efficient and durable decision rules with incomplete information we compare six concepts of efficiency for economies with incomplete information depending on the stage at which individuals welfare is evaluated and on whether incentive constraints are recognized an example is shown in which an incentive efficient decision rule may be unanimously rejected by the individuals in the economy we define durable decision rules which can resist such unanimous rejection and show that efficient durable decision rules exist

reduction potentials of energy demand and ghg emissions in china s road transport sector abstract rapid growth of road vehicles private vehicles in particular has resulted in continuing growth in china s oil demand and imports which has been widely accepted as a major factor effecting future oil availability and prices and a major contributor to china s ghg emission increase this paper is intended to analyze the future trends of energy demand and ghg emissions in china s road transport sector and to assess the effectiveness of possible reduction measures a detailed model has been developed to derive a reliable historical trend of energy demand and ghg emissions in china s road transport sector between 2000 and 2005 and to project future trends two scenarios have been designed to describe the future strategies relating to the development of china s road transport sector the business as usual scenario is used as a baseline reference scenario in which the government is assumed to do nothing to influence the long term trends of road transport energy demand the best case scenario is considered to be the most optimized case where a series of available reduction measures such as private vehicle control fuel economy regulation promoting diesel and gas vehicles fuel tax and biofuel promotion are assumed to be implemented energy demand and ghg emissions in china s road transport sector up to 2030 are estimated in these two scenarios the total reduction potentials in the best case scenario and the relative reduction potentials of each measure have been estimated

multiple round timber auction design and simulation this paper presents a multiple round timber auction simulation developed in order to study various configurations of auction design in this study simultaneous sequential timber auctions are modelled and analysed using agent based simulation technology as there are many individual items in the auction to be sold the auction designer defines several rounds that are sequential at pre defined intervals at each round the auction designer announces several simultaneous auctions since bidders are offered different items at each round a mathematical linear programing model for selecting the best set of items to bid for is presented different bidding patterns are simulated and compared in various setup configurations the most advanced of these strategies are adaptive and use agent learning capability the comparisons include the success rate of winning the auction and the winning price per m3 this study suggests an efficient bidding pattern for bidders to bid in order to achieve to their goal and increase their profit similarly in order to increase profit the auctioneer i e the government needs to control several auction parameters including the number of auctions per year the lot size the auction periodicity and the number of bidders this study also suggests parameters configurations that to maximise revenue for the auctioneer

estimation on oil demand and oil saving potential of china s road transport sector national social science foundation of china 12zd059 ministry of education 10gbj013 national natural science foundation of china 71203186 fundamental research funds for the central universities 2010221051 national science foundation for disting

modeling future vehicle sales and stock in china this article presents an updated and upgraded methodology the fuel economy and environmental impacts feei model http www feeimodel org to project vehicle sales and stock in china on the basis of our previous studies the methodology presented has the following major improvements it simulates private car ownership on an income level basis takes into account car purchase prices separates sales into purchases for fleet growth and for replacements of scrapped vehicles and examines various possible vehicle scrappage patterns for china the results show that the sales of private light duty passenger vehicles in china could reach 23 42 million by 2050 with the share of new growth purchases representing 16 28 the total vehicle stock may be 530 623 million by 2050 we compare this study to other publicly available studies in terms of both projection methodology and results a sensitivity analysis shows that vehicle sales are more affected than levels of vehicle stock by the model parameters which makes projecting sales more difficult owing to the lack of reliable input data for key model parameters because it considers key factors in detail the sales and stock projection module of the feei model offers many advantages over previous models and is capable of simulating various policy scenarios

dynamic processes of social and economic interactions on the persistence of inefficiencies an economy with a finite number of agents and a finite number of states is considered an exogenous institutional rule prescribes which moves from one state to another are feasible to each coalition at each time an agent is called to act with some exogenous probability and he chooses a coalition a feasible new state to move the economy to and side payments between the agents in the coalition the setup can be applied to various dynamic processes of social and economic interactions such as legislative bargaining coalition formation or exchange economies whenever agents are unable to write long term contracts but are otherwise unconstrained both in their ability to write arbitrary spot contracts and in their ability to collude there can be long run inefficiencies with cycles or inefficient steady states however when agents are sufficiently patient the initial state from which the process starts plays no role in the long run moreover when there exists an efficient state that is free of negat

the impact of government policy on preference for nevs the evidence from china to reduce gasoline consumption and emissions the chinese government has introduced a series of preferential policies to encourage the purchase of new energy vehicles nevs however enthusiasm for the private purchase of nevs appears to be very low this timely paper addresses the need for an empirical study to explore this phenomenon by identifying purchase motivations of potential nev consumers and examining the impact of government policies introduced to promote nevs in china a questionnaire survey was carried out the acceptance of nevs is measured in three different logistic models the willingness of consumers to purchase nevs the purchasing time and the acceptable price the results showed that financial benefits performance attributes environmental awareness and psychological needs are the four most important factors influencing consumers acceptance of nevs among these performance attributes rather than financial benefits are the most important indicator the moderating effect of government policies to relations between purchasing intention time and price is not strong as respected while the policy implications are clear that the public awareness of government policy functions as a moderator in the process of acceptance these findings could give some hints to the government to make better nev industry policy

fuel taxes an important instrument for climate policy abstract this article shows that fuel taxes serve a very important role for the environment and that we risk a backlash of increased emissions if they are abolished fuel taxes have restrained growth in fuel demand and associated carbon emissions although fuel demand is large and growing our analysis shows that it would have been much higher in the absence of domestic fuel taxes people often assert that fuel demand is inelastic but there is strong research evidence showing the opposite the price elasticity is in fact quite high but only in the long run in the short run it may be quite inelastic which has important implications for policy makers had europe not followed a policy of high fuel taxation but had low us taxes then fuel demand would have been twice as large hypothetical transport demand in the whole oecd area is calculated for various tax scenarios and the results show that fuel taxes are the single most powerful climate policy instrument implemented to date yet this fact is not usually given due attention in the debate

worst case optimal redistribution of vcg payments in multi unit auctions abstract for allocation problems with one or more items the well known vickrey clarke groves vcg mechanism aka clarke mechanism generalized vickrey auction is efficient strategy proof individually rational and does not incur a deficit however it is not strongly budget balanced generally the agents payments will sum to more than 0 we study mechanisms that redistribute some of the vcg payments back to the agents while maintaining the desirable properties of the vcg mechanism our objective is to come as close to budget balance as possible in the worst case for auctions with multiple indistinguishable units in which marginal values are nonincreasing we derive a mechanism that is optimal in this sense we also derive an optimal mechanism for the case where we drop the non deficit requirement finally we show that if marginal values are not required to be nonincreasing then the original vcg mechanism is worst case optimal

world transport energy demand modelling methodology and elasticities abstract this paper presents the international energy agency s iea approach of modelling transport energy demand fuel demand which is not a demand per se is derived whenever possible from the economic activity in the transport sector and not estimated directly ie using one equation or simultaneous equation system in general the transport models employ a two step approach in the first step transport activity the sector s relevant energy service is estimated econometrically in the second step the transport activity projections are then combined with estimates of efficiency improvements car turnover rates and diesel gasoline penetration assumptions in order to arrive at projections of fuel demand the principal advantages of this approach are that the relevant energy services are modelled and that for model simulation efficiency improvements can be dealt with explicitly the effectiveness of economic instruments is a function of the reaction of consumers and businesses to income and price changes an in depth understanding of income and price elasticities of transport demand and transport energy demand is important in order to be able to assess the effectiveness of policies considered the paper also shows the underlying long term income and price elasticities for oecd and non oecd regions

projection of energy use and greenhouse gas emissions by motor vehicles in china policy options and impacts abstract we project the well to wheels wtw and tank to wheels ttw fossil energy use petroleum use and greenhouse gas ghg emissions of the road transport sector in china up to year 2050 and evaluate the effects of various potential policy options with the fuel economy and environmental impacts feei model http www feeimodel org the policies evaluated include 1 vehicle fuel consumption improvements 2 dieselization 3 vehicle electrification and 4 fuel diversification with plausible policy scenarios under the business as usual scenario road transport in china would create 410 520 million metric tons mmt of oil equivalent of ttw oil demand three to four times the current level 28 36 billion gj of wtw energy demand and 1900 2300 mmt of co 2 equivalent of wtw ghg emissions by 2050 the policies in the same order as above are projected to reduce the ttw oil demand by 35 10 29 and 44 and reduce wtw ghg emissions by 34 5 12 and 13 respectively by 2050 this evaluation reveals that the fuel consumption improvement policy could achieve greater benefit in reducing oil use fossil energy use and ghg emissions implications of each policy option are discussed and the uncertainties associated with the policy scenarios are analyzed

collusion and signaling in auctions with interdependent values abstract the standard approach to collusion in auctions posits an uninformed disinterested third party who prior to the auction designs and implements a collusive mechanism in environments where collusion agreements are likely to be both proposed and executed by the involved parties this approach may neglect information leakages from simply a proposal to collude we consider a model of collusion where one informed bidder proposes to another as in es and schummer 2004 we allow for general interdependent values and affiliated signals in contrast to third party modeling approaches collusion is inefficient from both a social perspective except for the case of pure common values and from the perspective of the ring both bidders are better off than without colluding but the surplus extracted from the seller is distributed asymmetrically between the bidders the potential for information leakage from proposing is bad for low types who reveal that they are weak competitors but is advantageous for high types because they are able to signal their strength we identify a so called briber s curse whereby acceptance of a proposal causes the proposer to downgrade her expected value for the object when there is additional competition in the form of bidders outside of the cartel the briber s curse significantly harms cartel profits and raises seller revenues

collusive bidder behavior at single object second price and english auctions models of collusive bidder behavior at single object second price and english auctions are provided the ind ependent private values model is generalized to permit the formulatio n of coalitions and a strategic response by the auctioneer cooperati ve strategies are found to be dominant in these models coalitions of any size are viable and the payoff to each member increases with th e size of the coalition in addition the collusive strategies of the coalition represent a noncooperative equilibrium the optimal respon se of the auctioneer is to establish a reserve price that is a functi on of the coalition s size these and other features of the model are found to be consistent with the essential features of actual behavio r copyright 1987 by university of chicago press

car buyers and fuel economy abstract this research is designed to help researchers and policy makers ground their work in the reality of how us consumers are thinking and behaving with respect to automotive fuel economy our data are from semi structured interviews with 57 households across nine lifestyle sectors we found no household that analyzed their fuel costs in a systematic way in their automobile or gasoline purchases almost none of these households track gasoline costs over time or consider them explicitly in household budgets these households may know the cost of their last tank of gasoline and the unit price of gasoline on that day but this accurate information is rapidly forgotten and replaced by typical information one effect of this lack of knowledge and information is that when consumers buy a vehicle they do not have the basic building blocks of knowledge assumed by the model of economically rational decision making and they make large errors estimating gasoline costs and savings over time moreover we find that consumer value for fuel economy is not only about private cost savings fuel economy can be a symbolic value as well for example among drivers who view resource conservation or thrift as important values to communicate consumers also assign non monetary meaning to fuel prices for example seeing rising prices as evidence of conspiracy this research suggests that consumer responses to fuel economy technology and changes in fuel prices are more complex than economic assumptions suggest the us department of energy and the energy foundation supported this research the authors are solely responsible for the content and conclusions presented

an application of the shapley value to fair division with money the author considers fair division when monetary compensations are feasible and utilities are quasi linear four axioms are discussed individual rationality resource monotonicity population solidarity and the stand alone test the latter views the utility from consuming all the goods as an upper bound on every coalition s actual joint utility under efficiency the four axioms show little compatibility however when the goods have enough substitutability in everyone s preferences the shapley value of the surplus sharing game satisfies all four axioms an example is the optimal assignment of indivisible goods when every agent consumes only one good copyright 1992 by the econometric society

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

transport energy consumption and saving in china abstract at present the global energy consumption of transport sectors is about one third of the total energy consumption of the world such a proportion in china accounts for about 20 over the past decades with the continuous development of china s economy china s energy consumption increases rapidly china became the world s biggest energy consumer in the year of 2009 meanwhile china s transport energy consumption grows greatly and the proportion of the transport terminal energy consumption is expanding considerably recently a number of theoretical methods and technical schemes focusing on china s transport energy consumption and saving were reported in this paper by reviewing the existing reports we discuss and analyze the current status of china s transport energy consumption including four different transport sectors road railway waterway and civil aviation and outline the trend of china s transport energy consumption and the four sectors in addition the technology status of china s energy saving in road railway and waterway transport as well as civil aviation and their development direction are also presented here by analyzing the major development barriers of the technology and policy of china s transport energy saving some related policy suggestions are proposed

exploring the effect of cap and trade mechanism on firm s production planning and emission reduction strategy abstract cap and trade mechanism has a significant effect on firm s production and operation decisions and carbon emissions this study develops a mathematical model to examine the effect of cap and trade mechanism on firm s production planning and emission reduction strategy based on the model the firm s critical production planning decisions such as the optimal production quantity optimal allowance selling price and the maximum profit under the cap and trade mechanism are derived firstly then based on the cost benefit analysis the conditions under which the firm makes the optimal emission reduction strategy between buying carbon allowance from the carbon trading market and conducting low carbon processing are identified the result suggests that when the low carbon processing cost is greater than the potential opportunity benefit the firm is inclined to purchase carbon allowance from the carbon trading market and vice versa finally a numerical analysis is conducted to investigate the effects of relevant factors such as carbon quotas carbon emission rate low carbon processing cost and transaction cost on firm s production and operation decisions the results indicate that under the cap and trade mechanism the transaction cost has a positive effect on allowance selling price the firm s optimal production quantity and maximum profit is positively related to carbon quotas while negatively related to carbon emission rate and low carbon processing cost this research contributes to enrich related literature and knowledge with regard to carbon emissions reduction at the firm level and highlight the critical importance of cap and trade mechanism in reducing carbon emissions

projection of future transport energy demand of thailand the objective of this study is to project transport energy consumption in thailand for the next 20 years the study develops log linear regression models and feed forward neural network models using the as independent variables national gross domestic product population and the numbers of registered vehicles the models are based on 20 year historical data between years 1989 and 2008 and are used to project the trends in future transport energy consumption for years 2010 2030 the final log linear models include only gross domestic product since all independent variables are highly correlated it was found that the projection results of this study were in the range of 54 84 59 05 million tonnes of oil equivalent 2 5 times the 2008 consumption the projected demand is only 61 65 of that predicted in a previous study which used the leap model this major discrepancy in transport energy demand projections suggests that projects related to this key indicator should take into account alternative projections because these numbers greatly affect plans policies and budget allocation for national energy management

shared agents and competition in laboratory english auctions at livestock auctions the same purchasing agent can represent more than one processor repeated multiple unit english auctions are created in a laboratory to measure the impact of shared agents on trade prices under alternative treatments with six and as few as two agents representing six principals treatments are constructed in which the agents either know or do not know quantity for sale and in which there are progressively fewer agents bidding knowledge of quantity for sale can be anticompetitive evolution toward increased market concentration leads to consistent anticompetitive pricing resulting in prices significantly lower than the predicted competitive equilibrium prices

fuel consumption in road transport a comparative study of china and oecd countries abstract energy conservation and emissions reduction have been the focus of the road transport sector due to its energy intensive and air pollution intensive nature it also embodies the imprints of human technological progress this paper compares the energy consumption of the road transport sector in china and oecd countries we used time series and panel data co integration analysis error correction model and dynamic model to study the impacts of the major influencing factors such as income income structure urbanization price and technological advancement on gasoline and diesel consumption in road transport overall china s fuel consumption is influenced mainly by investment government expenditure and demographic changes such as urbanization while the fuel consumption of oecd countries is mainly driven by household final consumption expenditure in the short run and from a dynamic perspective china s fuel consumption is less influenced by its historical consumption than current influencing factors while that of oecd countries is more affected by historical fuel consumption based on the analysis and findings of this study some policy implications are proposed

a critical review of iea s oil demand forecast for china abstract china has a rapidly growing economy with a rapidly increasing demand for oil the international energy agency iea investigated possible future oil demand scenarios for china in the 2006 world energy outlook the debate on whether oil supplies will be constrained in the near future because of limited new discoveries raises the concern that the oil industry may not be able to produce sufficient oil to meet this demand this paper examines the historical relationship between economic growth and oil consumption in a number of countries logistic curve characteristics are observed in the relationship between per capita economic activity and oil consumption this research has determined that the minimum statistical lower bound annual oil consumption for developed countries is 11 barrels per capita despite the increase reported in total energy efficiency no developed country has been able to reduce oil consumption below this lower limit indeed the iea projections to 2030 for the oecd countries show no reduction in oil demand on a per capita basis if this lower limit is applied to china it is clear that the iea projections for china are under estimating the growth in demand for oil this research has determined that this under estimation could be as high as 10 million barrels per day by 2025 if proponents of peak oil such as laherrere campbell and deffeyes are correct about the predicted peak in oil production before 2020 then the implications of this reassessment of china s oil demand will have profound implications for mankind

bribing in first price auctions abstract i study a symmetric 2 bidder ipv first price auction prior to which one bidder can offer his rival a bribe in exchange for the latter s abstention i focus on pure and undominated strategies and on continuous monotonic equilibria equilibria in which the bribing function is continuous and nondecreasing when types are distributed continuously on the unit interval such an equilibrium if it at all exists is necessarily trivial its bribing function is identically zero i provide a sufficient condition for its existence and sufficient conditions for its nonexistence when the minimum type is strictly positive a non trivial equilibrium may exist but it must be pooling i provide a sufficient condition for the existence of such an equilibrium when types are distributed continuously on the unit interval and dominated strategies are allowed a non trivial non pooling equilibrium exists at least under the uniform prior

determinants of china s energy imports an empirical analysis sustained economic growth in china has triggered a surge of energy imports especially oil imports this paper investigates the determinants of china s energy import demand by using cointegraiton and vecm techniques the findings suggest that in the long run growth of industrial production and expansion of transport sectors affect china s oil imports while domestic energy output has a substitution effect thus as the chinese economy industrializes and the automotive sector expands china s oil imports are likely to increase though china s domestic oil production has a substitution effect on imports its growth is limited due to scarce domestic reserve and high exploration costs it is anticipated that china will be more dependent on overseas oil supply regardless of the world oil price

investigating the differences in co2 emissions in the transport sector across chinese provinces evidence from a quantile regression model abstract carbon dioxide co2 emission in china is currently the largest in the world considering that the transport sector it is one of the major contributors its co2 emissions and their main driving factors have become the focus of many scholars however majority of the existing studies usually investigates co2 emissions using the averaging method i e ordinary least squares method in fact the data distribution of socio economic variables is often non normal with the tail having hidden important information in order to overcome the shortcomings of existing research this paper uses a quantile regression approach to explore the main driving forces of the difference in co2 emissions under high medium and low level of development the results show that the effect of economic growth on co2 emissions in the 25th 50th quantile provinces is higher than those in the other quantile provinces due to the differences in fixed asset investment and motor vehicles energy intensity has a similar story owing to different r d funding and r d personnel investments the influences of urbanization in the upper 90th and 75th 90th quantile provinces are higher than those in the other quantile provinces because of the differences in human capital accumulation and patented technology freight turnover produces the same effect which is due to the differences in freight transportation and transport mode however the impacts of passenger turnover in the lower 10th and 10th 25th quantile provinces are the highest in all the quantile provinces therefore in the process of emission reduction the relevant departments should be concerned about the heterogeneous effects of these driving forces on the different quantile provinces rather than adopting the one size fits all approach

development of biodiesel industry in china upon the terms of production and consumption abstract the prices of primary energy have been ineluctably raised up due to the enormous energy consumption in china and the economy suffers a lot from the severe energy shortage therefore the necessity of using renewable energy in china is particularly important biodiesel has become one of the major renewable fuels of biomass energy since china s biodiesel industry just starts at the primary stage improving the production capacity of biodiesel for meeting the soaring on energy demands is more necessary for the sustainable development in china the materials for biodiesel production are various and sufficient in china that indicates china could have a brilliant potentiality in the production capacity of biodiesel however whether such prediction could be true is still needed to be discussion in depth and further for well answering the query the development of biodiesel industry in china has been systematically reviewed upon the terms of production and consumption and three essential aspects how to sufficiently take advantage of such plentiful feedstock for obtaining a satisfied production capacity how to reasonably use such biodiesel in each region and how to scientifically encourage the development of chinese biodiesel industry have been discussed from the review and discussions it can be concluded that the rising china s biodiesel industry is still behind the actual demand asked by 12th five years plan and continuous introduction of capitals is the effective method to a further development meanwhile the development of china s biodiesel industry is highly depended on the raw materials whose sources and production capability are remarkably different in different regions and hence make standards on the quality of biodiesel is essential and crucial to the further development furthermore adjusting tax policies and forcing the application of biodiesel as addition to fossil diesel can effective establish and enlarge the market of biodiesel in china

the impact of the economic crisis and policy actions on ghg emissions from road transport in spain abstract road traffic is the greatest contributor to the carbon footprint of the transport sector and reducing it has become one of the main targets of sustainable transport policies an analysis of the main factors influencing greenhouse gas ghg emissions is essential for designing new energy and environmentally efficient strategies for the road transport this paper addresses this need by i identifying factors which influence the carbon footprint including traffic activity fuel economy and socioeconomic development and ii proposing a methodological framework which uses modified laspeyres index decomposition to analyze the effect of important drivers on the changes in emissions of road transport in spain during the period from 1990 to 2010 the results demonstrate that the country s economic growth has been closely linked to the rise in ghg emissions the innovative contribution of this paper is the special analysis of the changes in mobility patterns and ghg emissions during the economic crisis when for the first time spanish road traffic emissions decreased the reduction of road transport and improved energy efficiency has been powerful contributors to this decrease demonstrating the effectiveness of energy saving measures on the basis of this analysis several tailored policy recommendations have been suggested for future implementation

auctions and bidding a primer maybe the contractor was right to think bid jobs are different but it is more likely that he suffered from too simple a view of what is involved in preparing a competitive bid our analysis will show that even an experienced estimator working in familiar terrain can lose money if he doesn t understand the subtleties of competitive bidding the phenomenon experienced by the painting contractor known as the winner s curse is just one of the surprising and puzzling conclusions that have been turned up by modern research into auctions another is the theoretical proposition supported also by some experimental evidence that for example a sealed bid treasury bill auction in which each buyer pays a price equal to the highest rejected bid would yield more revenue to the treasury than the current procedure in which the winning bidder pays the seemingly higher amount equal to his own bid there are also subtle results that demonstrate the equivalence of such apparently different institutions as the standard sealed bid auction in which the auctioneer seller sells the goods to the highest bidder for a price equal to his bid and the dutch auction in which the auctioneer seller begins by asking a high price and gradually lowers the price until

green logistics and national scale economic indicators evidence from a panel of selected european countries abstract the objective of the study is to examine the impact of logistics performance indices on national scale economic indicators i e energy environment and economic health in a panel of 27 european countries over a period of 2007 2014 the results show that logistics performance index in terms of timeliness significantly increases gdp per unit of energy use health expenditures and per capita income where as logistics index in terms of infrastructure increases renewable energy source and decreases carbon emissions logistics index for customs processes significantly associated with the less energy prices while logistics index for tracking and trace consignments substantially increases fossil fuel energy consumption logistics competence index have a differential impact on environment on one hand it substantially reduce the burden of fossil fuel energy consumption while on the other hand it s significantly increases carbon emissions logistics international shipments increase fossil fuel energy in a region industry value added and fdi inflows both increases energy prices fossil fuel energy health expenditures and per capita income whereas trade openness decreases energy prices and increases carbon emissions energy efficiency and per capita income the results conclude that logistics indices significantly linked with the national scale economic indicators that provoke for the green supply chain management in the region

collusion and the choice of auction auctions are used in many different markets including the leasing of a substantial fraction of the natural resources in the united states the procedures used in the auctions conducted by the federal government have been a continuing source of controversy one of the concerns has been the possibility of collusion among bidders this article shows that cartels are stable if the seller uses open ascending bid oral auctions but not if he uses sealed high bid auctions this may help to explain the frequent use of sealed high bid auctions

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

the rebound effect some empirical evidence from india abstract the present paper looks at the effect of technical efficiency gains on energy use in three sectors in india at varying levels of aggregation high positive rebound implies that efficient technology unless supplemented by appropriate pricing policy will not be successful in containing demand however the main purpose of the paper is to focus on the unique mechanism of rebound that may occur in developing countries with unmet demand

urban attributes and wage disparities in brazil a multilevel hierarchical model fontes g g simoes r f and hermeto camilo de oliveira a m urban attributes and wage disparities in brazil a multilevel hierarchical model regional studies this paper examines the effects of urban scale and productive structure on individual wage levels in brazilian cities and metropolitan areas in 1990 and 2000 the estimation through hierarchical linear models enabled the inclusion of variables in different levels individual and urban and the decomposition of total wage variance the results showed significant and huge wage disparities among workers who share similar personal attributes but live in different regions of the country in addition the disparities persisted from 1990 to 2000 finally the results provided evidence that local economic and labour market factors played an important role in wage determination

analyzing co2 emissions from passenger cars in europe a dynamic panel data approach abstract road transport accounts for 92 per cent of co2 emissions from all transport services and car transport makes the largest contribution to the total we examine the dynamic relationship between car co2 emissions in western european union countries eu 13 with the dieselization of the passenger vehicle fleet technological progress fuel efficiency mobility indicator economic activity and motorization rate we take advantage of a panel data set of 13 eu countries between 1990 and 2015 and estimate a dynamic panel data dpd model using alternative econometric methods this approach allows us to estimate the effect on car co2 emissions of induced indirect channels involving the reaction of economic agents to changes in aforementioned explanatory variables we provide evidence that co2 emissions have been benefited from global technological progress and changes in average fuel efficiency while increases of economic activity motorization rate and the dieselization process hold positive and significant relationship with car co2 emissions these results are consistent with alternative model specifications and econometric methods

auction design and favoritism abstract the theory of auctions has ignored the fact that often auction designers not the principal design auctions in a multi attribute auction the auction designer may bias his subjective evaluation of quality or distort the relative weights of the various attributes to favor a specific bidder an ancient concern in the procurement of weapons in the auctioning of government contracts and in the purchase of electricity by regulated power companies the paper analyzes the steps to be taken to reduce the possibility of favoritism it is first shown that in the absence of favoritism quality differentials among firms are more likely to be ignored if the auction designer has imperfect information about the firm s costs second if the auction designer may collude with only one bidder the other bidders should be chosen if they are at least as efficient as the former bidder and no hard information about quality differentials is released by the auction designer that would justify fair discrimination in favor of the former bidder last if the auction designer can collude with any bidder the optimal auction tends to a symmetric auction in which quality differentials are ignored the possibility of favoritism reduces the auction designer s discretion and makes the selection process focus on non manipulable monetary dimensions of bids

bounds on revenue distributions in counterfactual auctions with reserve prices measuring auction revenues under counterfactual reserve prices or formats requires knowledge of distributions of bidders values and private signals this poses a challenge when bids are observed from rst price common value auctions i bound counterfactual revenue distributions without imposing parametric restrictions on the model structure using data from u s municipal bond auctions i nd rst price and second price auctions under optimal reserve prices lead to little improvement in revenues over existing rst price formats the number of bidders has a more signi cant impact on revenues in optimal auctions i also nd invoking an incorrect assumption of private values in counterfactual analyses results in small errors in predicting revenues from optimal sp auctions

structural econometric analysis of descending auctions since vickrey s 1961 paper the theory of auctions has considerably expanded particularly over the last decade see e g milgrom 1985 1986 and mcafee and mcmillan 1987 for recent surveys in contrast except for some experimental work only a few empirical studies have attempted to validate the new theoretical auction models using field auction data two approaches have emerged the first has concentrated upon testing some implications of the theory of auctions using reduced form econometric models with observed bids as the explained variables explanatory variables might then be the reservation price the number of potential bidders when observed and some characteristics of the auctioned object examples are hansen 1985 1986 hendricks et al 1987 and hendricks and porter 1988 the second approach which is structural has a long tradition in econometrics starting from the work of the cowles commission this approach is followed in this paper the basic idea is simple and relies upon