declining values and the afternoon effect evidence from art auctions we study the order of sale in art auctions the final bid relative to the auctioneer s estimated price declines throughout the course of an auction a theoretical model shows that in an auction ordered by declining valuation even in the presence of risk neutral strategic bidders the price received relative to the estimate for later items in an auction should be less than the price relative to the estimate for earlier items furthermore ordering heterogeneous items by value maximizes revenue for the auctioneer

sequential auctions price trends and risk preferences abstract we analyze sequential auctions in a general environment where bidders are heterogeneous in risk exposures and exhibit non quasilinear utilities we derive a pure strategy symmetric equilibrium for the sequential dutch and vickrey auctions respectively with an arbitrary number of identical objects for sale when bidders are risk averse preferring the equilibrium price sequences must be downward upward drifting the declining price anomaly is thus evidence of bidder risk aversion in this general environment these results derive from a key assumption that bidders marginal utilities are log supermodular in payment and type

examining the link between energy consumption carbon dioxide emission and economic growth in latin america and the caribbean abstract this study aims at exploring the bi directional long run relationship between energy consumption carbon dioxide emission and economic growth in the latin american and caribbean countries the canonical cointegrating regression ccr is used to achieve the goal of this study taking the period of 1980 2008 the study arrived at different results while 60 of the countries have a positive bi directional long run relationship between energy consumption carbon dioxide emission and economic growth the others have mixed results the results of the study motivated the researcher to recommend that these countries should increase their energy efficiency increase the share of green energy from their total energy use and increase energy conservation in order to reduce unnecessary waste of energy

sequential auctions with informational externalities and aversion to price risk decreasing and increasing price sequences a large body of empirical research has shown that prices of identical goods sold sequentially sometimes increase and often decline across rounds this article introduces a tractable form of risk aversion called aversion to price risk and shows that declining prices arise naturally when bidders are averse to price risk when there are informational externalities there is a countervailing effect which pushes prices to raise along the path of a sequential auction even if bidder s signals are independent the article shows how to decompose the effect of aversion to price risk from the effect of informational externalities

testing for price anomalies in real estate auctions this paper reports on the results of an auction sale of 83 condominium apartment units in new jersey at the auction every unit was hammered down but unknown to the 2 348 registered bidders 40 of the sales fell through prices in the subsequent sale of condominium units in face to face negotiations resulted in identical units selling for 13 less than they fetched at auction and the discount was largest for those units hammered down early in the auction these results are inconsistent with the usual predictions from the theory of common value auctions and suggest that uninformed bidders in this auction may have been the subject of a winner s curse which generated considerable profit for the seller this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from ano this abstract was borrowed from another version of this item

multi item vickrey dutch auctions descending price auctions are adopted for goods that must be sold quickly and in private values environments for instance in flower fish and tobacco auctions in this paper we introduce ex post efficient descending auctions for two environments multiple non identical items and buyers with unit demand valuations and multiple identical items and buyers with non increasing marginal values our auctions are designed using the notion of universal competitive equilibrium uce prices and they terminate with uce prices from which the vickrey payments can be determined for the unit demand setting our auction maintains linear and anonymous prices for the homogeneous items setting our auction maintains a single price and adopts ausubel s notion of clinching to compute the final payments dynamically the auctions support truthful bidding in an ex post nash equilibrium and terminate with an ex post efficient allocation in simulation we illustrate the speed and elicitation advantages of these auctions over their ascending price counterparts

on the causal dynamics between emissions nuclear energy renewable energy and economic growth this paper examines the causal relationship between co2 emissions nuclear energy consumption renewable energy consumption and economic growth for a group of 19 developed and developing countries for the period 1984 2007 using a panel error correction model the long run estimates indicate that there is a statistically significant negative association between nuclear energy consumption and emissions but a statistically significant positive relationship between emissions and renewable energy consumption the results from the panel granger causality tests suggest that in the short run nuclear energy consumption plays an important role in reducing co2 emissions whereas renewable energy consumption does not contribute to reductions in emissions this may be due to the lack of adequate storage technology to overcome intermittent supply problems as a result electricity producers have to rely on emission generating energy sources to meet peak load demand

a note on sequential auctions this note provides an explanation for the declining price anomaly in sequential second price auctions we illustrate how the average winning bids of risk neutral agents bidding for objects with valuations drawn from independent identical distributions are lower in later auctions than in earlier auctions when the objects are not identical we determine the optimal order in which they should be auctioned

the dynamics of natural gas consumption and gdp in bangladesh abstract reserves of natural gas in bangladesh are very large and total demand has increased secularly in recent years this paper examines the causal relationship between the consumption of natural gas and gdp in bangladesh over the period 1980 to 2010 we find that there is a positive unidirectional causality running from gdp to natural gas consumption movements in gdp affect the consumption of natural gas but not vice versa while our results rest on several statistical assumptions they support the pursuit of policies that are in line with energy conservation implementing these policies will be of particular significance in light of the fact that bangladesh s current reserves of natural gas will not meet its current level of consumption demand beyond the next two decades

dynamic pricing behavior in perishable goods markets evidence from secondary markets for major league baseball tickets sellers of perishable goods increasingly use dynamic pricing strategies as technology makes it easier to change prices and track inventory this paper tests how accurately theoretical models of dynamic pricing describe sellers behavior in secondary markets for event tickets a classic example of a perishable good it shows that the simplest dynamic pricing models describe very accurately both the pricing problem faced by sellers and how they behave explaining why sellers cut prices dramatically by 40 percent or more as an event approaches the estimates also imply that dynamic pricing is valuable raising the average seller s expected payoff by around 16 percent

e sourcing in procurement theory and behavior in reverse auctions with noncompetitive contracts one of the goals of procurement is to establish a competitive price while affording the buyer some flexibility in selecting the suppliers to deal with reverse auctions do not have this flexibility because it is the auction rules and not the buyer that determines the winner in practice however hybrid mechanisms that remove some suppliers and a corresponding amount of demand from the auction market are quite common we find that in theory such hybrid mechanisms increase competition and make buyers better off as long as suppliers are willing to accept noncompetitive contracts it turns out that suppliers often do because under a wide variety of conditions these contracts have a positive expected profit our theory relies on two behavioral assumptions 1 bidders in a multiunit uniform price reverse auction will follow the dominant strategy of bidding truthfully and 2 the suppliers who have been removed from the market will accept noncompetitive contracts that have a positive expected profit our experiment demonstrates that bidders in the auction behave very close to following the dominant strategy regardless of whether this auction is a stand alone or a part of a hybrid mechanism we also find that suppliers accept noncompetitive contracts sufficiently often although not always to make the hybrid mechanism outperform the reverse auction in the laboratory as well as in theory

the declining price anomaly abstract data from wine auctions indicate that identical products sold sequentially typically follow a decreasing pattern of prices known as the declining price anomaly this is explained for both first and second price auctions by appealing to risk averse bidders earlier bids are then equal to expected later prices plus a risk premium associated with the risky future price we show that this logic rests on the assumption of nondecreasing absolute risk aversion which is necessary for pure strategy equilibrium bidding functions to exist thus decreasing absolute risk aversion implies ex post inefficiency with positive probability data from wine auctions are used to confirm the existence of the declining price anomaly journal of economic literature classification numbers d43 d44 d81 d82 l81

auctions an introduction abstract this is a detailed introduction to auction theory it begins with a simple analysis of standard auctions and then uses a strikingly simple general solution of symmetric private values auctions to prove the payoff equivalence of many auction rules the basic framework is then modified to admit risk aversion multi unit and repeated auctions as well as collusion then follows an introduction to optimal auctions with and without stochastic entry and to common value auctions and the winner s curse problem the survey closes with a sample of applications from the regulation of natural monopolies to price competition in oligopoly and the government securities market

optimal bidding in auctions from a game theory perspective abstract the game theoretic perspective in auction bidding has provided a powerful normative framework for the analysis of auctions and it has generated an impressive volume of research contributions tracing this research we review key recent advances which have greatly expanded our understanding of the operation of auctions and produced a more accurate analysis of mechanism design and optimal bidding we follow various experimental studies which have shown that the predictive power of auction theory remains in many cases limited for this reason we concentrate on research themes which enhance the applicability of auction theory leading to more realistic descriptions of bidding behaviors we identify important innovations which expand the environment of auction bidding and carry us beyond rational decision making we conclude providing directions of future research and discussing their implications

how auctions work for wine and art interview auctioneers and even to buy a little wine in the meantime i have also had the opportunity with john abowd 1988 to observe and collect data on the auction sale of impressionist and contemporary paintings this paper reports on some of the empirical regularities that i and others have observed in the actual operation of the auction markets for these items in view of the rich and diverse array of theoretical literature on auctions it seems high time economists began to spell out precisely what facts it is meant to explain 2

analysis of south korea s economic growth carbon dioxide emission and energy consumption using the markov switching model abstract recently many countries have been making an effort to reduce their carbon dioxide co2 emission and as part of such effort the united nations framework convention on climate change unfccc adopted the kyoto protocol in 1997 south korea is very likely to be included in the second batch of countries that must reduce their greenhouse gas emission after the end of the implementation of the kyoto protocol in 2012 reducing the country s co2 emission however can have an impact on the economy therefore in this study the correlations between south korea s economic growth co2 emission and energy consumption were analyzed the analysis period was from q1 1991 to q4 2011 and the analysis methods that were used were regression analysis for the relational analysis among the various overall indices and the markov switching model for a more detailed analysis the results of the analyses showed that south korea s economic growth and co2 emission were coincidental the correlation analysis of the country s economic growth and energy consumption showed a significant correlation between economic growth and fossil fuels which emit co2 such as coal in the industrial sector petroleum products in the industrial and transportation sectors and liquefied natural gas lng in the residential commercial and industrial sectors it is expected that the results of this study will pave the way for the conduct of various researches on controlling the country s co2 emission management and for suggestions for such to be given such as policies for reducing the energy consumption in each sector using the methodology proposed in this study

retailers and consumers in sequential auctions of collectibles we analyse an independent private value model where heterogeneous bidders compete for objects sold in sequential second price auctions in this heterogeneous game bidders may have differently distributed valuations and some have multi unit demand with decreasing marginal values retailers others have a specific single unit demand consumers by examining equilibrium bidding strategies and price sequences we show that the presence of consumers leads to more aggressive bidding from the retailers on average and heterogeneous bidders is a plausible explanation of the price decline effect the study of the expected revenue of the seller confirms the interest of auctioneers in inviting different types of bidders nous analysons un modele a valeurs privees independantes dans lequel des encherisseurs heterogenes sont en concurrence pour des objets vendus lors d encheres sequentielles au second prix dans ce jeu heterogene les encherisseurs tirent leurs evaluations de distributions qui peuvent differer et certains les revendeurs ont des demandes multi unitaires avec des evaluations marginales decroissantes alors que les autres les consommateurs ont une demande individuelle specifique l examen des strategies d equilibre et des sequences de prix montrent que la presence de consommateurs conduit en moyenne a des encheres plus agressives de la part des revendeurs et que la presence d encherisseurs heterogenes constitue une explication plausible a la decroissance des prix l etude de l esperance du revenu du vendeur confirme l interet des commissaires priseurs a inviter differentes categories d acheteurs

energy consumption and economic growth evidence from the economic community of west african states ecowas access to modern energy is believed to be a prerequisite for sustainable development poverty alleviation and the achievement of the millennium development goals however theoretical models and empirical results offer conflicting evidence on the relationship between energy consumption and economic growth that we remain largely unsure of the cause and effect nature of this relationship if indeed a relationship exists at all this paper tests in a panel context the long run relationship between energy access and economic growth for fifteen african countries from 1980 to 2008 by using recently developed panel cointegration techniques we adopt a three stage approach consisting of panel unit root panel cointegration and granger causality tests to study the dynamic causal relationships between energy consumption energy prices and growth as well as relationship between electricity consumption prices and growth results show that gdp and energy consumption as well as gdp and electricity move together in the long run by estimating these long run relationships and testing for causality using panel based error correction models we found unidirectional long run and short run causality the causality is running from gdp to energy consumption in the short run and from energy consumption to gdp in the long run there is also evidence of unidirectional causality running from electricity consumption to gdp in the long run this study thus provides empirical evidence of long run and causal relationships between energy consumption and economic growth for our sample of fifteen countries suggesting that lack or limited access to modern energy services could hamper economic growth and compromise the development prospects of these countries

absentee bidders and the declining price anomaly in wine auctions the anomaly is concerned with the observation that in multiple item auctions of identical objects prices tend to decline over time i show that in the case of wine auctions which have been analyzed frequently the anomaly is likely to be caused by the fact that most bids are entered by absentees who use nonoptimal bidding strategies therefore wine auctions can hardly be used to illustrate the standard multiple object auction model

bidding behavior in sequential cattle auctions the objectives of this study are to investigate the institutional speciflcs of sequential cattle auctions and their role as determinants of prices institutional speciflcs are the order of sale according to quality a secret reserve price bidders multi unit demand and difierent types of bidders prices decline and bidders with a higher demand pay on average lower prices the estimation results show that declining prices are caused by the order of sale according to quality and the secret reserve price the results further show that bidders take the strategic efiect of sequential auctions and multi unit demand into account

energy consumption and economic growth nexus in portugal italy greece spain and turkey an ardl bounds test approach 1965 2009 abstract the paper examines the nexus between primary energy consumption and growth in portugal italy greece spain and turkey pigst with annual time series data from 1965 to 2009 pigst are southern european economies which have experienced several episodes that make them of particular interest to the study of periods of economic expansion and stagnation an ardl bounds test approach is a suitable technique to examine energy growth nexus within the context of countries with both sporadic shocks outliers and permanent shocks structural breaks empirical results suggest bidirectional causality between energy and growth in both the long run and short run supporting the feedback hypothesis the results reveal themselves to be robust to panel framework an energy conservation policy will reduce gdp growth while a saving phenomenon is observed since one additional unit of product requires less than one unit of energy

auctions and the price of art the value of most important works of art is established by public auction either directly by an actual sale or indirectly by reference to other sales how the auction system works is thus a critical determinant of how the public s preferences are translated into the evaluation of artistic work the auction system is central in the determination of the incentives for artistic work and the efficiency of the auction system is a key determinant of the cost of creating and distributing works of art this paper contains a review of the burgeoning new research of the last decade that has been designed to shed light on how the art auction system actually works what it indicates about price formation and how well it performs we begin our discussion in section 2 with a short description of the mechanics of the auction system and then organize the remainder of our discussion around two major topics the first topic concerns how auction prices can be used to determine and compare overall price movements within the art market and other markets and the second topic concerns how the auction mechanism influences prices we

sealed bid auction of netherlands mussels statistical analysis this article presents an econometric analysis of the many data on the sealed bid auction that sells mussels in yerseke town the netherlands the goals of this analysis are obtaining insight into the important factors that determine the price of these mussels and quantifying the performance of an individual purchase manager besides a case study the article is a general study on the role of auctions in supply chains and on hedonic price factors

panel estimation for co2 emissions energy consumption economic growth trade openness and urbanization of newly industrialized countries abstract this paper empirically examines the dynamic causal relationships between carbon dioxide emissions energy consumption economic growth trade openness and urbanization for the panel of newly industrialized countries nic using the time series data for the period 1971 2007 using four different panel unit root tests it is found that all panel variables are integrated of order 1 from the johansen fisher panel cointegration test it is found that there is a cointegration vector among the variables the granger causality test results support that there is no evidence of long run causal relationship but there is unidirectional short run causal relationship from economic growth and trade openness to carbon dioxide emissions from economic growth to energy consumption from trade openness to economic growth from urbanization to economic growth and from trade openness to urbanization it is found that the long run elasticity of carbon dioxide emissions with respect to energy consumption 1 2189 is higher than short run elasticity of 0 5984 this indicates that over time higher energy consumption in the newly industrialized countries gives rise to more carbon dioxide emissions as a result our environment will be polluted more but in respect of economic growth trade openness and urbanization the environmental quality is found to be normal good in the long run

learning to bid in sequential dutch auctions abstract we propose an agent based computational model to investigate sequential dutch auctions with particular emphasis on markets for perishable goods and we take as an example wholesale fish markets buyers in these markets sell the fish they purchase on a retail market the paper provides an original model of boundedly rational behavior for wholesale buyers behavior incorporating learning to improve profits conjectures as to the bids that will be made and fictitious learning we analyze the dynamics of the aggregate price under different market conditions in order to explain the emergence of market price patterns such as the well known declining price paradox and the empirically observed fact that the very last transactions in the day may be at a higher price the proposed behavioral model provides alternative explanations for market price dynamics to those which depend on standard hypotheses such as diminishing marginal profits furthermore agents learn the option value of having the possibility of bidding in later rounds when confronted with random buyers such as occasional participants or new entrants they learn to bid in the optimal way without being conscious of the strategies of the other buyers when faced with other buyers who are also learning their behavior still displays some of the characteristics learned in the simpler case even though the problem is not analytically tractable

venture capital financed investments in intellectual capital abstract the paper considers a new company in the it industry founded by a management team and partially financed by venture capital among the questions that the paper addresses are how much venture capital should be acquired to help finance the development of the firm how should a wish to grow with the aim of making a breakthrough in the it area be balanced against the stockholders wish to consume the problem is studied as an optimal control problem with a random time horizon and we derive a series of prescriptions for investment and financial decisions

the energy gdp nexus addressing an old question with new methods abstract this paper reassesses the causal relationship between per capita energy use and gross domestic product while controlling for capital and labour productivity inputs in a panel of 30 oecd countries over the past 40 years the paper uses panel unit root and cointegration testing and specifies an appropriate vector error correction model to analyse the nexus between income and energy use in doing so we contribute to an old debate using modern tools that shed a new light there is some evidence that over the very short run bidirectional causality exists our results also show a strong unidirectional causality running from capital formation and gdp to energy usage in the long run the reverse causality found in recent work is lost we then show that we can reproduce these earlier results in our data if we reproduce a slightly misspecified model for the engle granger two step procedure used in these earlier papers our findings thus imply that results are very sensitive to model misspecification and careful testing of specifications is required our results have some strong policy implications they suggest that policies aimed at reducing energy usage or promoting energy efficiency are not likely to have a detrimental effect on economic growth except over the very short run

environment kuznets curve for co2 emissions a cointegration analysis for china abstract this study examines the long run relationship between carbon emissions and energy consumption income and foreign trade in the case of china by employing time series data of 1975 2005 in particular the study aims at testing whether environmental kuznets curve ekc relationship between co 2 emissions and per capita real gdp holds in the long run or not auto regressive distributed lag ardl methodology is employed for empirical analysis a quadratic relationship between income and co 2 emission has been found for the sample period supporting ekc relationship the results of granger causality tests indicate one way causality runs through economic growth to co 2 emissions the results of this study also indicate that the carbon emissions are mainly determined by income and energy consumption in the long run trade has a positive but statistically insignificant impact on co 2 emissions

analyzing energy consumption and gdp nexus using maximum entropy bootstrap the case of turkey abstract we employ a maximum entropy bootstrap based framework to analyze the energy consumption and real gdp nexus between 1950 and 2006 in turkey our approach provides more accurate inference in comparison to conventional hypothesis tests based on asymptotic theory it also avoids preliminary testing and shape destroying transformations such as differencing and detrending the bivariate analysis as well as a multivariate framework controlling for exchange rate and oil prices shows no evidence of a causal relation our results are robust to both the number of lags and the time period chosen we also perform a cointegration analysis of the data and point out a common misunderstanding in the literature regarding the concept of causation

declining prices in sequential auctions with complete revelation of bids abstract in a sequential auction setting the expected winning prices are shown to decline across two stages when all bids are revealed between the stages the prices decline because bidders desire to hide their private valuation information the hiding also leads to inefficient allocations

bottom fishing and declining prices in sequential auctions abstract we study standard sequential auctions in which the seller chooses the order of sale and right to choose auctions in which the winner chooses her preferred item from the remaining items empirically prices in sequential auctions tend to decline and sellers often hold right to choose auctions in our setting the right to choose format guarantees declining prices and efficiency in the standard auction a buyer may submit a low bid for the first item bottom fishing despite its being her less preferred item an example shows that the standard auction has declining prices is inefficient and gives lower expected revenue than the right to choose journal of economic literature classification numbers d44 d82

sequencing strategies in large competitive ascending price automobile auctions an experimental examination this paper reports on a large scale field experiment testing strategies available to a seller participating in simultaneous competitive sequential ascending price automobile auctions every other week the seller offered approximately 120 vehicles for sale in an auction environment in which several competitive sellers offered on the order of 3 000 vehicles the experiment tested various sequences in which the seller could offer the vehicles such as high values first or low values first surprisingly and contrary to intuition drawn from the theory of single item and single seller auctions the worst performing sequence from those tested is for the seller to order vehicles from highest to lowest values the best sequence is to group the vehicles by type and offer the low valued vehicles first and then move to offer the higher valued vehicles our conjecture is that this sequence reduces the competition with other sellers for the attention of specialized buyers

sequential auctions of stochastically equivalent objects abstract we show that in sequential auctions of a large enough number of stochastically equivalent objects with bounded values prices will on average have a downwards trend

simultaneous allocation of bundled goods through auctions assessing the case for joint bidding we study the costs and benefits of allowing joint bidding in multiple simultaneous first price sealed bid auctions for bundled goods with private values joint bidding raises the prospect of higher allocative efficiency but also reduces the number of bidders resulting in an ambiguous net impact on seller revenue the research was carried out using laboratory experiments in which groups of up to six buyers competed for eight bundles of two separable goods each the main results show that in our experimental environment allowing joint bidding increases efficiency by 11 3 and revenue by 9 4 the research has immediate applications to the sale of public forest stands that arbor a mixture of species for this reason we explore how the results are affected by excess supply the presence of dominant firms and the removal of an allocation rule requiring multiple bidders under certain circumstances

sequential common value auctions with asymmetrically informed bidders we study an in nitely repeated rst price auction with common values we focus on one sidedincomplete information in which one bidder learns the objects value which itself does not change overtime learning by the uninformed bidder occurs only through observation of the bids the proprietaryinformation is eventually revealed and the seller extracts essentially the entire rent for large discountfactors both players pay offs tend to 0 as the discount factor tends to 1 however the uninformed bidderdoes relatively better than the informed bidder we discuss the case of two sided incomplete informationand argue that under a markovian re nement the outcome is pooling as information is revealed onlyinsofar as it does not affect prices

energy consumption and real gdp in g 7 multi horizon causality testing in the presence of capital stock abstract this paper applies two recent time series methods to re examine the causal relationship among energy consumption real gdp and capital stock in g 7 countries these methods the dufour et al 2006 journal of econometrics 132 337 362 multiple horizon causality testing and the hill 2007 journal of applied econometrics 22 747 765 sequential causality testing allow to test for non causality in a multivariate framework and can further reveal the time profile of causal effects the presence of causation delays and the direct or indirect nature of the causal effects given the trending nature of the time series employed we further take into account the presence of structural breaks in the form of trend changes our empirical results show that multi horizon causality testing does uncover crucial information with respect to the dynamic interaction among energy consumption real gdp and capital stock while structural breaks do exist and appear to be critical for causality inference in regard to causality direction we find that real gdp dominates in anticipating energy consumption in g 7 countries

the declining price anomaly in dutch dutch rose auctions in symmetric independent private value auctions of a single object with risk neutral bidders the english second price auction has strategic simplicity it is optimal for bidders to reveal their valuation of the object and make bids accordingly in that case the auction is won by the person with the highest valuation who pays a price equal to the second highest valuation in a dutch first price auction this simplicity vanishes here winning bidders have to pay their bid to make a profit they shade their bids and bid below their valuation of the object somewhat loosely one may state that an english auction is truth revealing whereas a dutch auction requires strategic behavior the simple structure of the one unit english auction vanishes if two identical objects are auctioned sequentially now in the first round it is optimal for bidders to shade their bids to account for the option value of participating in the subsequent second round robert j weber 1983 bidders with a higher valuation also have a higher option value therefore they shade their bids in the first round by a greater amount than do bidders with a lower valuation as the auction proceeds the number of bidders decreases over the sequence of auctions the number of objects decreases as well the first fact has a negative effect on the competition for an object and the second has a positive effect both effects cancel out and prices follow a martingale as a result all gains to waiting are arbitraged away and the expected prices in both rounds are the same the latter result also holds for sequential auctions of more than two objects and does not depend on whether the auction is english or dutch this neat theoretical result is not supported by empirical research which usually finds price declines orley ashenfelter 1989 found a mild price decrease in sequential auctions of identical units of wine mcafee and daniel vincent 1993 also present empirical evidence on sequential wine auctions they found that on average the second unit of wine was sold at a price 1 4 percent lower than the price of the first unit victor ginsburgh 1998 uses data from wine auctions in which the auctioneer acted as an agent for bidders who were not present at the auction he found price declines but apparently the absent bidders entered bids that did not fit with the theory empirical studies by ashenfelter and david genesove 1992 see also jean jacques laffont 1997 and alan beggs and kathryn graddy 1997 concern heterogeneous objects they also detected price declines because of the contradiction between theory and empirical studies the declining price phenomenon is regarded to be an anomaly

sequential auctions with synergies an example abstract an equilibrium in an example of a two unit sequential ascending price auction where some bidders have superadditive values is presented the equilibrium is in pure strategies in equilibrium the expected price declines from the first to the second auction