econometric estimation of foresight tax policy and investment in the united states we develop a method for measuring the foresight agents have we first dichotomize an agent s information at current date t into knowledge up to date t 1 f and expectations after t 1 f we then form a residual based test statistic that allows us to compare prediction errors for econometric models based on different values of f we illustrate the method examining investment around tax reforms to measure the foresight firms have about tax policy in this illustration current investment appears to reflect currently available information but little foresight other than foresight of enacted policy changes

interpreting economic time series this paper explores some of the implications for econometric practice of the principle that people s observed behavior will change when their constraints change in dynamic contexts a proper definition of people s constraints includes among them laws of motion that describe the evolution of the taxes they must pay and the prices of the goods that they buy and sell changes in agents perceptions of these laws of motion or constraints will in general produce changes in the schedules that describe the choices they make as a function of the information that they possess until very recently received dynamic econometric practice ignored this principle the practice of dynamic econometrics should be changed so that it is consistent with the principle that people s rules of choice are influenced by their constraints this is a substantial undertaking and involves major adjustments in the ways that we formulate estimate and simulate econometric models

spectrum auction designs and revenue variations this study examines a sample of 93 national 3g spectrum auctions for the period 2000 2011 to identify the sources of substantial revenue variations an implied reduced form econometric model that recognises the censored nature of the sample relates per capita winning bid per mhz per million populations values to regulator determined auction design characteristics auction competitiveness mobile wireless market conditions and spectrum package attributes identified from tender documents the analysis reveals that among other factors all auction design characteristics independently impact on realized 3g spectrum auction revenues

industrial pollution in economic development the environmental kuznets curve revisited abstract using new international data this paper tests the environmental kuznets curve ekc hypothesis for industrial water pollution we measure the effect of income growth on three determinants of pollution the share of industry in national output the share of polluting sectors in industrial output and end of pipe eop pollution intensities per unit of output in the polluting sectors we find that the industry share of national output follows a kuznets type trajectory but the other two determinants do not when combined our results imply rejection of the ekc hypothesis for industrial water pollution it rises rapidly through middle income status and remains roughly constant thereafter

reputation and prices on the e market evidence from a major french platform we use an exhaustive data set from one of france s largest e commerce platforms priceminister com to estimate a statistical causal effect of a seller s reputation rating and size on transaction prices we go beyond the results currently available by tackling the issue of seller unobserved heterogeneity and the dynamics of reputation in price equations we can also produce results for a large range of product categories books cds video games or dvds product conditions used or new and seller types individual or professional sellers our results show large scale empirical evidence of a significant positive and strong effect of seller reputation on prices

taxes on tax exempt bonds implicit tax rates priced in the cross section of municipal bonds are approximately two to three times as high as statutory income tax rates with implicit tax rates close to 100 using retail trades and above 70 for interdealer trades these implied tax rates can be identified because a portion of secondary market municipal bond trades involves income taxes after valuing the tax payments market discount bonds which carry income tax liabilities trade at yields around 25 basis points higher than com parable municipal bonds not subject to any taxes the high sensitivities of municipal bond prices to tax rates can be traced to individual retail traders dominating dealers and other institutions the issue of how taxes affect asset prices is an important issue in finance accounting and economics in theoretical models examining the effect of taxes

finite lifetimes and the effects of budget deficits on national saving abstract even though realistic deficit policies shift sizable tax burdens to future generations the assumption of an infinite horizon is a good approximation for analyzing a deficit s short run saving effect on individuals who are neither liquidity constrained nor myopic recent u s experience casts significant doubt on these assumptions however and appears difficult to reconcile with the ricardian equivalence proposition that the timing of taxes does not affect national saving recent deficits have coincided with reduced national saving and a substantial increase in the share of gnp devoted to consumption

market transparency adverse selection and moral hazard we study the eects of improvements in market transparency on ebay on seller exit and continuing sellers behavior an improvement in market transparency by reducing strategic bias in buyer ratings led to a significant increase in buyer valuation especially of sellers rated poorly prior to the change but not to an increase in seller exit when sellers had the choice between exiting a reduction in adverse selection and improved behavior a reduction in moral hazard they preferred the latter because of lower cost increasing market transparency improves on market outcomes

managing online auctions current business and research issues the internet s computational power and flexibility have made auctions a widespread and integral part of both consumer and business markets though online auctions are a multi billion dollar annual activity with a growing variety of sophisticated trading mechanisms scientific research on them is at an early stage this paper analyzes the current state of management science research on online auctions it develops a broad research agenda for issues such as the behavior of online auction participants the optimal design of online auctions the integration of auctions into the ongoing operation of firms and the use of the data generated by online auctions to inform future trading mechanisms these research areas will draw from applied and theoretical work spanning management science economics and information systems

how valuable is a good reputation a sample selection model of internet auctions on the online auction site ebay by convention sellers do not ship goods to winning bidders until after they have received payment so there is an opportunity for sellers to take advantage of bidders trust realizing this the designers of ebay created a system that relies on self enforcement using reputation several recent studies have found that bidders give little or no reward to sellers who have better reputations i show that in fact sellers are strongly rewarded for the first few reports that they have behaved honestly but marginal returns to additional reports are severely decreasing

consumer response to the timing of income evidence from a change in tax withholding in 1992 the income tax withholding tables were adjusted so that withholding was reduced a typical worker received an extra 28 80 in take home pay per month in march through december 1992 to be offset by a lower tax refund in 1993 the change in withholding amounted to 0 5 percent of gdp president bush who proposed this change in his state of the union address intended that it provide a temporary stimulus to demand but the policy change involved only the timing of income so under the life cycle permanent income model it would be predicted to have a negligible effect on consumption and aggregate demand this paper reports consumers responses to the change in withholding the results are based on a survey taken shortly after it went into effect forty three percent of consumers report spending the extra take home pay substantially more than the zero percent predicted by the standard models but substantially less than the one hundred percent upon which the policy was predicated the decision to save the income is not explained by expected income growth therefore while behavior of many households is not fully consistent with the life cycle permanent income model liquidity constraints do not appear to account for this behavior this abstract was borrowed from another version of this item

revisions in utilization adjusted tfp and robust identification of news shocks this paper documents large revisions in a widely used series of utilization adjusted total factor productivity tfp by fernald 2014 and shows that these revisions can materially affect empirical

permanent and transitory movements in labor income an explanation for excess smoothness in consumption many have argued that if labor income is difference stationary the permanent income hypothesis predicts that consumption should be relatively volatile in u s aggregate data labor income is well characterized as having a unit root however consumption turns out to be relatively smooth this anomaly is known as deaton s paradox i resolve deaton s paradox by providing decompositions of labor income into permanent and transitory components these preserve the univariate dynamic properties of labor income however when agents distinguish permanent and transitory movements in their labor income as the rational expectations hypothesis asserts they should the permanent income hypothesis correctly predicts the observed smoothness in consumption

economic insights from internet auctions this paper surveys recent studies of internet auctions four main areas of research are summarized first we survey several studies that document and attempt to explain the frequently observed sniping or last second bidding behavior in these auctions second we summarize several methods proposed to quantify the distortions caused by asymmetric information in these markets most notably due to the winner s curse third we explore research about the role of reputation mechanisms installed to help combat these distortions finally we discuss what internet auctions have to teach us about auction design

marginal tax rates and income new time series evidence this paper estimates the dynamic effects of marginal tax rate changes on income reported on tax returns in the united states over the 1950 2010 period after isolating exogenous variation in average marginal tax rates in structural vector autoregressions using a narrative identification approach i find large positive effects of tax cuts in the top 1 of the income distribution in contrast to earlier findings based on tax return data i also find large effects in other income percentile brackets a hypothetical tax reform cutting marginal rates only for the top 1 leads to sizeable increases in top 1 incomes and has a positive effect on real gdp there are also spillover effects to incomes outside of the top 1 but top marginal rate cuts lead to greater inequality in pre tax incomes

tax disturbances and real economic activity in the postwar united states abstract this paper investigates the macroeconomic effects of cyclical fluctuations in marginal tax rates it finds that systematically including tax variables in a standard real business cycle model substantially improves the model s ability to reproduce basic facts about postwar u s business cycle fluctuations in particular modeling fluctuations in personal and corporate income tax rates increases the model s predicted relative variability of hours and decreases its predicted correlation between hours and average productivity fluctuations in tax rates produce large substitution effects that alter the leisure labor supply decision

cooperation among strangers with limited information about reputation abstract the amount of institutional intervention necessary to secure efficiency enhancing cooperation in markets and organizations in circumstances where interactions take place among essentially strangers depends critically on the amount of information informal reputation mechanisms need transmit models based on subgame perfection find that the information necessary to support cooperation is recursive in nature and thus information generating and processing requirements are quite demanding models that do not rely on subgame perfection on the other hand suggest that the information demands may be quite modest the experiment we present indicates that even without any reputation information there is a non negligible amount of cooperation that is however quite sensitive to the cooperation costs for high costs providing information about a partner s immediate past action increases cooperation recursive information about the partners previous partners reputation further promotes cooperation regardless of the cooperation costs

stock prices news and economic fluctuations comment beaudry and portier 2006 propose an identification scheme to study the effects of news shocks about future productivity in vector error correction models vecms this comment shows that when applied to their vecms with more than two variables the identification scheme does not have a unique solution the problem arises from a particular interplay of cointegration assumptions and longrun restrictions jel e32 e44 g12 g14 in a highly influential paper beaudry and portier 2006 estimate vector error correction models vecms on us data and find that shocks generating a stock market boom but no contemporaneous movement in total factor productivity tfp henceforth called tfp news are closely related to shocks driving long run variations in tfp moreover these tfp news shocks lead to increases in consumption investment output and hours on impact and constitute an important source of business cycle fluctuations these results run counter to basic dynamic stochastic general equilibrium models and have sparked a new literature attempting to generate news driven positive comovement among macroeconomic aggregates 1 this comment shows that in the vecms with more than two variables estimated by beaudry and portier 2006 their identification scheme fails to determine tfp news yet these higher dimension systems are crucial to quantify the business cycle effects of tfp news 2 the identification problem arises from the interplay of two assumptions first the beaudry portier identification scheme called bp restrictions from here on requires that one of the nonnews shocks has no permanent impact on either tfp or consumption second the vecms estimated by beaudry and portier 2006 impose that tfp and consumption are cointegrated this cointegration means that tfp and consumption have the same permanent component which makes one

cyclical factor utilization abstract we introduce procyclical labor and capital utilization as well as costs of rapidly increasing employment into a business cycle model plausible variations in factor utilization enable us to explain observed variability of real gnp with considerably smaller economy wide disturbances the costs of adjustment create very interesting and realistic lead and lag relationships employment does not peak until a full quarter after output workweeks effort capital utilization and productivity all sharply lead the business cycle

nonstandard bidder behavior in real world auctions empirical work on auctions has found that bidders deviate from standard behavior in important ways we investigate a range of these behaviors including nonrational herding auction fever quasi endowment effect and escalation of commitment our innovations are to more completely control for unobservables by using new data from a field experiment on ebay and by accounting for censoring of bids below the starting price consistent with standard auction theory and in contrast to the predictions of the nonstandard behaviors we find that auction starting price has no effect on bidder willingness to pay in a private values setting we conclude that there is little evidence that these nonstandard behaviors are important in the field

measuring the impact of fiscal policy in the face of anticipation a structural var approach empirical estimates of the impact of government spending shocks disagree on central issues such as the size of output multipliers and the responses of consumption and the real wage one explanation for the disagreement is that fiscal shocks are often anticipated due to misspecification of the information set anticipation effects may invalidate svar estimates of impulse responses we use economic theory to derive a fiscal svar estimator that is applicable when fiscal shocks are anticipated we study its properties and apply it to us data we fail to find evidence that anticipation effects overturn the existing findings from the fiscal svar literature despite years of intensive research the empirical literature on fiscal policy has yet to reach consensus on the macroeconomic impact of fiscal policy shocks disagreements concern central issues such as the size of output multipliers and the impact of government spending shocks on consumption and the real wage clearly such level of disagreement constrains our ability to give simple guidelines for the operation of one of the most important stabilisation policies a key empirical obstacle is the measurement of innovations to fiscal policy one strand of the literature employs structural vector autoregressive svar methods and achieves identification based on the presence of decision lags or sign restrictions

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

investment specific news shocks and u s business cycles we provide robust evidence that news shocks about future investment specific technology ist constitute a significant force behind u s business cycles positive ist news shocks induce comovement that is raise output consumption investment and hours these shocks account for 70 of the business cycle variation in output hours and consumption and 60 of the variation in investment and have played an important role in 9 of the last 10 u s recessions our findings provide strong support for shifting focus to ist news shocks when investigating the role of news in driving u s business cycles

dispute resolution or escalation the strategic gaming of feedback withdrawal options in online markets many online markets encourage traders to make good after an unsatisfactory transaction by offering the opportunity to withdraw negative reputational feedback in a dispute resolution phase motivated by field evidence and guided by theoretical considerations we use laboratory markets with two sided moral hazard to show that this option contrary to the intended purpose produces an escalation of dispute the mutual feedback withdrawal option creates an incentive to leave negative feedback independent of the opponent s behavior to improve one s bargaining position in the dispute resolution phase this leads to distorted reputation information and less trust and trustworthiness in the trading phase buyers who refuse to give feedback strategically even when it comes at a personal cost mitigate the detrimental impact it is also mitigated in markets with one sided moral hazard and a unilateral feedback withdrawal option the supplementary appendix is available at https doi org 10 1287 mnsc 2017 2802 t

a survey of recent empirical work concerning auctions in this paper the authors survey some recent empirical work concerning auctions first outlining two complementary approaches to the empirical analysis of auctions and then discussing several recent developments in the econometric analysis of field data concerning auctions

the reaction of household consumption to predictable changes in social security taxes the key implication of rational expectations and the basic life cycle permanent income hypothesis that predictable changes in income have no effect on the growth rate of consumption expenditures is examined this implication is important for understanding the effectiveness and optimal timing of fiscal policy the causes and propagation of business cycles and the effects of income fluctuations on the growth rate of the economy using household level consumption data from the consumer expenditure survey whether expenditures on nondurable goods increase contemporaneously with predictable changes in social security tax withholding is tested it is found that households do change their consumption expenditures in response to the predictable fluctuations in income induced by the social security tax system

the impact of auction characteristics on prices of agricultural products traded online evidence from cherries this article provides an empirical study on the relationship between auction characteristics and prices using a data set on cherry sales from the online auction site yahoo kimo using three alternative measures of the dependent variable results indicate that reputation variables have a statistically important association with auction prices the extent of reputation s impact on prices varies substantially depending on the model specification and estimation technique the article highlights the effectiveness of a nonlinear specification for both measuring and interpreting the underlying reputation variables the use of a buy it now option size and country of the origin is correlated with prices at statistically significant levels several econometric concerns regarding the empirical modeling strategy are discussed

government policy to reduce pollution emissions within the overlapping generations model this article develops an overlapping generations model with multiple categories of capital the importance of this article is in its ability to analyse changes in the distribution of various categories of capital along the growth path of the economy economic growth is accompanied by capital growth as well as increase in pollution emissions implementing a government policy to reduce pollution emission would change the equilibrium path of capital distribution within the model the government builds a corporate tax function that defines the tax rate as a function of a desired pollution level the tax rate decreases as the desired pollution level is higher when the desired pollution level is higher than the actual pollution level production is subsidized and pollution levels rise an example and a simulation are presented in order to confirm the theoretical results and demonstrate that the model can be used for empirical analysis

using stock returns to identify government spending shocks this article explores a new approach to identifying government spending shocks which avoids many of the shortcomings of existing approaches the new approach is to identify government spending shocks with statistical innovations to the accumulated excess returns of large us military contractors this strategy is used to estimate the dynamic responses of output hours consumption and real wages to a government spending shock we find that positive government spending shocks are associated with increases in output hours and consumption real wages initially decline after a government spending shock and then rise after a year we estimate the government spending multiplier associated with increases in military spending to be about 1 5 over a horizon of 5 years

can news be a major source of aggregate fluctuations a bayesian dsge approach we examine whether the news shocks as explored in beaudry and portier 2004 can be a major source of aggregate fluctuations for this purpose we extend a dynamic stochastic general equilibrium model a la christiano eichenbaum and evans 2005 by allowing news shocks on the total factor productivity and estimate the model using bayesian methods estimation results on the japanese and u s economies show that 1 the news shocks play an important role in business cycles 2 a news shock with a longer forecast horizon has larger effects on nominal variables and 3 the overall effect of the total factor productivity on hours worked becomes ambiguous in the presence of news shocks

quantifying tax effects under policy foresight abstract studies of tax effects make the conventional information assumption that changes in period t taxes become known at t legislative lags however imply that news arrives before tax changes take place under policy foreknowledge the conventional information structure is therefore misspecified simulations of a standard neoclassical growth model suggest that foresight of only one quarter can distort substantially the estimates of tax effects obtained under the no foresight assumption also it is crucial to model capital and labor taxes separately anticipated changes in these two tax policies have opposite effects on consumption investment labor and output before policy realization

price quality and reputation evidence from an online field experiment we examine the link between price quality seller claims and seller reputation in internet auctions after purchasing actual baseball cards and having them professionally graded we find that some buyers in the online graded market are misled by incredible claims of quality they pay higher prices but do not receive better quality and in fact are defrauded more often online seller reputation is effective for identifying good faith sellers but conditional on completed auctions reputable sellers do not provide better quality evidence also suggests that high claim sellers target less experienced buyers we attribute these patterns to two loopholes in the ebay rating system we benefited from the comments of austan goolsbee raphael thomadsen john shea dan vincent david reiley larry ausubel peter cramton v joseph hotz jeff smith jimmy chan vincent crawford mark duggan and attendees at numerous seminars and conferences we are particularly grateful to seth sanders and john list for their constructive advice at the early stage of the research to timothy bresnahan rachel kranton and thomas hubbard for their detailed suggestions in reshaping earlier versions and to editor ariel pakes and two anonymous referees for their careful readings special thanks to eight friends who acted as our agents in purchasing baseball cards in retail markets and to numerous sports card store owners who shared their insights on the sportscard industry excellent research assistance from randy alexander moore and krzysztof fizyta is gratefully acknowledged any remaining errors are ours

fiscal foresight and information flows news or foresight about future economic fundamentals can create rational expectations equilibria with non fundamental representations that pose substantial challenges to econometric efforts to recover the structural shocks to which economic agents react using tax policies as a leading example of foresight simple theory makes transparent the economic behavior and information structures that generate non fundamental equilibria econometric analyses that fail to model foresight will obtain biased estimates of output multipliers for taxes biases are quantitatively important when two canonical theoretical models are taken as data generating processes both the nature of equilibria and the inferences about the effects of anticipated tax changes hinge critically on hypothesized information flows different methods for extracting or hypothesizing the information flows are discussed and shown to be alternative techniques for resolving a non uniqueness problem endemic to moving average representations

government investment and fiscal stimulus effects of government investment are studied in an estimated neoclassical growth model the analysis focuses on two dimensions that are critical for understanding government investment as a fiscal stimulus implementation delays for building public capital and expected fiscal adjustments to deficit financed spending implementation delays can produce small or even negative labor and output responses to increases in government investment in the short run anticipated fiscal adjustments matter both quantitatively and qualitatively for long run growth effects when public capital is insufficiently productive distorting financing can make government investment contractionary at longer horizons

arbitrage across borders why itunes gift cards sell above face value on ebay i introduction firms that operate internationally often charge different prices for the same product in different countries these price differences may be due to cost differences exchange rate fluctuations and or price discrimination where firms set prices based on consumers willingness to pay for the product there is an extensive literature on international price differences but nearly all of this research has focused on physical goods where arbitrage the situation where someone buys the product from a low price country and resells it to someone in a high price country tends to be relatively costly because of transaction costs including search costs and transportation costs there have been no empirical papers in the economics literature thus far on the arbitrage of downloadable goods this paper looks at the case of itunes which sells downloadable music videos books ipad and iphone applications and other content worldwide and shows how the sale of itunes gift cards above face value on the auction website ebay is linked to the arbitrage of itunes products itunes which is operated by apple first started selling music downloads in 2003 and by 2008 it was the largest music retailer in the united states and the world 1 people typically purchase products from their own country specific itunes stores but not all content is available in all countries due in part to licensing restrictions and consumer preferences e g itunes does not sell music movies and tv shows in many countries prices also vary across countries as detailed in section iii of this paper one can easily switch to any other country s itunes store with just a few mouse clicks in particular the u s store would seem to be a natural focal point and it tends to have lower prices and a wider selection however in order to actually purchase something from the u s store one needs to have either a u s credit card or a u s itunes gift card available in denominations ranging from 10 to 100 in the primary market through apple and its authorized sellers such as wal mart and best buy as such it can be surmised that some individuals outside the united states may be willing to purchase itunes gift cards on ebay in order to gain access to the u s store it should be noted that itunes terms and conditions specify that the u s store s products are available only to buyers in the united states we can see the evidence for this through the sale of itunes gift cards on ebay nearly 200 itunes gift cards are sold daily on ebay about 10 of all gift cards and more than half of these itunes gift cards sell above face value a phenomenon that is unusual among gift cards after discussing some background information and related literature this paper examines more than 1 300 ebay transactions in february 2011 and finds that itunes gift cards targeted to international buyers which are often sent electronically are more likely to have higher prices controlling for seller reputation shipping charges and other variables this indicates that non u s buyers are willing to pay a premium for the gift cards because they are unable to obtain them otherwise information about the buyers countries allows us to see whether it is the u s store s greater product availability or its lower prices that buyers are interested in this paper addresses an important issue because of the rising popularity of the sales of downloadable content worldwide this market includes music videos books video games and applications the internet has also made it easier for buyers and sellers in different countries to find one another and in the case of digital products exchange goods if arbitrage is widespread firms may decide to either minimize price differences between countries stop selling in low price countries altogether or use the legal system or other methods to prevent arbitrage in terms of the big picture this issue has implications for social welfare copyright enforcement and international trade policies and governments in some countries may also be concerned if their citizens have access to goods that are banned

the macroeconomic effects of distortionary taxation abstract prescott 1986 estimates that technology shocks account for 75 of the fluctuations in the postwar u s economy this paper reestimates the contribution of technological change for a standard business cycle model that includes a public sector and fiscal disturbances i find that a significant fraction of the variance of aggregate consumption investment output capital stock and hours of work can be explained by disturbances in labor and capital tax rates and government consumption i also use the model to quantify the welfare costs of capital and labor taxation for both the time series and welfare calculations maximum likelihood estimates of taste technology and policy parameters are used

consumers experts and online product evaluations evidence from the brewing industry abstract the growth of the internet has led to a dramatic increase in the number of consumer or user product ratings which are posted online by individuals who have consumed a good and are available to other individuals as they make decisions about which products to purchase these ratings have the potential to substantially improve the match between products and consumers however the extent to which they do so likely depends on whether the ratings reflect actual consumer experiences this paper evaluates one potential source of bias in consumer ratings mimicry of the reviews of experts using a rich dataset on consumer product ratings from the brewing industry and a regression discontinuity empirical framework i show that expert reviews influence consumer ratings consumer ratings fall in response to negative expert reviews and increase in response to positive expert reviews the results are most pronounced for strongly negative or strongly positive expert reviews this mimicry limits the extent to which information on product quality from actual consumer experiences diffuses to the population i suggest that nudges could be implemented to limit the extent to which mimicry affects ratings

anticipation learning and welfare the case of distortionary taxation we study the impact of anticipated fiscal policy changes in the ramsey economy when agents form expectations using adaptive learning we extend the existing framework by distortionary taxes as well as elastic labour supply which makes agents decisions non predetermined but more realistic we detect that the dynamic responses to anticipated tax changes under learning have oscillatory behaviour moreover we demonstrate that this behaviour can have important implications for the welfare consequences of fiscal reforms

dynamic effects of permanent and temporary tax policies in a q model of investment abstract this paper incorporates the tax policy analysis of hall and jorgenson into a dynamic optimizing model with adjustment costs to develop a q model of investment this framework is particularly useful for analyzing the dynamic effects on investment of permanent and temporary changes in tax policy it is shown that contrary to the conventional intertemporal substitution argument a temporary investment tax credit need not be nore expansionary than a permanent investment tax credit the role of depreciation allowances in determining the dynamic response of investment to temporary changes in the tax rate is also investigated

pennies from ebay the determinants of price in online auctions this paper presents an exploratory analysis of the determinants of prices in online auctions for collectible united states one cent coins at the ebay web site starting with an initial data set of 20 000 auctions we perform regression analysis on a restricted sample of 461 coins for which we obtained estimates of book value we have three major findings first a seller s feedback ratings reported by other ebay users have a measurable effect on her auction prices negative feedback ratings have a much greater effect than positive feedback ratings do second minimum bids and reserve prices have positive effects on the final auction price in particular minimum bids appear only to have a significant effect when they are binding on a single bidder as predicted by theory third when a seller chooses to have her auction last for a longer period of days this significantly increases the auction price on average

pollution the cost of public funds and endogenous growth abstract theories of endogenous growth are used to investigate the effect of environmental policy on the rate of economic growth and the provision of public goods in a second best market outcome pollution gives rise to a negative environmental externality and is modeled as an inevitable by product of production the government faces the dual task of on the one hand internalising environmental externalities and on the other hand raising public funds to finance public spending a tougher environmental policy reduces the rate of economic growth improves environmental quality raises the optimal tax rate and changes the composition of public spending away from productive government spending towards public consumption and abatement the marginal cost of public funds falls rises if productive government spending is negligible substantial relative to public consumption and abatement

successfully selling accommodation packages at online auctions the case of ebay austria in this era of e commerce online auctions have emerged as a valuable distribution channel nissanoff 2006 werthner ricci 2004 displaying low entry and exit barriers but also vast coverage rates online auctions may effectively augment the distribution potential of hotel businesses this paper identifies those factors that positively affect the final price level obtained in online auctions for hotel room vouchers based on data gathered at ebay comprising 53 406 auctions linear structural equation modelling sem was conducted to identify significant relationships between auction characteristics and the obtained final price for hotel room vouchers by drawing on these results and through an example of the austrian ebay platform selling strategies for successfully listing accommodation packages at online auctions are proposed

the behavior of inexperienced bidders in internet auctions i introduction as has now been documented in many studies the internet auction market has quickly become a thriving marketplace in the united states the market is dominated by ebay in the second quarter of 2007 alone ebay users posted a total of 559 million listings resulting in gross merchandise value the total amount that all goods sold for of 14 46 billion 1 this impressive success has occurred despite the fact that bidders face substantial risks because of the nature of the market sellers by convention do not send goods to winning bidders until after they have received payment the seller can then simply pocket the money or send an item of poor quality a widespread and widely publicized example of this behavior occurred in 2002 when a seller with a history of over 6 000 properly conducted transactions sold hundreds of porcelain collectibles on 4 january 2002 but did not send the winners anything after receiving payments of about 300 000 2 a consumer who is defrauded by a seller has little recourse because the identity of a seller is known only through an e mail address which can be anonymously obtained 3 to solve this problem rather than formally enforcing contracts ebay has established an innovative reputation system which allows winning bidders to post ratings of sellers actions that are publicly viewable and vice versa the ratings are classified as positive neutral or negative this information is also presented as a feedback rating that is equal to the number of positive reports received from unique trading partners minus the number of negative reports received from unique trading partners 4 potential bidders can use this information to form expectations about how the seller will behave in the future and reward sellers who develop good reputations by bidding more and more often in their auctions the seller s benefits to a good reputation can come in two forms an auction can be more likely to attract bidders and thus result in a sale and bidders can be willing to bid larger amounts most studies do find that auctions are more likely to end in a sale if the seller is more reputable however the results regarding the amount by which bids increase as the seller s reputation improves have been quite mixed some find that bid amounts increase substantially as the seller s reputation improves some find extremely small increases in bid amounts and some find no increase in bid amounts at all 5 the prevalence of studies that show very small changes in bidder behavior as the seller s reputation improves has led to an apparent consensus that the returns to reputation in internet auctions are indeed quite small for example in the september 2007 issue of the journal of economic literature macleod 2007 refers to bajari and hortacsu s survey and notes that the results are rather consistent mikhail i melnik and james alto 2002 paul resnick and richard zeckhauser 2002 and luis cabral and hortacsu 2004 all find that there is a positive relationship between price and quality of the seller s reputation however the overall effect appears to be small despite this consensus recent studies favor the hypothesis that there is a significant increase in bid amounts as the seller s reputation improves melnik and aim 2005 find that the returns to an improved seller reputation increase when there is more uncertainty about product quality livingston 2005 shows that sellers are strongly rewarded for the first few reports that they have behaved honestly but marginal returns to additional reports are severely decreasing he notes that other studies may have found small increases in bid amounts because they typically assume that the relationship between the price and the number of positive reports received by the seller is linear or log linear if marginal returns to reputation are severely decreasing these functional forms may only pick up the small returns that occur after an initial reputation is established

identification and estimation in non fundamental structural varma models the basic assumption of a structural vector autoregressive moving average svarma model is that it is driven by a white noise whose components are uncorrelated or independent and can be interpreted as economic shocks called structural shocks when the errors are gaussian independence is equivalent to non correlation and these models face two identification issues the first identification problem is static and is due to the fact that there is an infinite number of linear transformations of a given random vector making its components uncorrelated the second identification problem is dynamic and is a consequence of the fact that even if a svarma admits a non invertible moving average ma matrix polynomial it may feature the same second order dynamic properties as a varma process in which the ma matrix polynomials are invertible the fundamental representation the aim of this paper is to explain that these difficulties are mainly due to the gaussian assumption and that both identification challenges are solved in a non gaussian framework if the structural shocks are assumed to be instantaneously and serially independent we develop new parametric and semi parametric estimation methods that accommodate non fundamentalness in the moving average dynamics the functioning and performances of these methods are illustrated by applications conducted on both simulated and real data

effects of minimum bid increments in internet auctions evidence from a field experiment i study the role of minimum bid increments mbi in internet auctions using natural field experiment data from a finnish online auction site huuto net internet auctions are typically viewed as secondprice implying truthful bidding however due to the presence of the mbi equilibrium bidding behavior involves bid shading i sell otherwise identical gift cards while varying the mbi and test between truthful bidding and bid shading truthful bidding is rejected consistently with equilibrium behavior bid shading increases as the mbi increases this implies that real world bidders are capable of reacting rationally even to seemingly small variations in their strategic environment this version september 17 2015 replaces the february 15 2013 version this abstract was borrowed from another version of this item

the dynamics of seller reputation evidence from ebay we construct a panel of ebay seller histories and examine the importance of ebay s reputation mechanism we find that when a seller first receives negative feedback his weekly sales rate drops from a positive 7 to a negative 7 subsequent negative feedback ratings arrive 25 more rapidly than the first one and don t have nearly as much impact as the first one we also find that a seller is more likely to exit the lower his reputation is and that just before exiting sellers receive more negative feedback than their lifetime average we consider a series of theoretical models and measure them against these empirical results regardless of which theoretical model best explains the data an important conclusion of our paper is that ebay s reputation system gives way to noticeable strategic responses from both buyers and sellers

market set up in advance of federal reserve policy rate decisions textabstractthis paper considers the uncertainty associated with upcoming federal open market committee fomc announcements and the extent to which participants in the fed funds futures market prepare for such announcements before they actually occur we demonstrate that markets set up well in advance of known announcement days going back as far as six months prior to an fomc meeting as a result there is often less variation in fed funds futures prices in the period immediately preceding an fomc announcement despite greater volume of activity as the market has already incorpo rated anticipated signals we find that macro announcements and central bank officials speeches and congressional testimony are of comparable importance in addition while macro announcements have stronger effects when they are released during the fed s blackout period congressional testimony is more important when it coincides with days when important macro variables are released

what are the effects of fiscal policy shocks we propose and apply a new approach for analyzing the effects of fiscal policy using vector autoregressions specifically we use sign restrictions to identify a government revenue shock as well as a government spending shock while controlling for a generic business cycle shock and a monetary policy shock we explicitly allow for the possibility of announcement effects i e that a current fiscal policy shock changes fiscal policy variables in the future but not at present we construct the impulse responses to three linear combinations of these fiscal shocks corresponding to the three scenarios of deficit spending deficit financed tax cuts and a balanced budget spending expansion we apply the method to us quarterly data from 1955 to 2000 we find that deficit financed tax cuts work best among these three scenarios to improve gdp with a maximal present value multiplier of five dollars of total additional gdp per each dollar of the total cut in government revenue 5 years after the shock copyright 2009 john wiley sons ltd

reputation formation and the evolution of cooperation in anonymous online markets theoretical propositions stressing the importance of trust reciprocity and reputation for cooperation in social exchange relations are deeply rooted in classical sociological thought today s online markets provide a unique opportunity to test these theories using unobtrusive data our study investigates the mechanisms promoting cooperation in an online auction market where most transactions can be conceived as one time only exchanges we first give a systematic account of the theoretical arguments explaining the process of cooperative transactions then using a large dataset comprising 14 627 mobile phone auctions and 339 517 dvd auctions we test key hypotheses about the effects of traders reputations on auction outcomes and traders motives for leaving feedback our statistical analyses show that sellers with better reputations have higher sales and obtain higher prices furthermore we observe a high rate of participation in the feedback system which is largely consistent with strong reciprocity a predisposition to unconditionally reward or punish one s interaction partner s cooperation or defection and altruism a predisposition to increase one s own utility by elevating an interaction partner s utility our study demonstrates how strong reciprocity and altruism can mitigate the free rider problem in the feedback system to create reputational incentives for mutually beneficial online trade

news shocks and business cycles abstract this paper proposes and implements a novel structural var approach to the identification of news shocks about future technology the news shock is identified as the shock orthogonal to the innovation in current utilization adjusted tfp that best explains variation in future tfp a favorable news shock leads to an increase in consumption and decreases in output hours and investment on impact more suggestive of standard dsge models than of recent extensions designed to generate news driven business cycles though news shocks account for a significant fraction of output fluctuations at medium frequencies they contribute little to our understanding of recessions

has fiscal policy helped stabilize the postwar u s economy abstract in this paper i consider whether postwar fiscal policy has helped stabilize the u s economy i do this by adding to the stochastic growth model fiscal policy feedback rules estimated from postwar data these rules allow fiscal policies to respond to current and lagged output and labor hours i use the estimated policy rules to see if postwar fiscal policy reduces output volatility and or lengthens expansions and shortens recessions i find that fiscal policy in general provides little stability on either count i also find that the endogenous feedback links by themselves can provide some stabilization

learning from the crowd regression discontinuity estimates of the effects of an online review database internet review forums increasingly supplement expert opinion and social networks in informing consumers about product quality however limited empirical evidence links digital word of mouth to purchasing decisions we implement a regression discontinuity design to estimate the effect of positive yelp com ratings on restaurant reservation availability an extra half star rating causes restaurants to sell out 19 percentage points 49 more frequently with larger impacts when alternate information is more scarce these returns suggest that restaurateurs face incentives to leave fake reviews but a rich set of robustness checks confirm that restaurants do not manipulate ratings in a confounding discontinuous manner

empirical evidence on the impact of reserve prices in english auctions we study the impact of reserve prices on the revenue of english auctions using a unique hand collected database of virtual football players from the online football management game hattrick as theoretically predicted setting a reserve price entails a trade off between the cost of setting it too high and having the good go unsold and the benefit associated with a higher revenue should the reserve price successfully extract surplus from the highest bidder overall we find the net benefit of setting a higher reserve price to be negative regardless of the value of the reserve price this is a novel result insofar as previous literature has generally found an insignificant or positive effect of the reserve price on unconditional auction revenue

the response of household consumption to income tax refunds a central implication of the life cycle or permanent income theory is that consumption should not respond to predictable fluctuations in income tests of this implication have yielded mixed results especially on micro data angus deaton 1992 martin browning and annamaria lusardi 1996 in large part this might be due to the difficulties of isolating the predictable component of income at the micro level most tests proceed by instrumenting for income but since the available instruments are typically poor such tests might be prejudiced against finding significant excess sensitivity of consumption to income john shea 1995 also it is not clear how closely the resulting econometric predictions of income coincide with agents actual expectations of income to avoid these difficulties this paper examines the response of household consumption to a particular type of income that is both predictable and transitory income tax refunds since a refund depends on events in the previous calendar year it is predictable income as regards consumption in the year of its receipt consequently under the life cycle theory consumption should not increase on receipt of a refund 2 in addition to testing the canonical model of consumption this paper provides estimates interpretable as the marginal propensity to consume mpc out of refunds since federal tax refunds now amount to over 80 billion per year averaging well over 1 000 per refund these estimates are of interest in themselves more generally they bear on the impact of even preannounced and temporary changes in fiscal policy the paper begins by surveying related studies in section i section ii describes the data the consumer expenditure survey cex which of the leading u s micro data sets has the most comprehensive coverage of expenditure the empirical specification is set out in section hi section iv reports the results and section v concludes

identifying vars based on high frequency futures data abstract using the prices of federal funds futures contracts we measure the impact of the surprise component of federal reserve policy decisions on the expected future trajectory of interest rates we show how this information can be used to identify the effects of a monetary policy shock in a standard var this alternative approach to identification is quite different and we argue more plausible than the conventional identifying restrictions we find that a usual recursive identification of the model is rejected as is any identification that insists on a monetary policy shock having an exactly zero effect on prices contemporaneously we nevertheless agree with the conclusion of much of the var literature that only a small fraction of the variance of output can be attributed to monetary policy shocks

competing trade mechanisms and monotone mechanism choice abstract we investigate the choice between posted prices and auctions of competing sellers with private valuations assuming that buyers face higher hassle costs in auctions we show the existence of monotone pure strategy equilibria where sellers offer posted prices rather than auctions if and only if they have a sufficiently high reservation value posted prices sell with lower probability but yield a larger revenue in case of trade using an empirical strategy to compare revenues of posted prices and auctions that takes selling probabilities explicitly into account we find our theoretical predictions supported by data from ebay auctions on ticket sales for the euro 2008 european football championship

the effects of information and competition on racial discrimination evidence from a field experiment abstract we study racial discrimination by simultaneously selling identical products on ebay in pairs of auctions posted under different racially identifying names we detect significant price differences which are indicative of in group biases white names receive higher prices for distinctively white products and black names receive higher prices for distinctively black products but price differences only emerge for sellers who have low ebay feedback scores in less competitive markets because the price differences dissipate as sellers accumulate credible reputations the patterns in the data are indicative of statistical discrimination overall the results suggest that mechanisms designed to reduce informational asymmetries and increased competition are both effective at reducing discrimination in online auctions

noisy fiscal policy abstract this paper investigates the macroeconomic effects of fiscal policy in a setting in which private agents receive noisy signals about future shocks to government expenditures we show how to empirically identify the relative weight of news and noise shocks to government spending and compute the level of noise for canada the uk and the us we then investigate the quantitative implications of imperfect fiscal policy information using a medium scale dsge model we find that when the government seeks to implement a persistent change in expected public spending the existence of noise as estimated using actual data implies a sizable difference in fiscal multipliers compared to the perfect fiscal foresight case

tax reform and adjustment costs the impact on investment and market value this paper provides an effective tax rate measure that is valid in the presence of adjustment costs and anticipated tax changes and a measure of the impact of tax changes on market value that may be decomposed into the effects on discounted pure profits and normal returns to capital changes in the value of capital may in turn be decomposed further into changes in the marginal value of new capital and changes in the relative value of new and existing capital these new measures are used to evaluate tax changes similar to those introduced by the recent u s tax reform copyright 1989 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

buyer behavior under the best offer mechanism a theoretical model and empirical evidence from ebay motors abstract we use data from ebay best offer listings to analyze haggling over prices in transactions with one seller and a series of potential buyers for a limited supply product we characterize this transaction mechanism as a sequential move game to investigate buyer behavior our model suggests that a buyer s offer price increases in relations to the number of buyers who have previously made an offer on the item and the buy it now price chosen by the seller on the other hand the offer price decreases for items which have been listed on ebay for a longer period of time we empirically test our theoretical predictions using data on the sales of toyota camry cars on ebay motors the empirical evidence is consistent with our model

the determinants of price in 3g spectrum auctions this article examined the empirical relationship between prices paid for national 3g wireless licenses when spectrums were sold by auction the reduced form modelling approach was based on the prem

the cost of air pollution abatement using data from the u s census bureau the authors have developed comprehensive estimates of pollution abatement costs by industry sector for several major air pollutants their results provide conservative benchmarks for benefit cost analysis of pollution control strategies in developing countries they also provide striking evidence of inefficiency in u s command and control regulation the cost estimates reflect the experience of about 100 000 u s manufacturing facilities under actual operating conditions they are based on a complete accounting of costs including capital labor energy materials and services so they should be more useful for benefit cost analysis than idealized engineering estimates but they also reflect strict pollution control regulation and input prices which are probably somewhat higher on average than those in developing countries they should be interpreted as conservative estimates for environmental planning in developing countries regulatory options that are judged to have high net benefits using these numbers would probably look even better if local abatement cost data were available the estimates in this paper can provide useful information for pollution charges they can also help make targeted regulation more cost effective with scarce resources for monitoring and enforcement new regulatory institutions in developing countries will want to focus initially on industry sectors that are the main sources of locally dangerous pollutants after those sectors are identified targeted regulation should be informed by sectoral differences in abatement cost the estimates suggest for example that cost effective control of suspended particulate emissions will focus on wood pulping rather than steelmaking when both are major sources of suspended particulates the reason average particulate abatement costs are four times higher in steelmaking

search and choice in online consumer auctions price dispersion in simultaneous online auctions is a puzzle in light of the relatively low search costs required to find the lower price much of this price dispersion appears to be due to a lack of switching by bidders between auctions which in turn could be due to inertia related to search costs we identify some of the influencing factors through a controlled field experiment involving pairs of simultaneous auctions keeping the sellers and the goods sold identical between two auctions we vary auction design features between and within pairs including shipping cost open reserve secret reserve price and duration and we provide bidders with incentives to search we use a choice model that examines individual choice between pairs of simultaneous auctions we find that within pair price dispersion is substantial and that prices and auction choice by bidders are indeed related to search costs we find strong inertia in auction choice and find that this effect significantly interacts with time left in the auction although individuals do not always choose a lower priced auction they are more likely to do so when search costs are low or search incentives are high

on the sources of information about latent variables in dsge models abstract latent variables are ubiquitous in macroeconomics and structural models are often used to characterize and estimate them from empirical data this paper addresses the problem of identifying the key sources of information with respect to latent variables in dynamic stochastic general equilibrium models to that end i show how to evaluate the information content of a set of observable variables with respect to a given latent variable the methodology enables researchers to measure and compare the informational contribution of different observables and identify the most informative ones thus it provides a framework for a rigorous treatment of such issues which are often discussed in an informal manner in the literature the methodology is illustrated with an assessment of the informational importance of asset prices with respect to news shocks in the business cycle model developed by schmitt grohe and uribe 2012

an overlapping generations model of growth and the environment this article analyzes the potential conflict between economic growth and the maintenance of environmental quality in an overlapping generations model short lived individuals make decisions which have long lasting effects on both factor productivity and the environment the model provides a theoretical explanation of observed correlations between environmental quality and income whereby economic growth is associated first with declines then improvements in environmental quality it suggests circumstances in which multiple pareto ranked steady state equilibria may arise and in which sustained growth of both capital and environmental quality may occur overmaintenance of the environment analogous to dynamically inefficient overaccumulation of capital may emerge copyright 1994 by royal economic society

mechanism choice and the buy it now auction a structural model of competing buyers and sellers a striking feature of many online sales platforms is the coexistence of multiple sales mechanisms items on ebay for instance are frequently offered through auctions posted prices and buy it now auctions in this article i study how this mechanism multiplicity influences the welfare of buyers and sellers i specify and estimate a structural model of mechanism choice in online markets in which i consider both sides of the market on the demand side buyers choices among available listings are equilibrium outcomes of an entry game on the supply side sellers make equilibrium decisions when choosing sales mechanisms and prices i estimate this model using data from sales of baseball tickets on ebay and calculate consumer and seller rents in three markets the actual market with all three sales mechanisms and two counterfactual markets with auctions and fixed prices or only fixed price listings respectively i find that the addition of auctions to fixed price markets hurts sellers and risk averse buyers but benefits risk neutral buyers additionally the consumer surplus increases when buy it now auctions are offered but the seller surplus is reduced further i discuss the intuition for the cause of this result

government spending entry and the consumption crowding in puzzle this article documents empirically that net firm entry robustly rises after a u s government spending expansion we use this new finding to test the empirical validity of various model features that have been proposed to generate consumption crowding in after positive expenditure shocks endogenous entry models typically fail to generate the observed joint increase in consumption and entry model features that dampen the wealth effect such as rule of thumb households or complementarity between labor and consumption in preferences tend to reduce entry we show that utility or productivity enhancing public spending can reconcile the model with our documented fact and performs well empirically

precautionary bidding in auctions we analyze bidding behavior in auctions when risk averse buyers bid for a good whose value is risky we show that when the risk in the valuations increases dara bidders will reduce their bids by more than the appropriate increase in the risk premium ceteris paribus buyers will be better off bidding for a more risky object in first price second price and english auctions with affiliated common interdependent values this precautionary bidding effect arises because the expected marginal utility of income increases with risk so buyers are reluctant to bid so highly we also show that precautionary bidding behavior can make dara bidders prefer bidding in a common values setting to bidding in a private values one when risk neutral or cara bidders would be indifferent thus the potential for a winner s curse can be a blessing for rational dara bidders

vickrey auctions in practice from nineteenth century philately to twenty first century e commerce william vickrey 1961 proposed an auction mechanism in which bidders submit sealed bids and the highest bidder wins the good in return for payment of the second highest bid amount for decades economists have credited vickrey with inventing this auction format and have believed that the vickrey auction is rarely used in practice this paper presents evidence that vickrey auctions have long been the predominant auction format for mail sales of collectible postage stamps stamp auctioneers developed this auction format on their own as early as 1893 even before vickrey was born

arriving in time estimation of english auctions with a stochastic number of bidders we develop a new econometric approach for the estimation of second price ascending bid auctions with a stochastic number of bidders our empirical framework considers the arrival process of new bidders as well as the distribution of bidders valuations of objects being auctioned by observing the timing of bidder arrival the model is identified even when the number of potential bidders is stochastic and unknown the relevance of our approach is illustrated with an empirical application using a unique dataset of art auctions on ebay our results suggest a higher impact of sellers reputation on bidders valuations than previously reported in cross sectional studies but the impact of reputation on bidder arrival is largely insignificant interestingly a seller s reputation impacts not only the actions of the bidders but the actions of the seller as well in particular experience and a good reputation increase the probability of a seller posting items for sale on longer lasting auctions which we find inc

the winner s curse reserve prices and endogenous entry empirical insights from ebay auctions internet auctions have recently gained widespread popularity and are one of the most successful forms of electronic commerce we examine a unique data set of ebay coin auctions to explore the determinants of bidder and seller behavior we begin by documenting a number of empirical regularities in our data set of ebay auctions next we specify and estimate a structural econometric model of bidding on ebay using our parameter estimates from this model we measure the extent of the winner s curse and simulate seller revenue under different reserve prices