local male inequality increasing inequality explains about 25 of the marriage rate decline over the last few decades and this is not due to the endogenous moving or labor force decisions of women nor to the marital decisions of men in reaction to changes in their own wages

extended producer responsibility instruments and innovation in eco design an exploration through a simulation model abstract this paper presents an agent based simulation model that models both economical and physical relations between firms recyclers and consumers this framework allows an investigation into the connection between physical environmental variables waste flows virgin material flows and economic decisions of agents in the product chain i e firms innovation strategies consumers choices and development of recycling activities the paper highlights the value of using agent based modeling as an operational tool to investigate the effect of waste prevention policy on economic and technological decisions of agents we focus on three types of extended producer responsibility epr instruments which are recycling fees tax subsidy and norms the simulation results show that the impact of each instrument depends on the policy design in particular on the level of stringency and on the reward system which is implemented we show that only tax subsidy systems and stringent norms can lead to radical innovations and to significant changes in product designs in the case of tax subsidy the impact relies more on an innovation effect while in the case of norm it mainly relies on a selection effect

hidden unemployment a search theoretic interpretation abstract labor force surveys show that in the united states a significant fraction of the jobless who do not search for work and who are therefore not classified as unemployed by official statistics state that they want a job now a model of job search is used to interpret this phenomenon

environmental regulation of households an empirical review of economic and psychological factors abstract the literature on sustainable consumption and environmental regulation of household behavior is dominated by conceptual and normative approaches as a result many suggestions lack a firm empirical basis to overcome this deficiency econometric studies in three areas of environmentally relevant activities of households are reviewed residential use of energy generation of solid waste and recycling and residential use of water next to price and income elasticities attention is devoted to individual socio economic features and psychological factors such as attitudes knowledge perceptions and values potential psychological determinants and related insights are further examined by discussing a range of representative and illustrative statistical psychological studies of environmental behavior one important general finding is that there are very few empirical studies that systematically combine socio economic and psychological determinants a range of insights for environmental policy is derived and research recommendations are offered

a model of sequential investment abstract this paper specifies a model of a two stage sequential investment where the stages take time to complete it presents algebraic solutions for an individual firm s optimal sequential investment with costless suspension without suspension in the intermediate case of costly suspension and for aggregate investment with suspension the first stage trigger is below the second stage trigger for sufficiently long lags and high levels of output price uncertainty thus the firm may carry out exploratory investment we also evaluate the comparative statics of investment and show how the patterns of project costs and lags affect the incentive to invest

should unemployment insurance vary with the unemployment rate theory and evidence we study how the marginal welfare gain from increasing the unemployment insurance ui bene t level varies over the business cycle we do this by estimating how the moral hazard cost and the consumption smoothing bene t of ui vary with labor market conditions which we identify using variation in the interaction of ui bene t levels with the unemployment rate within u s states over time we nd that the moral hazard cost is procyclical greater when the unemployment rate is relatively low by contrast we do not nd evidence that the consumption smoothing bene t varies with the unemployment rate we use these empirical results to estimate the marginal welfare gain and we nd that it is modest on average but varies positively with the unemployment rate jel h5 j64 j65

waiting to invest investment and uncertainty the textbook analysis that accepts all projections with positive net present values as positive is quite generally wrong the ability to delay a project means that almost every project competes with itself postponed with uncertain interest rates even the simplest of projects has an option value the effect of interest rate uncertainty on the optimal delay of investment is sizable this implies that the rate of aggregate investment will depend on both the level of the real interest rate and the degree of interest rate uncertainty furthermore it is not necessarily true that investment rises with a fall in interest rates copyright 1992 by university of chicago press

product servicing for lifespan extension and sustainable consumption an optimization approach abstract sustainable consumption has been defined as the consumption of goods and services that meet basic needs and quality of life without jeopardizing the needs of future generations oecd 2002 lifespan extension of durable products underpins sustainable consumption this paper describes a novel approach to extend product lifespans by using product servicing that conceptualizes the interactions of a producer a policy maker and multiple consumer segments having different price demand relationships we propose a multi period mathematical optimization model that maximizes the producer s profit while optimizing the prices of different servicing options production quantities and inventory levels a computational study elicits several insights about how the optimal production or alternatively consumption quantities are affected by the introduction of product servicing and the effects of various product characteristics and government incentive or penalty levels on producer s profitability and on product servicing decisions we conclude that quantitative optimization models are useful for evaluating the impacts of different regulatory policies assessing the benefits of offering product servicing options and investing in design for durability and serviceability

optimal timing of technology adoption abstract in a dynamic programming framework this paper investigates the optimal timing of technology adoption by a competitive firm when technology choice is irreversible and the firm faces a stochastic innovation process with uncertainties about both the speed of the arrival and the degree of improvement of new technologies a numerical example illustrates how the optimal timing decision is affected by changes in parameter values reflecting market conditions the firm s initial technological attributes and the characteristics of the stochastic innovation process some of these effects turn out to be in sharp contrast to common intuition contrasting the optimal decision rule derived here with the rule obtained under the net present value shows that the former implies a slower pace of adoption than implied by the latter the optimal decision rule is generalized for the case of multiple technology switches and it is shown that for all the switching decisions except the last one the optimal rule satisfies the net present value criterion

project management under risk using the real options approach to evaluate flexibility in r d managerial flexibility has value in the context of uncertain r d projects as management can repeatedly gather information about uncertain project and market characteristics and based on this information change its course of action this value is now well accepted and referred to as real option value we introduce in addition to the familiar real option of abandonment the option of corrective action that management can take during the project the intuition from options pricing theory is that higher uncertainty in project payoffs increases the real option value of managerial decision flexibility however r d managers face uncertainty not only in payoffs but also from many other sources we identify five example types of r d uncertainty in market payoffs project budgets product performance market requirements and project schedules how do they influence the value from managerial flexibility we find that if uncertainty is resolved or costs revenues occurafter all decisions have been made more variability may smear out contingencies and thus reduce the value of flexibility in addition variability may reduce the probability of flexibility ever being exercised which also reduces its value this result runs counter to established option pricing theory intuition and contributes to a better risk management in r d projects our model builds intuition for r d managers as to when it is and when it is not worthwhile to delay commitments for example by postponing a design freeze thus maintaining flexibility in r d projects

internet job search and unemployment durations after decades of stability the technologies used by workers to locate new jobs began to change rapidly with the diffusion of internet access in the late 1990 s which types of persons incorporated the internet into their job search strategy and did searching for work on line help these workers find new jobs faster we address these questions using measures of internet job search derived from the december 1998 and august 2000 cps computer and internet supplements matched with job search outcomes from subsequent cps files we find that internet searchers are positively selected on observables but negatively selected on unobservables a beneficial unemployment duration reducing causal effect of internet job search is consistent with our estimates only if negative selection on unobservables is especially strong in other words only if the population of on line resumes is strongly adversely selected

efficient waste management policies and strategic behavior with open borders during the last decade waste management has been characterized by two main trends the growth of international trade of waste materials and the introduction of extended producer responsibility epr as a policy instrument in this paper a two country stylized model with imperfect competition in the recycling market is used to address two research questions first how do epr recycling targets interact with other policy instruments such as taxes on recycling residues and excise duties second how does strategic behavior of national policy makers influences the use of policy instruments the model demonstrates that a combination of epr with other instruments is needed to achieve the first best outcome when governments do not coordinate policies across borders strategic behavior may lead to a race to the bottom for taxes on recycling residues conversely strategic behavior may lead to a counter intuitive race to the top for excise duties and epr recycling targets it is shown that these instruments are not only used to stimulate waste prevention but also to extract rents from foreign recyclers

dynamic efficiency of extended producer responsibility instruments in a simulation model of industrial dynamics this article presents an original approach to the impact of extended producer responsibility instruments for waste prevention upon firms innovative strategies and market structure our analysis is based on a stylised framework of waste prevention developed by brouillat in this framework products are modelled as multi characteristic technologies whose evolution depends on firms innovation strategies and on the interactions with consumers and postconsumption activities recycling this stylised framework has been adapted to explore the impact of waste prevention instruments upon industrial dynamics and more particularly upon firms innovative strategies and upon the evolution of products characteristics and market structure we focus on two types of policy instruments recycling fees and norms for each instrument we will consider different policy designs in order to study their effects on industrial dynamics the main contribution of this article is to show how this type of simulation model can be used to explore the impact of waste prevention policy instruments on the technological evolution of products on innovation strategy and on the evolution of firms market shares the introduction of policy instruments in a simulation agent based model of industrial dynamics enables us to analyse more thoroughly how different policy designs can modify the dynamics of the system and more particularly how the incentives and the constraints linked to the policy instruments under consideration shape market selection copyright 2012 the author 2011 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

the two part instrument in a second best world abstract standard pigovian tax theory has been extended in two directions first many polluting activities are difficult to tax because they are not market transactions and so recent papers have shown that the same effects can be achieved by use of a two part instrument 2pi a tax on output or income and a subsidy for clean alternatives to pollution it is a generalization of a deposit refund system drs second a different literature concerns the second best pollution tax in the presence of other tax distortions here we combine the two extensions by looking at the second best 2pi when government needs revenue is the deposit larger and the rebate smaller we find explicit solutions for each tax and subsidy in a general equilibrium model with other tax distortions and we compare these to the rates in a first best model the tax subsidy combination is explained in terms of a tax effect an environmental effect and a revenue effect the model allows for flexible interpretation to show various applications of the 2pi we also discuss important caveats

for love or money or both this paper explores the implications for economic analysis societal well being and public policy of the movement of care services such as child and elder care from home to market a broad empirical overview sets the stage for the argument that this process cannot be properly evaluated using only a priori judgments about the suitability of marketization the context in which markets operate is crucial and while the growth of market provision poses some risks it also offers some potential benefits

does garbage pricing increase the immoral disposal of household waste abstractsome empirical studies have attempted to clarify the mechanism of illegal dumping by examining the degree to which per bag pricing plays a role however previous research on the behaviour of avoiding paying a charge for waste collection has tended to neglect so called immoral disposal which is less risky than illegal dumping because there is no legal penalty in this study we define immoral disposal as the dumping of waste in a manner that is immoral but not illegal to detect the existence of immoral disposal we apply a spatial econometric approach namely an extended panel spatial durbin model to identify the actual spillover effect of garbage pricing in neighbouring municipalities on immoral disposal from the total waste a major finding of this study is that immoral disposal exists in unit based pricing two tiered pricing and fixed pricing

feed in subsidies taxation and inefficient entry we study energy markets with dirty production and lumpy entry costs of clean production renewables for intermediate entry costs markets yield inefficient production and inefficient entry a mix of three popular regulatory instruments polluter taxation feed in subsidies for renewables and consumption taxation cannot correct these market failures for larger entry costs the instruments are imperfect because they affect marginal incentives whereas entry is a lumpy fixed cost problem whenever the first best is implementable feed in subsidies and consumption taxes are redundant the second best requires feed in subsidies or consumption taxes in addition to a pollution tax and overshoots first best levels given production levels the instruments do not affect the regulator s budget

application of the distance function to nonmarket valuation of environmental goods and services an illustrative example abstract this paper develops and implements a unique formulation of a household production model in that technology is characterized as a distance function the properties of the distance function allow for the derivation of shadow prices for the inputs and outputs associated with household production which can be applied to the problem of valuing nonmarket goods or activities the approach requires only one input to or output of household production to bear a price the derivation of shadow prices for all other household inputs outputs follows from the properties of the distance function i demonstrate the approach using data on the waste management activities of a sample of households from marietta georgia and by calculating shadow prices for the nonmarket activity of recycling

time to build option value and investment decisions abstract investment decisions and outlays are often made sequentially for example the rate at which construction proceeds is usually flexible and can be adjusted with the arrival of new information traditional discounted cash flow methods which treat the pattern of investment as fixed ignore this flexibility and understate the value of the project this paper uses contingent claims analysis to derive optimal decision rules and to value such investments we determine the effects of time to build opportunity cost and uncertainty on the investment decision for reasonable parameter values we show how a simple npv rule can lead to gross errors

two generalizations of a deposit refund system this paper suggests two generalizations of the deposit refund idea in the first we apply the idea not just to solid waste materials but to any waste from production or consumption including wastes that may be solid gaseous or liquid using a simple general equilibrium model we derive the optimal combination of a tax on a purchased commodity and subsidy to a clean activity such as emission abatement recycling or disposal in a sanitary landfill this two part instrument is equivalent to a pigovian tax on the dirty activity such as emissions dumping or litter in the second generalization we consider the case where government must use distorting taxes on labor and capital incomes to help meet the revenue requirement would the optimal deposit be raised and the refund reduced we derive the second best revenue raising drs or two part instrument to answer that question this abstract was borrowed from another version of this item

optimal policies for solid waste disposal taxes subsidies and standards abstract pricing trash collection and disposal services can be politically unpopular and may lead to increased illegal disposal of trash several studies have shown that deposit refund systems can act like disposal charges without the illegal disposal problem and thus can generate an optimal amount of solid waste disposal we assess the efficiency implications of an alternative policy currently in use in some states in the u s and considered at the federal level recycled content standards these are requirements that a certain fraction of total material use in production be comprised of secondary materials we find that such standards by themselves cannot generate the optimal amount of disposal but must be combined with additional taxes on both the final product and other inputs to production moreover the information requirements for setting the optimal standards and accompanying taxes are high the deposit refund approach would be preferred in most cases

reconsideration of an advance disposal fee policy for end of life durable goods abstract this paper analyzes the optimal waste disposal policy for durable goods the existing literature does not differentiate between durable and non durable goods and concludes that the social optimum can be attained by either a disposal fee df policy or an advance disposal fee adf policy in an economy without transaction costs this study shows however that in such an economy the first best policy is not an adf policy but a df policy adoption of an adf policy results in excessive consumption and disposal compared to the social optimum in addition under an adf policy the lifetime of durable goods is shorter than the social optimum if we take transaction costs into account we must consider the second best policy an adf policy can be considered as second best in some situations since it has some transaction cost advantages over other policies an adf policy can be second best either if net disposal cost is relatively low or if repair cost is relatively high

an economic analysis of household waste management abstract this paper provides a comprehensive model of household waste management policy incorporating the possibility of waste reduction effort by the firm and the household and of illegal waste disposal by the household when household waste reduction effort is insignificant the first best optimum can be achieved using various combinations of environmental tax on the firm and waste collection charge on the household however when household waste reduction effort is significant the first best optimum is not achievable and explicit monitoring of illegal waste disposal is needed rendering a simple pigouvian tax sub optimal this paper solves for the second best optimal policy and provides some comparative statics of the optimal policy