framing and retirement age the gap between willingness to accept and willingness to pay summaryin a large online experiment we relate the retirement timing decision to the disparity between the willingness to accept wta and the willingness to pay wtp in the wtp treatment participants indicate the maximum amount of monthly benefits they are willing to give up to retire early in the wta treatment the minimum increase of monthly payments to delay retirement is elicited our results reveal that the framing of the decision problem strongly influences participants reservation price for early retirement the wta for early retirement is more than twice as high as the corresponding wtp using actual values from the german social security system as market prices we demonstrate that the presentation in a wta frame can induce early retirement in this frame the implicit probability of retiring early increases by 30 percentage points we further show that the disparity between wta and wtp is correlated with loss aversion repeating the analysis with data from a representative household survey german save panel we find similar results

retirement in dual career families a structural model a structural econometric model of retirement of dual career couples is specified and estimated with panel data from the national longitudinal survey of mature women a coincidence of spouses retiring together despite the younger ages of wives suggests explicit efforts at coordination the estimates suggest that one reason is a correlation of tastes for leisure more important each spouse and perhaps husbands in particular values retirement more once their spouse has retired the opportunity set accounts for peaks in the retirement hazards of each spouse individually but not for peaks in the simultaneous retirement of both spouses

dynamic firm behavior within an uncertain environment abstract in this paper we study the impact of an uncertain environment on the optimal dynamic investment policies of a value maximizing firm we present a model in which risk averse behavior of the shareholders is incorporated we derive the policies that can be optimal for the firm and present solutions under different scenarios after incorporating a dynamic version of the capital asset pricing model we can derive a new formula for the shareholders time preference rate which consists of the riskless interest rate and a risk premium

firm behaviour under pollution ratio standards with non compliance this paper compares a firm s short run optimal production and abatement rules under emission level standards and standards expressed in terms of emissions per unit of output ratio standards the models allow for non compliance with standards with expected penalties dependant on either level or relative violations of the standard in question it is shown that ratio arguments make a difference to the optimal decision rules derived for a profit maximising firm for example for a given level of emissions the firm both produces more and abates more under a ratio standard so that ratio and level standards cannot be used interchangeably to achieve the same combination of emissions and output the implications for the efficiency of pollution control are briefly discussed

erratum standards versus standards the effects of different pollution restrictions when economists refer to pollution standards they almost universally mean uniform restrictions on pollution emissions e g william j baumol and wallace e oates 1975 ch 13 susan rose ackerman 1973 david besanko 1978 however in practice standards take many forms not only emissions restrictions but restrictions on pollution per unit of output or per unit of an input restrictions on the use of a polluting input or mandated use of a particular pollution control technology these specifications of regulations will have a variety of effects on a firm s resource allocation decisions for instance allowing pollution per unit of output as the standard instead of directly restricting the level of pollution gives the firm some choice in addition to reducing pollution it can increase its output to dilute the pollution this paper examines the effects of five different forms of pollution standards on input decisions the level of production and firm profits the results show that the different standards by providing firms with different incentives change the firm s allocation decisions and affect the relative profitability of the standards section i reviews the existing literature on the incentives of different instruments the following section describes the model to be used five different forms of pollution constraints are individually examined in section iii using a graphical approach their relative effects as well as some special cases are assessed in section iv finally section v raises the case of different standards when firms are not identical

input and output inventories abstract this paper presents a new stage of fabrication inventory model with delivery usage and stocks of input materials that distinguishes between gross production and value added it extends the linear quadratic model of output inventories by adding the joint determination of input inventories empirically input inventories are more important than output inventories maximum likelihood estimation of the decision rules yields correctly signed and significant parameter estimates using data for nondurable and durable goods industries but the overidentifying restrictions of the model are rejected the value added specification dominates because adjustment costs on materials usage are critical to fitting the data

the costs of water pollution regulation in the pulp and paper industry this paper studies plant level data on actual and permitted levels of water pollution emissions for the pulp and paper industry there is widespread and substantial overcompliance with the relevant regulations aggregate bod emissions in 1992 were only 50 of the amount allowed overcompliance appears to imply a zero marginal abatement cost and its prevalence therefore has the potential to substantially change the debate over the costs of regulation we show instead that plants incurred substantial costs to overcomply marginal abatement costs were roughly 13 000 ton in 1992 we discuss possible explanations for costly overcompliance and their implications for estimation

second best energy policies for heterogeneous firms this paper investigates second best issues in the regulation of external costs of energy use by heterogeneous firms the efficiency of regulatory energy policies depends in general on the policy incentives given for both output reduction and input substitution the resulting endogeneity of firms supply functions appears to lead to complicated policy rules in contrast to earlier efforts the analysis considers an arbitrarily large number of non identical price taking firms in a joint market a large variety of possible production functions including varying levels of economies of scale and possibilities for input substitution and elasticities of market demand which may vary from completely elastic to completely inelastic two second best instruments are considered namely output taxes and energy efficiency standards and are compared to the benchmark of first best energy taxes the underlying market factors determining the relative efficiency of these second best instruments when used optimally are identified

quasi hyperbolic discounting and retirement abstract some people have self control problems regularly this paper adds endogenous retirement to laibson s quasi hyperbolic discounting savings model quarterly journal of economics 112 1997 443 477 earlier selves think that the deciding self tends to retire too early and may save less to induce later retirement still earlier selves may think the pre retirement self does this too much saving more to induce early retirement the consumption pattern may be different from that with exponential discounting other observational non equivalence includes the impact of changing mandatory retirement rules or work incentives on savings and a possibly negative marginal propensity to consume out of increased future earnings naive agents are briefly considered

time inconsistency and retirement choice hyperbolic discounting with naivete is widely believed to provide a better explanation than exponential discounting of why people borrow so much and why they wait so long to save for retirement we reach a different set of conclusions we show that if financial planning is enriched to include the choice of when to retire then naive hyperbolic discounters may borrow far less and start saving for retirement significantly earlier than exponential discounters

permit trading and credit trading a comparison of cap based and rate based emissions trading under perfect and imperfect competition this paper compares emissions trading based on a cap on total emissions permit trading and on relative standards per unit of output credit trading two types of market structure are considered perfect competition and cournot oligopoly we find that output abatement costs and the number of firms are higher under credit trading allowing trade between permit trading and credit trading sectors may increase welfare with perfect competition permit trading always leads to higher welfare than credit trading with imperfect competition credit trading may outperform permit trading environmental policy can lead to exit but also to entry of firms entry and exit have a profound impact on the performance of the schemes especially under imperfect competition we find that it may be impossible to implement certain levels of total industry emissions under credit trading several levels of the relative standard can achieve the same total level of emissions

double dipping in environmental markets abstract there is an increasing tendency to use markets to induce the provision of environmental services as such markets increase in scope potential market participants might sell multiple environmental services the question we consider here is whether participants in such markets should be allowed to sell credits in more than one market simultaneously some have argued in favor of such double dipping because it would make the provision of environmental services more profitable in practice however most programs do not allow double dipping we show that if the optimal level of pollution abatement is sought then double dipping maximizes societal net benefits however if pollution policies are set in a piecemeal fashion then the caps for each market are unlikely to be optimal and in this second best setting a policy prohibiting double dipping can lead to greater social net benefits we explore conditions under which a single market policy is preferred or equivalently where piecemeal policies are likely to yield particularly inefficient outcomes

voluntary environmental agreements good or bad news for environmental protection abstract there has been growing interest in the use of voluntary agreements vas as an environmental policy tool this article uses a simple model to determine whether vas are likely to lead to efficient environmental protection we consider cases where polluters are induced to participate either by a background threat of mandatory controls the stick approach or by cost sharing subsidies the carrot approach the results suggest that the overall impact on environmental quality could be positive or negative depending on a number of factors including the allocation of bargaining power the magnitude of the background threat and the social cost of funds

measuring self control problems we develop a survey instrument to measure self control problems in a sample of highly educated adults this measure relates in the manner that theory predicts to liquid wealth accumulation and personality measures yet while self control problems are typically seen as resulting in overconsumption and low wealth we identify a significant group who underconsume and thereby accumulate high levels of wealth in addition self control problems are smaller in scale for older than for younger respondents those who put money aside in retirement accounts may be delaying access to a point at which self control problems are no longer important jel d12 d14

on emissions trading and market structure cap and trade versus intensity standards this paper examines the interdependence between imperfect competition and emissions trading we particularly analyze the long run equilibrium in a two sector clean and dirty model with cournot competition among firms who face a fixed cost of production the clean sector is defined as the sector with the highest long run cost margin on emissions we compare the welfare implications of a cap and trade scheme with an emissions trading scheme based on relative intensity standards it is shown that a firm s long run equilibrium output in the clean or dirty sector does not depend on the emissions trading format but only depends on the fixed cost of producing in the respective sector intensity standards can result in clean firms selling allowances to dirty firms or dirty firms selling to clean firms the former outcome yields higher welfare it is demonstrated that cap and trade outperforms the intensity based trading scheme in terms of long run welfare with free entry and exit with intensity standards the size of the clean sector is too large

post reform industrial productivity performance of china new evidence from the 1985 industrial census data i introduction during the last decade china implemented a series of economic reforms that followed what many observers agreed was a period of stagnation in industrial productivity 1 the first wave of chinese economic reforms 1978 79 following the economic opening to the west under the four modernizations began after the third plenum of the eleventh central committee of the communist party of china announced a new policy of economic modernization in december 1978 a major goal of the new policy was to improve productivity toward this end the party would 1 allow the formation of private enterprises 2 permit state owned and collective enterprises to retain a portion of their profits 3 devolve a greater degree of decision making to factory managers and drastically reduce the scope of planning 4 introduce material incentives such as bonuses to labor and 5 place increased reliance on markets for inter industry resource allocation it is important to note that at this time in the early 1980s real reform was limited to the agricultural sector as discussed in perkins 1988 the second wave of reforms occurred in 1983 84 with the announcement of sweeping changes for the urban industrial sector these reforms included four major measures 1 a reduction in the number of leadership positions in enterprises 2 a further expansion of enterprise managers authority 3 the substitution of an income tax for remission of profits to the state and 4 removal of the ceiling on bonuses naturally it is important to know whether or not these reforms improved chinese industrial productivity since the early 1980s both chinese and western economists have conducted many empirical studies on china s post reform economic performance however the results from these studies are far from conclusive for example the world bank 1983 1985 field 1984 yeh 1984 chen 1986 chen and sang 1986 pan 1986 and tidrick 1986 have reported that input accumulation accounts for nearly all of output increases in industry as a whole in the early 1980s in particular tidrick 1986 found that china s performance has been extremely disappointing total factor productivity in the state owned industrial sector declined at an annual rate ranging from 0 10 percent to 1 20 percent for the period 1978 83 in contrast more recent studies such as those by kuan et al 1988 and jefferson 1988 have found that china s post reform industrial productivity was significantly improved most notably kuan et al 1988 found that chinese industrial productivity in the state owned sector grew at an average annual rate ranging from 2 7 to 3 1 percent for 1980 84 and from 15 3 to 18 2 percent for 1984 85 this difference in the findings reported in the literature is striking and requires further investigation one explanation is that the various studies are based on different data sets time periods models and data construction methods for example tidrick 1986 used aggregate time series data for state owned industry for the period 1952 83 while kuan et al 1988 used aggregate time series data including only independent accounting units within the state owned industrial sector for the period 1953 85 perkins 1988 reviewed china s overall post reform economic performance using data at the national level he found that during 1976 85 total factor productivity in china grew at an annual rate of 3 79 percent accounting for over 40 percent of china s net material product he concluded that reform and productivity growth thus led the way to higher overall growth and that agriculture and the collectively organized small scale industrial enterprises play an important role in the accelerated productivity growth of the reform periods perkins however hastened to point out that his conclusion is based on impressionistic evidence and is in no sense definitive and suggested that disaggregated data on outputs and inputs by sector or individual industries are required to identify those sectors that accounted for most of the rise in productivity perkins 1988 628

customer and supplier driven externalities the purpose of this paper is to provide empirical evidence helpful for distinguishing different types of externalities we pursue this by extending the productionfunction framework of robert e hall 1990 and caballero and lyons 1990 1992 to exploit two key dimensions of the data disaggregate input output relationships and differences between estimates emphasizing time series versus cross sectional aspects of the data we obtain three main results first from the within estimates using annual data which emphasize the time series properties common across sectors we find a strong reduced form relationship between industry productivity and the activity level input growth of customers in sharp contrast supplier activity levels are insignificant the second result derives from between estimates which emphasize the cross sectional dimension of the data here we find the opposite is true there is a strong reduced form relationship between industry productivity and the activity level of suppliers but no relationship with customer activity levels we interpret the first two results as suggesting that over shorter horizons the linkage between an industry and its customers is pivotal in the transmission of external effects while in the long run external effects are mostly related to intermediate goods linkages the third result concerns the transition from short to long run we find that as the number of periods over which the variables are averaged is incrementally increased from one year toward the full sample period 27 years the significance of customers versus suppliers smoothly reverses itself the remainder of the paper is organized in four sections section i presents the core model and the econometric methods for disentangling the external effects section ii describes the data and estimation section iii presents the main results and our conclusions are presented in section iv

the role of information for retirement behavior evidence based on the stepwise introduction of the social security statement abstract in 1995 the social security administration started sending out the annual social security statement it contains information about the worker s estimated benefits at the ages 62 65 and 70 i use this unique natural experiment to analyze the retirement and claiming decision making first i find that despite the previous availability of information the statement has a significant impact on workers knowledge about their benefits these findings are consistent with a model where workers need to gather costly information in order to improve their retirement decision second i use this exogenous variation in knowledge to analyze the optimality of workers decisions several findings suggest that workers do not change their retirement behavior i workers do not change their expected age of retirement after receiving the statement ii monthly claiming patterns do not show any change after the introduction of the social security statement iii workers do not become more sensitive to social security incentives after receiving the statement more research is needed to establish whether workers are already behaving optimally but the information contained in the statement is not sufficient to improve their retirement behavior

it and productivity in u s manufacturing do computer networks matter i introduction how computers affect productivity is a long standing research question many recent studies argue that information technology it particularly computers is a significant source of u s productivity the specific mechanism remains elusive detailed data on the use of computers and computer networks have been scarce this article uses new plant level data on computer networks collected by the u s census bureau to estimate the effect of computer networks on labor productivity across u s manufacturing plants the computer network use supplement cnus to the 1999 annual survey of manufactures asm focused on the use of computer networks rather than the presence of computers alone linking the cnus data to current and previous information for the same plants collected in the 1999 asm and the 1997 and 1992 census of manufactures cm allows us to examine the relationship between productivity and the use of computer networks our work differs from others in several important aspects first this is the first study linking the use of computer networks to labor productivity using data for approximately 30 000 plants representing the u s manufacturing sector most previous studies examining the link between productivity and computers or other it in the united states focus on the presence of computers using either data on the stock of computer capital or on current it or computer investment as proxies for the computer stock only one previous study mcguckin et al 1998 examined the link between productivity and how computers were used that study was limited to five u s two digit manufacturing industries covered in the 1988 and 1993 surveys of manufacturing technology smt collected by the u s census bureau and did not separate the use of computer networks from other uses of computers and advanced technologies second we extend the existing model relating it to productivity by including materials as a separate input our dependent variable is a gross output measure of labor productivity although gross output is an appropriate measure of the theoretical output particularly at the plant level most previous plant level studies for the united states use a value added measure and exclude materials as a factor input possibly making their results subject to omitted variable biases third we model the probability that a plant has a computer network as a function of its performance and conditions in prior periods this probability is of interest in its own right it also makes possible the fourth distinguishing feature of our work testing for possible endogeneity problems associated with the computer network variable if good plants are more likely to have computer networks we must account for these characteristics to get a more accurate estimate of the effect of networks our research has five principal findings first average labor productivity is higher in manufacturing plants with networks than in plants without networks second computer networks have a positive and significant effect on labor productivity after controlling for other important factors such as capital intensity and other plant characteristics third the choice of theoretical model has empirical consequences previous studies using value added models appear to overstate the effect of it on productivity by factors of two to three fourth plants with lower relative productivity in previous periods are more likely to have computer networks fifth computer networks have a positive and significant effect on labor productivity even after taking account of possible endogeneity of the computer network variable ii background computers play an important role in the strong economic performance of the u s economy according to many recent studies this role is particularly important during the surge of productivity growth in the late 1990s as discussed in oliner and sichel 2000 jorgenson and stiroh 2000 jorgenson 2001 stiroh 2001 and triplett and bosworth 2000

the economic implications of using haccp as a food safety regulatory standard abstract this article discusses the nature and role of hazard analysis critical control point haccp as a food safety control system and in particular its role as an element of public food safety regulation the notion of efficiency in food safety regulation is discussed and related to the nature of food safety controls it is suggested that if appropriately applied haccp is a more economically efficient approach to food safety regulation than command and control cac interventions the economic implications of haccp are discussed with reference to estimates of the costs and benefits in particular for the food industry finally the use of haccp as an international trade standard and the facilitation of trade in processed food products is considered

optimal investment policies for a polluting firm in an uncertain environment in this paper a stochastic dynamic model of the firm is used as a framework to study the optimality of abatement investments production causes pollution as an inevitable byproduct and in this model the latter is taxed by the government the firm can diminish these tax payments through reducing its pollution output by carrying out abatement investments it turns out that provided that its liquidity position is sufficiently strong the firm performs a growth policy such that expected marginal revenues of productive and abatement investments are balanced growth stops as soon as marginal revenue equals the shareholders time preference rate at that time dividend is paid out we also obtain that the emissions tax rate must exceed a certain lowerbound when the government wants emissions to decrease during the firm s growth phase

welfare implications of the renewable fuel standard with an integrated tax subsidy policy abstract this paper derives the optimal integrated tax subsidy policy where one input is taxed and revenues are used to subsidize the use of a substitute input to reduce greenhouse gas emissions given the existing policies under the renewable fuel standard policies we measure the welfare effects and impact on cellulosic ethanol production after implementing the tax subsidy policy using a general equilibrium model a revenue neutral integrated tax subsidy scheme leads to a small positive tax rate for crude oil and a large positive subsidy for cellulosic ethanol because the former has a larger emissions coefficient than the latter the overall welfare effects of an integrated tax subsidy scheme are less than a 1 increase for the economy but the growth in the cellulosic ethanol industry could range from 28 to 238 because the revenues from taxing crude oil are directly used to subsidize cellulosic ethanol production

emissions trading ercs or allowances emissions trading takes place from two alternative baselines 1 emission reduction credits ercs in which the baseline is existing regulations which are often activity based or 2 cap and trade which specifies the total allowable emissions this paper examines the effects of these two tradable permit systems on marginal and average costs for the firm using electricity generation as an example the erc system subsidizes the activity level to which it is tied and fails to incorporate the full cost of external harm into the product price if the permit limit is chosen ef ficiently the cap and trade system is more effi cient

pollution standards vs charges under uncertainty conventional analysis of pollution control policy under uncertainty does not properly account for the potential cost effectiveness difference between standards and charges thus drawing misleading conclusions for the case of inefficient standards correcting for this anomaly the following conclusions can be drawn when uncertainty involves the position of the marginal damage cost schedule rather than policy indifference a charge is always superior to an inefficient standard when uncertainty is about the position of the marginal control cost schedule policy indifference may occur but if it does it must be the case that the slope of marginal damage cost exceeds that of marginal control cost

weitzman revisited emission standards versus taxes with uncertain abatement costs and market power of polluting firms studies dealing with the optimal choice of pollution control instruments under uncertainty have invariably taken it for granted that regulated firms face perfectly competitive markets by introducing the product market into the stochastic framework of weitzman rev econ stud 41 477 491 1974 this paper shows for the case of a polluting symmetric cournot oligopoly that weitzman s policy rule for choosing emission standards versus taxes with uncertain abatement costs is biased in the presence of market power since the oligopolists take into account their influence on the market price their total abatement effort including the restriction of output is less vulnerable to miscalculations of the tax rate compared to price taking firms consequently the comparative advantage of instruments is shifted in favour of taxes in a further step the provided policy recommendations are generalised by abolishing the assumption that firms are symmetric

time inconsistency and delayed retirement decision the french pension bonus with the increase in life expectancy and demographic shocks several public policies in the last decades aim to encourage individuals to postpone retirement one of them the pension bonus gives a

performance versus design standards in the regulation of pollution abstract this paper presents a model of pollution regulation in an oligopolistic market two forms of regulation are considered performance standards which regulate pollution directly by an upper limit on emissions and design standards which regulate pollution indirectly by a minimum usage requirement of an enissions control input equilibria under each regulatory regime are characterized a welfare analysis reveals that performance standards are preferred to design standards if the objective is minimization of emissions plus pollution damage costs however the comparison is indeterminate if the regulator s objective is total surplus less pollution damage an equivalence between emissions taxes and performance standards is established so the above welfare comparisons also apply to emissions taxes versus design standards

what you don t know can t help you pension knowledge and retirement decision making abstract this paper provides an answer to an important empirical puzzle in the retirement literature while most people know little about their own pension plans retirement behavior is strongly affected by pension incentives we combine administrative and self reported pension data to measure the retirement response to actual and perceived financial incentives and document an important role for self reported pension data in determining retirement behavior well informed individuals are far more responsive to pension incentives than the average individual ill informed individuals seem to respond systematically to their own misperceptions of pension incentives

investment under uncertainty irreversibility and the arrival of information over time in this paper we consider a risk neutral competitive firm which is uncertain about the true state of demand we build upon arrow by demonstrating that the irreversibility of investment in physical capital together with the anticipation of receiving information and of learning the state of demand lead to 1 cautious investment behaviour and hence to lower investment levels than otherwise since the firm cannot disinvest if market conditions turn out to be less favourable than currently anticipated 2 a time varying risk premium or marginal adjustment cost which is shown to arise endogenously and to be positively related to the investment level and to the anticipation of greater information in the sense of blackwell 1951 1953 3 a gradual adjustment of the capital stock to the desired level defined as the optimal capital stock corresponding to the true state of demand

emissions reductions or green booms general equilibrium effects of a renewable portfolio standard renewable portfolio standards rps are commonly promoted as a policy tool to reduce emissions associated with fossil generation while also stimulating development of local renewable resource endowments we develop a general equilibrium model of an rps policy that captures key features such as a fixed factor renewable endowment substitution across sectors of the economy and endogenous price responses we analytically decompose the effects of an rps into a a substitution effect b an output tax effect and c an output effect we show that an increase in the rps can either deliver large resource booms or large emissions savings but not both our framework can translate different renewable resource endowments and pre existing standards across states into economic and environmental impacts to inform current renewable energy and climate policies

should i stay or should i go an econometric analysis of retirement decisions by couples abstractthis article analyses retirement decisions from a household perspective treating the retirement timing of spouses as potentially interdependent choices to identify the determinants of ret

labor supply effects of the recent social security benefit cuts empirical estimates using cohort discontinuities abstract in response to a crisis in social security financing two decades ago congress implemented an increase in the normal retirement age nra of 2 months per year for cohorts born in 1938 and after these cohorts began reaching retirement age in 2000 this paper studies the effects of these benefit cuts on recent retirement behavior the evidence suggests that the mean retirement age of the affected cohorts has increased by about half as much as the increase in the nra if older workers continue to increase their labor supply in the same way there might be important implications for the estimates of social security trust fund exhaustion that have played such a major role in recent discussions of social security reform

raw materials profits and the productivity slowdown a complementary note raise ever since the problem was first discussed in the late 1970s there has been growing evidence that the sharp productivity slowdown of the industrial countries in the last decade must have been closely linked to the specific macroeconomic shocks of that period and could not be explained by gradual processes such as the slowing down of the technological frontier or the drying up of the sources of conventional factor supplies like land or immigrant labor in no case except possibly the united states is there evidence of a sharp slowdown in productivity growth in the 15 20 year period before 1973 a simple statistical test dates at least one major kink in the productivity growth of most countries in and around the period 1973 1975 the implied link with the sharp oil and raw material price shock of that time is further borne out by the fact that the total productivity slowdown across countries at least in manufacturing seems correlated with the relative raw material price acceleration in different countries though this is not the only direct explanatory factor bruno and sachs 1985 table 12 4 in an attempt to give a theoretical rationale for the link between the events of the 1970s and the sharp productivity slowdown several candidates offer themselves the first and most obvious one for gross output measures of productivity in a material intensive sector like manufacturing is the direct substitution in production of primary inputs against costly energy and raw materials other things being equal conventional doubledeflated base weighted measures of value added productivity will in such case impart a downward bias to the slowdown

the impact of public scrutiny on corporate philanthropy this paper proposes that a corporation s vulnerability to public scrutiny drives its corporate giving the hypothesis that companies donate for strategic motives is tested against the alternative that they do so for altruistic reasons court cases and news articles were selected as proxies for public scrutiny macroeconomic variables were used to gauge the level of public charitable need and test for altruism through examining the philanthropic behavior of 40 fortune 500 companies over 7 years this paper finds that companies are strategic and altruistic in their giving

does raising the early retirement age increase employment of older workers two pension reforms in austria increased the early retirement age era from 60 to 62 for men and from 55 to 58 25 for women we find that raising the era increased employment by 9 75 percentage points among affected men and by 11 percentage points among affected women the reforms had large spillover effects on the unemployment insurance program but negligible effects on disability insurance claims specifically unemployment increased by 12 5 percentage points among men and by 11 8 percentage points among women the employment response was largest among high wage and healthy workers while low wage and less healthy workers either continued to retire early via disability benefits or bridged the gap to the era via unemployment benefits taking spillover effects and additional tax revenues into account we find that for a typical birth year cohort a one year increase in the era resulted in a reduction of net government expenditures of 107 million euros for men and of 122 million euros for women

emissions taxes versus intensity standards second best environmental policies with incomplete regulation the best emissions tax or emissions cap may be an inferior instrument under incomplete regulation leakage without leakage an intensity standard regulating emissions per unit of output is inferior due to an implicit output subsidy this inefficiency can be eliminated by an additional consumption tax with leakage an intensity standard can dominate the optimal emissions tax since the implicit output subsidy prevents leakage the addition of a consumption tax improves an intensity standard s efficiency may prevent leakage and may be efficient comparing intensity standards to output based updating shows that the latter dominates if updating is sufficiently flexible