the incidence of personal income taxation evidence from the tax reform act of 1986 abstract this paper studies the short run incidence of personal income taxation in the us by examining how the wage structure shifted after the tax reform act of 1986 i calculate the marginal tax rate for the median worker of each occupation during the 1980s to determine the professions whose workers were most affected by the tax change when controlling for trends over time in the wage structure by occupation i find that individuals in occupations that experienced large decreases in their median marginal tax rates received lower pre tax wages after 1986 as the number of workers and the hours worked in those professions increased the results suggest that consideration of the wage effects of tax reforms is important when using these reforms to identify behavioral parameters and evaluating their distributional consequences

pricing under quality of service uncertainty market segmentation via statistical qos guarantees abstract this article examines how performance contingent pricing schemes with long term statistical performance guarantees can be applied to many it services we study two forms of performance contingent pricing with rebate proportional to failure rate and fixed rebate for below threshold performance we show that threshold performance contingency pricing can increase both profits and fairness customers who receive higher benefits pay higher effective price relative to standard pricing but an even better solution is to offer a menu of performance guarantees this can increase the firm s profit and segment the market only service providers whose performance level is sufficiently better than the industry standard can benefit from this pricing mechanism

money back warranties vs replacement warranties a simple comparaison product warranties are one of the most common time honored and visible contractual relationships entered into by consumers moreover under the uniform commercial code consumers are covered by an implied warranty of merchantability even without a written warranty in this paper we compare the outcomes of two contrasting types of consumer product warranties money back warranties and replacement warranties both these types of warranties are ubiquitous in fact a best and a r andreasen 1977 find that returning an item is the most common action taken by dissatisfied consumers c l kendall and f a russ 1975 in a study of the consumer packaged goods industry find that money back and new merchandise are the two most common responses made by firms to consumer complaints yet as our analysis shows there are significant differences in the incentives they provide firms and in their welfare properties in particular we find that the comparison depends crucially on the observability of quality and on the cost of servicing warranties although there are certainly more complicated explanations for warranties we rely on a simple model of imperfect consumer information in which to embed our comparison of the relative performance of these two forms of warranty consumers are confronted by seller moral hazard that is either they are unable to discern the quality of a product before purchase or alternatively this information is extremely costly for consumers to obtain or for firms to publicly demonstrate we abstract from issues such as differing degrees of risk aversion consumer moral hazard and screening each of which is frequently the rationale behind warranty provision our model is perhaps closest to the model presented in michael spence s 1977 article in which he analyzes the provision of warranties in an environment with biased consumer information

signaling quality with a money back guarantee the role of transaction costs direct marketing is witnessing explosive growth as consumers increasingly purchase products from their homes their ability to judge the quality of products they buy is significantly reduced in this paper we study how money back guarantees can signal product quality in such environments we interpret product quality broadly to mean both the level of attributes promised as well as the firm s consistency in delivering on those promises key aspects of our formulation are the explicit consideration of transaction costs and alternative signals of product quality transaction costs are the costs the seller or buyer faces when redeeming a money back guarantee we show that money back guarantees signal quality by exploiting the higher probability of returns for a lower quality product and the attendant higher transaction costs however if the seller s transaction costs are very large then there are less costly ways to signal namely charging a high price we compare the signaling performance of 1 price 2 price with uninformative advertising and 3 price with a money back guarantee whereas uninformative advertising does not work at all in our model under certain conditions a money back guarantee is necessary to signal and under other conditions a money back guarantee is a useful supplement to price

on intertemporal substitution and aggregate labor supply in this paper the author presents an econometric investigation of t he implications of the intertemporal substitution hypothesis for aggregate employment in the united states the tests are based on a version of the hypothesis with time separable preferences on the basis of the evidence produced the hypothesis is quite successful in explaining fluctuations in aggregate employment although almost totally unsuccessful in accounting for fluctuations in employee hours these findings suggest that the hypothesis might have an important role to play in macroeconomic modeling although they contradict attempts to account for aggregate fluctuations solely in terms of continuous competitive equilibrium in labor markets copyright 1987 by university of chicago press

assessing empirical approaches for analyzing taxes and labor supply recent surveys on the labor supply responses of men document a divergence in the estimates of substitution and income effects obtained using various estimation approaches generally studies accounting for nonlinear tax schedules in a static setting via a piecewise linear approach produce estimates that typically imply higher substitution and lower income responses than are suggested by empirical work applying other approaches this paper demonstrates that maximum likelihood estimation of a consumer choice problem with nonlinear budget sets implicitly relies on the satisfaction of inequality constraints that translate into behaviorally meaningful restrictions these constraints arise not as a consequence of economic theory but instead as a requirement to create a properly defined statistical model in the analysis of piecewise linear budget sets the implicit constraints required by maximum likelihood in estimation amount to imposition of slutsky conditions at all wage income combinations associated with kink points in the analysis of differentiable budget sets the tacit constraints invoked by maximum likelihood also involve inequality restrictions on slutsky terms the empirical work presented in this study supports the contention that these implicit constraints play a major role in explaining the discrepancies in estimates found in the literature on men s labor supply

evidence on the volunteer labor supply of married women 1 introduction in this paper i investigate the volunteer labor supply of married women there are dozens of studies that examine the labor supply of married women and a smaller number that investigate the supply of volunteer labor in general as far as i know there are none that have focused on the supply of volunteer labor by married women i analyze time diary data for the 1970s to consider one main question and three subsidiary questions i what was the direct effect of economic variables after tax wage rate and other income on married women s volunteering both participation and hours ii does the number of children in the family influence the volunteering of married women to the extent that rising wages may induce smaller family size is this an indirect channel that reduces volunteering if one of the motivations for volunteering is to increase the quantity or quality of activities for one s own children the 1970s is an especially interesting time period to examine in the united states as that was the decade that saw the first large increases in married women s labor force participation rates iii are time and donations substitutes or complements for married women iv do the data support the brown and lankford 1992 modeling conjecture concerning a sequence of time allocation decisions as opposed to the gronau model of household time allocation where such decisions are made simultaneously gronau 1986 i find that i the volunteer labor supply for married women is positively sloped and inelastic with an estimated wage elasticity of 0 64 rises in the net wage have a small negative effect on married women s participation in volunteer activities a 25 rise in the net wage is associated with a 1 drop in the probability of volunteering there is a small negative other income from assets and husband s earnings elasticity of volunteer labor supply 0 09 so other sources of income mattered for married women s volunteering in the 1970s the effect of other income on married women s volunteer participation is positive ii having more children increases the probability of volunteering but reduces the number of hours volunteered iii donations of time and money appear to be substitutes overall the elasticity of married women s volunteer hours with respect to the tax price of giving is greater than two the participation effect is again negative this result is tentative because the data are not based on tax return information and i lack good information on cash donations iv there is mixed support for the brown and lankford conjecture the finding of a positive wage elasticity of volunteer labor supply is at odds with the opportunity cost of time interpretation of the wage especially as the finding for other income is also negative implying that volunteer hours are an inferior good substitution and income effects would therefore both be in a negative direction as the net wage rises the results with the sequential specification are sensible and easily interpreted but the key parameter estimate does not quite meet conventional standards of statistical significance increased hours of work decrease married women s participation and hours an added test of the sequential model is less favorable the wage findings suggest that rising wages for women caused a reduced incidence of volunteering among married women but if anything increased the hours of volunteering one possible vehicle for this would be the entry of women into professional careers where volunteering is a normal part of the career another possible explanation is that married women with a loose attachment to volunteering stopped volunteering and those married women with greater attachment to volunteering increased their hours commitments to offset the participation effect the link between children and volunteering is important as an indicator of how much selfinterest is involved in volunteering for example school volunteering may be a way of providing enhanced investment in one s own children where the benefit to others is a by product

micro and macro elasticities in a life cycle model with taxes we build a life cycle model of labor supply that incorporates changes along both the intensive and extensive margin and use it to assess the consequences of changes in tax and transfer policies on equilibrium hours of work we find that changes in taxes have large aggregate effects on hours of work moreover we find that there is no inconsistency between this result and the empirical finding of small labor elasticities for prime age workers in our model micro and macro elasticities are effectively unrelated our model is also consistent with other cross country patterns

bounds on elasticities with optimization frictions a synthesis of micro and macro evidence on labor supply how can price elasticities be identified when agents face optimization frictions such as adjustment costs or inattention i derive bounds on structural price elasticities that are a function of the observed effect of a price change on demand the size of the price change and the degree of frictions the degree of frictions is measured by the utility losses agents tolerate to deviate from the frictionless optimum the bounds imply that frictions affect intensive margin elasticities much more than extensive margin elasticities i apply these bounds to the literature on labor supply the utility costs of ignoring the tax changes used to identify intensive margin labor supply elasticities are typically less than 1 of earnings as a result small frictions can explain the differences between micro and macro elasticities extensive and intensive margin elasticities and other disparate findings pooling estimates from existing studies i estimate a hicksian labor supply elasticity of 0 33 on the intensive margin and 0 25 on the extensive margin after accounting for frictions

the labor supply response to mismeasured but predictable wage changes most panel data studies of intertemporal labor supply assume classical measurement error recent validation studies refute this assumption in this study i address nonclassical measurement error explicitly i use data on males from the panel study of income dynamics validation study to purge measurement error from the panel study of income dynamics i find a large amount of predictable wage variation in the data even after allowing for measurement error however there is almost no labor supply response to these predictable wage changes therefore failure to control for nonclassical measurement error cannot explain the low estimated labor supply elasticities in other papers

nonparametric estimation of the impact of taxes on female labor supply this paper proposes a simple extension of nonparametric estimation methods for nonlinear budget set models derived in blomquist and newey 2002 to censored dependent variables the nonparametric method is applied to estimate female labor supply elasticities using data on married women from the 1985 and 1989 waves of the panel study of income dynamics exploiting the substantial variation in budget sets caused by the tax reform act of 1986 as a source of identification the estimated wage elasticities from this new method are 0 56 overall and 0 27 on the intensive margin the income elasticity estimates are close to 0 67 overall and 0 13 on the intensive margin compared with the linear labor supply model the estimated elasticities are usually larger for the nonparametric specifications that account for nonlinear budget sets copyright 2010 john wiley sons ltd

measuring the frictional costs of online transactions the case of a name your own price channel we study the offers submitted by consumers to a large name your own price nyop online retailer a distinctive feature of this retailer is that it allows consumers to repeatedly submit offers on one and the same product while consumers could identify the threshold price the minimum price for which the retailer is willing to sell by incrementing their offer in small steps in each consecutive round such a strategy would require them to go through many additional online transactions we define frictional cost as the disutility that the consumer experiences when conducting an online transaction such as submitting an offer thus in our setting consumers trade off a direct financial value lower price for frictional costs based on a consumer choice model capturing this trade off we use the observed consumer behavior to reconstruct the frictional cost parameters for the consumers in our sample we show that perhaps contrary to the general wisdom frictional costs in electronic markets are substantial with median values ranging from eur 3 54 for a portable digital music player mp3 to eur 6 08 for a personal digital assistant pda we find that consumers who have gathered experience with the nyop channel in previous transactions exhibit lower frictional costs than consumers who use the channel for the first time surprisingly sociodemographic variables do not help to explain the variation in frictional costs

are carbon taxes good for the poor a general equilibrium analysis for vietnam summary we evaluate effects of an environmental tax using a general equilibrium model linked to a household database the burden of the tax applied mainly to energy is passed forward by non tradable industries and backward by tradable industries facing fixed world prices the tax is thus equivalent to a real exchange rate appreciation and since export industries are labor intensive reduces employment and increases poverty especially when labor supply is responsive to wages the use of revenues to increase transfers to households can offset poverty increases but does not create jobs thus the tax will likely conflict with other development policy objectives

money back contracts with double moral hazard we analyze money back contracts in which a seller promises to refund some fraction of the buyer s purchase price if an item is returned as a three stage game in a cooperative first stage the players determine a price and refund share in the second stage they noncooperatively choose inputs the buyer decides whether to return the item in the final stage this process economizes on the information necessary to enforce a contract and serves an incentive function when transactions involve double moral hazard efficient contracts exist when uncertainty is moderate inefficiencies result when there is either insufficient or excessive uncertainty

nonlinear pricing of information goods this paper analyzes optimal pricing for information goods under incomplete information when both unlimited usage fixed fee pricing and usage based pricing are feasible and administering usage based pricing may involve transaction costs it is shown that offering fixed fee pricing in addition to a nonlinear usage based pricing scheme is always profit improving in the presence of nonzero transaction costs and there may be markets in which a pure fixed fee is optimal this implies that the optimal pricing strategy for information goods is almost never fully revealing moreover it is proved that the optimal usage based pricing schedule is independent of the value of the fixed fee a result that simplifies the simultaneous design of pricing schedules considerably and provides a simple procedure for determining the optimal combination of fixed fee and nonlinear usage based pricing the introduction of fixed fee pricing is shown to increase both consumer surplus and total surplus the differential effects of setup costs fixed transaction costs and variable transaction costs on pricing policy are described these results suggest a number of managerial guidelines for designing pricing schedules for instance in nascent information markets firms may profit from low fixed fee penetration pricing but as these markets mature the optimal pricing mix should expand to include a wider range of usage based pricing options minimum fees quantity discounts and adoption levels across the different pricing schemes are characterized strategic pricing responses to changes in market characteristics are described and the implications of the paper s results for bundling and vertical differentiation of information goods are discussed

late career entrepreneurship income and quality of life late career transitions to entrepreneurship are discussed as a promising way to address some of the problematic implications of population aging by extending employment choice theory to simultaneously account for career stage and for non monetary rewards from entrepreneurship we investigate how late career transitions from organizational employment to entrepreneurship influence the returns from the monetary income and non monetary quality of life components of an individual s utility using data from the english longitudinal study of ageing our empirical analysis shows that for late career individuals starting a business is positively associated with change in quality of life and negatively associated with change in income

environmental capital flight and pollution tax this paper analyzes the impacts of a production pollution tax on environmental capital flight and national product in a two country static general equilibrium model with two way foreign investment it is assumed that the capital input in both countries is a composite good of domestic and imported capital and pollution is assumed to originate in the production process the productivity of capital in each country is negatively or positively related to the worldwide aggregate emissions

what has been learned about labor supply in the past twenty years the main advance in the study of labor supply in the past 20 years has come in recognizing and interpreting the variety of different labor supply functions that coexist in the empirical literature a crucial theoretical distinction with important empirical payoff is that between labor supply choices at the extensive margin i e labor force participation and employment choices and choices at the intensive margin i e choices about hours of work or weeks of work for workers another important distinction is the one between a descriptive labor supply function and a structural supply function that can be the basis for out of sample policy investigations concerning responses to tax and welfare programs and evaluations of welfare losses a full understanding of the participation hours dichotomy leads to an appreciation of the importance of the problem of selection bias what is the wage to impute to a nonworking person these distinctions are a legacy of the research conducted on labor supply over the past 20 years many important empirical questions have been addressed i how strong are the effects of taxes welfare and transfer programs on labor supply ii how important is intertemporal substitution can life cycle labor supply models explain business cycle labor supply behavior iii has the consensus view of the 1960 s of high labor supply elasticities for married women and low labor supply elasticities for married men held up all of the empirical evidence assembled on labor supply must be called into question in the light of important research on the basic quality of the data conducted by analysts at the university of michigan i discuss this evidence in a concluding section except for my discussion of measurement issues i focus only on the major discoveries about which a general consensus has emerged

capital income taxation in growing open economies abstract this paper studies how alternative capital mobility assumptions affect the incidence and efficiency of capital income taxation the study uses a two country intertemporal equilibrium model in which imperfectly elastic investment captures the notion of imperfectly mobile physical capital if home goods and foreign goods are perfect substitutes and investment is inelastic the tax effects in open and closed economies are similar only if physical capital is perfectly mobile are capital income taxes completely shifted in small open economies only then and if significant terms of trade effects are absent do open economy efficiency losses substantially exceed the closed economy losses

unilateral climate policy and competitiveness economic implications of differential emission pricing unilateral emission reduction commitments raise concerns on international competitiveness and emission leakage that result in preferential regulatory treatment of domestic energy intensive and trade exposed industries our analysis illustrates the potential pitfalls of climate policy design which narrowly focuses on competitiveness concerns about energy intensive and trade exposed eite branches the sector specific gains of preferential regulation in favour of these branches must be traded off against the additional burden imposed on other industries beyond burden shifting between industries differential emission pricing bears the risk for substantial excess cost in emission reduction as policy concedes too low carbon prices to eite industries and thereby foregoes relatively cheap abatement options in these sectors from the perspective of global cost effectiveness we find that differential emission pricing of eite industries hardly reduces emission leakage since the latter is driven through robust international energy market responses to emission constraints as a consequence the scope for efficiency compared to uniform pricing is very limited only towards stringent emission reduction targets will a moderate price differentiation achieve sufficient gains from leakage reduction to offset the losses of diverging marginal abatement cost

the effects of progressive taxation on labor supply when hours and wages are jointly determined this paper extends a standard intertemporal labor supply model to account for progressive taxation as well as the joint determination of hourly wages and hours worked we show that these two factors can have implications for both estimating labor supply elasticities as well as for using these elasticities in tax analysis failure to account for wage hours ties and progressive taxation may cause the hours response to marginal tax rate changes to be understated by 5 to 30 percent for men

heads i win tails you lose a career analysis of executive pay and corporate performance the paper utilises a novel career perspective to examine managerial theories of organisational control in the context of executive reward principal agent theory managerial power and neo institutionalism are evaluated detailed career histories of boardroom executives in all ftse350 companies between 1996 and 2008 are utilised using both a fixed effects panel and a career based approach rival hypotheses are tested in addition to the payperformance relationship the probability of job loss as a function of performance is also estimated the evidence presented points to the importance of institutional considerations in the standard agency theory and managerial power perspectives and lends support to a social theory of agency the analysis is empirical in nature and an effort is made to draw on qualitative studies to further flesh out the discussion the practical implications of the findings point to the inadequacy of existing arrangements to deliver efficient pay outcomes where performance is poor whilst highlighting dangers of relying on naive policy remedies that ignore the role played by institutional forces in their implementation also highlighted is the distinct advantage of boards adopting a cumulative or career oriented approach when evaluating executive performance from a policy perspective the case is made for truly long term incentives in the form of career shares

environmental awareness consumption and labor supply empirical evidence from household survey data abstract what is the effect of environmental awareness on the households consumption of polluting goods and labor supply decisions we answer this question using household survey data from the united states and measuring environmental awareness with the decision to make environmental donations we find that environmental awareness has a negative and economically significant effect on labor supply the respective impact on the consumption of polluting goods is also negative but less robust in terms of statistical significance our results highlight the importance of understanding the foundations of household behavior related to environmental quality indeed environmentally aware households are willing to tradeoff work hours with improved environmental quality and less so to change their consumption habits

the effects of capital income taxation on international competitiveness and trade flows using an intertemporal equilibrium model this paper analyzes how lower source based taxes on capital income impact trade performance and international competitiveness it shows that depending on import shares and intertemporal and intratemporal substitution elasticities capital accumulation may induce changes in real interest rates and the terms of trade that stimulate domestic saving even if financial capital is perfectly mobile internationally import shares appear important determinants of exchange rate effects numerical simulations illustrate these results copyright 1989 by american economic association

the sensitivity of an empirical model of married women s hours of work to economic and statistical assumptions this study undertakes a systematic analysis of several theoretic and statistical assumption s used in many empirical models of female labor supply using a singl e data set psid 1975 labor supply data the author is able to replic ate most of the range of estimated income and substitution effects fo und in previous studies in this field he undertakes extensive specif ication tests and finds that most of this range should be rejected du e to statistical and model misspecifications the two most important assumptions appear to be the tobit assumption used to control for sel f selection into the labor force and exogeneity assumptions on the wi fe s wage rate and her labor market experience copyright 1987 by the econometric society

intertemporal preferences and labor supply in this paper the authors examine whether nonseparable preference structures ar e important in characterizing life cycle labor supply using longitud inal data on prime age males from the panel study of income dynamics they estimate a model of life cycle leisure and consumption under un certainty in which intertemporal preferences are allowed to be nonsep arable in leisure the model tests several alternative specifications considered in the literature they investigate the robustness of the ir findings to certain forms of population heterogeneity and types of model misspecification across alternative specifications the autho rs find that the standard assumption of intertemporally separable pre ferences for leisure is not consistent with the data copyright 1988 by the econometric society

the effects of in work benefit reform in britain on couples theory and evidence this paper examines the effects of the working families tax credit wftc on couples in britain we develop a simple model of household decisions which explicitly accounts for the role played by the tax and benefit system its main implications are then tested using panel data from the british household panel survey collected between 1991 and 2002 overall the financial incentives of the reform had negligible effects on a wide range of married mothers decisions such as eligible working at least 16 hours per week and full time employment working at least 30 hours per week employment transitions childcare use and divorce rates women s responses however were highly heterogeneous depending on their partners labour supply and earnings mothers married to low income men showed larger responses in employment especially if they had younger children they were more likely to remain in the labour force and had higher rates at which they entered it while more likely to receive the tax credit they also experienced a greater risk of divorce we find virtually no effect for women with higher income husbands likewise there are no statistically significant responses among married men

group buying on the web a comparison of price discovery mechanisms web based group buying mechanisms are being widely used for both business to business b2b and business to consumer b2c transactions we survey currently operational online group buying markets and then study this phenomenon using analytical models we build on the literatures in information economics and operations management in our analytical model of a monopolist offering web based group buying under different kinds of demand uncertainty we derive the monopolist s optimal group buying schedule under varying conditions of heterogeneity in the demand regimes and compare its profits with those that obtain under the more conventional posted price mechanism we further study the impact ofproduction postponement by endogenizing the timing of the pricing and production decisions in a two stage game between the monopolist and buyers our results have implications for firms choice of price discovery mechanisms in e markets and for the scheduling of production and pricing decisions in the presence and absence of scale economies of production

internet based virtual stock markets for business forecasting the application of internet based virtual stock markets vsms is an additional approach that can be used to predict short and medium term market developments the basic concept involves bringing a group of participants together via the internet and allowing them to trade shares of virtual stocks these stocks represent a bet on the outcome of future market situations and their value depends on the realization of these market situations in this process a vsm elicits and aggregates the assessments of its participants concerning future market developments the aim of this article is to evaluate the potential use and the different design possibilities as well as the forecast accuracy and performance of vsms compared to expert predictions for their application to business forecasting after introducing the basic idea of using vsms for business forecasting we discuss the different design possibilities for such vsms in three real world applications we analyze the feasibility and forecast accuracy of vsms compare the performance of vsms to expert predictions and propose a new validity test for vsm forecasts finally we draw conclusions and provide suggestions for future research

the effect of income taxation on labor supply when deductions are endogenous this paper extends the standard static model of labor supply and taxation to the case where people are able to legally avoid taxes through the use of itemized deductions tax deductible expenditures are treated as a hicksian composite good with a price for those who decide to itemize proportional to one minus the marginal tax rate estimation of the commonly used linear labor supply model extended to incorporate the additional composite good on a cross section of prime aged married men suggests that tax deductible consumption is an uncompensated substitute for leisure and complement with labor the impact of taxes through the relative price of deductible expenditures appears to be much stronger than through the net wage copyright 1992 by mit press

product risk sharing by warranties in a monopoly market with risk averse consumers abstract this paper analyzes the implications of three different warranty rules in a monopoly setting with risk averse consumers the necessary condition for the existence of the market is independent of the risk sharing arrangement although the quantity consumed is the highest if the consumer receives no warranty even if the monopolist is constrained to marginal cost pricing the replacement warranty is most efficient from a risk allocation point of view however the situation with no warranty is pareto superior to a money back warranty additionally the producer and the consumers agree on the ranking of the warranty rules

two way capital flows cross hauling in a model of foreign investment this paper presents a simple model of a small open economy which is open to both commodity trade and foreign investment of a sector specific kind and which exhibits the phenomenon of cross hauling or reverse flows of internationally mobile capital in two different sectors the model which assumes that a single domestic factor is combined with internationally mobile but sector specific capital in each of two sectors one of which produces a non traded good appears to be the simplest possible which permits cross hauling as an endogenous phenomenon

what happens when you tax the rich evidence from executive compensation this paper examines the responsiveness of taxable income to changes in marginal tax rates using detailed compensation data on several thousand corporate executives from 1991 to 1995 the data confirm that the higher marginal rates of 1993 led to a significant decline in taxable income indeed this small group of executives may account for as much as 20 percent of the aggregate change in wage and salary income for approximately the one million richest taxpayers over this time period one person alone can account for more than 2 percent the decline however is almost entirely a short run shift in the timing of compensation rather than a permanent reduction in taxable income the short run elasticity of taxable income with respect to the net of tax share exceeds one in this sample but the elasticity after one year is at most 0 4 and probably closer to zero breaking out the tax responsiveness of different types of compensation shows that the large short run responses come almost entirely from a large inc

partial repeat bidding in the name your own price channel this paper presents an initial examination of an emerging business model the name your own price nyop channel as popularized by priceline com focusing on how to optimally structure such market interactions i ask whether it is more profitable to restrict individuals to a single bid as is currently done by priceline or conversely to allow consumers to continue bidding if the previous offer was rejected i find that both market structures yield the same expected profit in practice a single bid policy may not be perfectly enforceable especially in the internet environment because a sophisticated user can circumvent such a policy by camouflaging one s identity or otherwise manipulating the bidding procedure thus priceline s single bid restriction is likely to result in partial repeat bidding the case in which some consumers are limited to a single bid while other sophisticated users may rebid i ask whether such surreptitious bidding is detrimental to the nyop firm and find that profits are lower than if such opportunistic behavior were absent surprisingly i find that the impact of the number of repeat bidders on profits is not monotonic thus if it is prohibitively costly or logistically infeasible for the nyop firm to eliminate surreptitious rebidding behavior the firm may in fact benefit from encouraging rather than discouraging users to rebid the direction that increases profits depends on the percentage of sophisticated bidders

split panel jackknife estimation of fixed effect models we propose a jackknife for reducing the order of the bias of maximum likelihood estimates of nonlinear dynamic fixed effect panel models in its simplest form the half panel jackknife the estimator is just 2 hat theta bar theta 1 2 where hat theta is the mle from the full panel and bar theta 1 2 is the average of the two half panel mles each using t 2 time periods and all n cross sectional units this estimator eliminates the first order bias of hat theta the order of the bias is further reduced if two partitions of the panel are used for example two half panels and three 1 3 panels and the corresponding mles on further partitioning the panel any order of bias reduction can be achieved the split panel jackknife estimators are asymptotically normal centered at the true value with variance equal to that of the mle under asymptotics where t is allowed to grow slowly with n in analogous fashion the split panel jackknife reduces the bias of the profile likelihood and the bias of marginal effect estimates simulations in fixed effect dynamic discrete choice models with small t show that the split panel jackknife effectively reduces the bias and mean squared error of the mle and yields confidence intervals with much better coverage

consumption patterns and self selecting tariffs the authors describe and apply methods for empirically investigating the relation between consumption and tariff choice these methods allow 1 testing of alternative specifications for the relations of tariff choice and consumption patterns 2 estimation of parameters that provide information on the response of customers to marginal prices and fixed fees and 3 a determination of the extent to which the assumptions embodied in welfare results on self selecting tariffs are valid in a particular setting they apply the procedures to residential demand for local telephone service in an area where households are offered a choice among tariffs copyright 1989 by mit press

the incredible shrinking elasticities married female labor supply 1978 2002 this paper demonstrates the extent to which married women s labor supply elasticities have changed over the past quarter century estimates from march current population survey data suggest that these elasticities have decreased substantially by 60 percent for the hours wage elasticity from 0 36 to 0 14 70 percent for the hours income elasticity from 0 053 to 0 015 95 percent for the participation wage elasticity from 0 66 to 0 03 and 60 percent for the participation income elasticity from 0 13 to 0 05 changing demographic characteristics explain little of the drop in these elasticities suggesting that preferences toward work have changed across birth cohorts

biological basics and the economics of the family many economic models of the family are based on a generic person one person two household or parent child family rather than their anatomically correct counterparts sons and daughters fathers and mothers and grandfathers and grandmothers these economic models can offer powerful insights into family behavior but also can leave certain patterns unexplained and neglect potentially important crosscurrents melding biological insights with family economics can cast new light on existing knowledge and open up novel paths for research for example study after study has found that putting family income in the hands of mothers rather than fathers tends to increase the consumption of children as noted in this journal in lundberg and pollak 1996 yet the way such results are usually described might strike a noneconomist as exceedingly circumspect economists point out that these findings reject the common preference model of household decision making in favor of one with independent decisionmaking spouses but usually make little mention of motherhood or fatherhood per se or consider the dramatic expansion of south african government pension programs in the early 1990s which put lots of extra money in the hands of grandparents many of whom lived with their grandchildren in a compelling and oft cited study duflo 2003 found evidence of pension spillovers to grandchildren but the most intriguing patterns were demographic pensions to maternal grandmothers redounded to the benefit of granddaughters economic analysis uncovers the income effects but turns out to be of little help for explaining why these particular gender effects predominated

broadband in the labor market the impact of residential high speed internet on married women s labor force participation the author investigates how high speed home internet use has affected labor supply using an instrumental variables strategy that exploits cross state variation in supply side constraints to reside

the demand for local telephone service a fully discrete model of residential calling patterns and service choices we present an empirical model of households choices among local telephone service options for example between flat rate and measured service and the interrelation of these choices with the number and average duration of local calls households make at each time of day to each geographical zone using a nested logit model with estimation performed on a randomly selected subset of the households calling patterns we calculate elasticities of demand for each local service option number of calls average duration and revenues with respect to the fixed monthly charges and the usage charges for calling under each option we find moderate price elasticities of number of calls with respect to usage charges for households subscribing to measured service nevertheless raising usage charges has a negligible effect on revenues since a sufficient number of households either originally subscribe to flat rate service or convert to flat rate service in response to higher usage charges we find a high elasticity of demandfor each service option with respect to itsfixed monthlyfee this indicates high substitutability among service options the shift among service options induces new calling patterns which wefind to be a small but not negligible indirect effect e most telephone operating companies offer residential customers several options for local service there are two general categories of service flat rate service under which a household can for a fixed monthly charge make an unlimited number of calls within a specified geographical area and measured service for which the household pays a lower fixed monthly fee but can make only a specified number or dollar value of calls at no extra charge after which charges are incurred for additional calls various flat rate services differ in the size of the geographical area in which calling is at no extra charge with higher monthly fees for larger areas measured services differ with respect to the threshold number or dollar value of calls beyond which the customer is charged

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

welfare the earned income tax credit and the labor supply of single mothers during 1984 1996 welfare and tax policy were changed to encourage work by single mothers the earned income tax credit was expanded welfare benets were cut welfare time limits were added and welfare cases were terminated medicaid for the working poor was expanded as were training programs and child care during this same time period there were unprecedented increases in the employment and hours of single mothers we show that a large share of the increase in work by single mothers can be attributed to the eitc and other tax changes with smaller shares for welfare benet cuts welfare waivers training programs and child care programs