education poverty and terrorism is there a causal connection the paper investigates whether there is a connection between poverty or low education and terrorism we review evidence on hate crimes which are closely related to terrorism the occurrence of hate crimes is largely independent of economic conditions we analyze data on support for attacks against israeli targets from public opinion polls conducted in the west bank and gaza strip support for violent attacks does not decrease among those with higher education and higher living standards the core contribution of the paper is a statistical analysis of the determinants of participation in hezbollah militant activities having a living standard above the poverty line or a secondary or higher education is positively associated with participation in hezbollah we also find that israeli jewish settlers who attacked palestinians in the west bank in the early 1980s were overwhelmingly from high paying occupations although our results are tentative and exploratory they suggest that neither poverty nor education has a direct causal impact on terrorism

on the existence of pure strategy monotone equilibria in asymmetric first price auctions we establish the existence of pure strategy equilibria in monotone bidding functions in first price auctions with asymmetric bidders interdependent values and affiliated one dimensional signals by extending a monotonicity result due to milgrom and weber 1982 we show that single crossing can fail only when ties occur at winning bids or when bids are individually irrational we avoid these problems by considering limits of ever finer finite bid sets such that no two bidders have a common serious bid and by recalling that single crossing is needed only at individually rational bids two examples suggest that our results cannot be extended to multidimensional signals or to second price auctions

focus on situation and policies for biomass power generation in china abstract nowadays china is faced with many issues such as increasing farmers income protecting environment and adjusting energy structure which may be solved by developing the biomass power generation industry however the lack of technical capability inadequate raw materials and challenges for grid feed in are all obstacles that prevent large scale production and industrialization in the biomass power generation industry therefore government should provide necessary policies to support and advance the biomass power generation industry this paper systematically analyzes the current laws regulations and policies implemented recently in china and provides a comprehensive review of the fiscal subsidies reduction and exemption of taxes tariff concessions the policies of investment and financing and the support of r d suggestions for relevant policies are proposed to address the existing problems

existence of equilibrium in single and double private value auctions we show existence of equilibria in distributional strategies for a wide class of private value auctions including the first general existence result for double auctions the set of equilibria is invariant to the tie breaking rule the model incorporates multiple unit demands all standard pricing rules reserve prices entry costs and stochastic demand and supply valuations can be correlated and asymmetrically distributed for double auctions we show further that at least one equilibrium involves a positive volume of trade the existence proof establishes new connections among existence techniques for discontinuous bayesian games

asymmetric all pay auctions with incomplete information the two player case abstract we prove existence and uniqueness of bayesian equilibrium for a class of generally asymmetric all pay auctions with incomplete information due to its importance in applications some prominence is given to the first price all pay auction for which a detailed characterization of equilibrium and an approximation to equilibrium of its well studied complete information version are supplied furthermore we relate our uniqueness result to the well known multiplicity of equilibria in the war of attrition second price all pay auction which emerges as a limit point of the class of two player auction games considered journalof economic literature classification numbers d44 c62 c72

existence and convergence of equilibria in the buyer s bid double auction this paper concerns a bayesian game model of the buyer s bid double auction which is a procedure for organizing trade that selects a market clearing price from a list of offers bids strategic misrepresentation by traders may make the outcome of trade inefficient satterthwaite and williams 1989 showed that misrepresentation and inefficiency quickly converge to zero as the number of traders on each side of the market increases this is extended here to cases in which the number of buyers may differ from the number of sellers the existence of equilibria in a generic instance of the model is also proven this paper concerns a market in which each trader privately knows his own preferences such a trader may have an incentive to misrepresent his preferences in order to influence the market price in his favour a buyer for instance may bid less than his true evaluation of the good for sale in an attempt to drive the price down similarly a seller may ask for more than he is willing to accept with behaviour of this kind a seller s offer could exceed a buyer s bid even though a mutually profitable trade between them exists in the market as a whole a price may be determined at which all potential gains from trade are not achieved strategic misrepresentation may therefore cause inefficiency our confidence in markets rests upon the belief that this inefficiency is insignificant when there are a large number of small traders a small trader in a large market is unlikely to have much influence on the market price as a consequence he has little incentive to misrepresent and the market is therefore almost fully efficient this argument however is vague about a very important point when is a trader relatively small and how many traders constitute a large market the meaning of small and large in this context is critical to understanding when this intuitive argument applies this argument is investigated here by thoroughly analyzing a particular model of trade a market is considered in which money may be exchanged for indivisible units of a good for n m 1 there are n sellers each of whom has a unit to sell and m buyers each of whom wishes to buy a unit each trader is therefore small in that he trades at most one unit we shall consider arbitrary values of n and m however trade is organized with the following rules each seller submits an offer while each buyer submits a bid the n m offers bids are ordered in a list sl s2 sn m any

existence of equilibrium in large double auctions abstract we show the existence of a pure strategy symmetric increasing equilibrium in double auction markets with correlated conditionally independent private values and many participants the equilibrium we find is arbitrarily close to fully revealing as the market size grows our results provide strategic foundations for price taking behavior in large markets

toward a strategic foundation for rational expectations equilibrium a step toward a strategic foundation for rational expectations equilibrium is taken by considering a double auction with n buyers and m sellers with interdependent values and affiliated private information if there are sufficiently many buyers and sellers and their bids are restricted to a sufficiently fine discrete set of prices then generically there is an equilibrium in nondecreasing bidding functions that is arbitrarily close to the unique fully revealing rational expectations equilibrium of the limit market with unrestricted bids and a continuum of agents in particular the large double auction equilibrium is almost efficient and almost fully aggregates the agents information

the plight of the biomass power generation industry in china a supply chain risk perspective abstract for the past several years the biomass power generation industry in china has witnessed notably rapid development however many biomass power generation manufacturers in china are currently making small profits or suffering losses and the entire biomass supply chain does not function well which not only poses a challenge for the stable operation of enterprises but also may impact the smooth development of the biomass power industry from the perspective of supply chain risk this paper explores the reasons for the current plight and the future obstacles that the chinese biomass power generation industry may face identifying such risks as market risk production risk technology risk economic risk and management risk in the upstream midstream and downstream of the biomass supply chain and ordering the degrees of risk controllability by the government and enterprises it is determined that joint effort by both the chinese government and the biomass power generation enterprises is an ideal choice for risk control coming out of the plight however at present more problems should go to the government for solutions than to the enterprises to guide the healthy development of the industry the chinese government should play a more prominent role in promulgating supporting policies in each stage of the supply chain and strengthening the supervision and control of biomass projects last specific measures taken by the chinese government and the enterprises are proposed

uniqueness and existence of equilibrium in auctions with a reserve price abstract we prove existence and uniqueness of equilibrium for a general class of two player bidding games we apply our results to the first price auction the combination of first and second price auctions the war of attrition the all pay auction as well as combinations of the latter two auction forms we also treat the first price auction without risk neutrality our results deal with the asymmetric affiliated common values environment in the case where signals are independent our results apply to all equilibria when signals are not independent our uniqueness results hold in the class of nondecreasing strategy equilibria journal of economic literature classification number d44

equilibria existence and characterization in auctions achievements and open questions establishing existence and characterizing equilibria is a fundamental step in the study of auctions theoretical characterizations and empirical predictions are well accepted only to the extent that they are based on equilibria however despite the fact that auctions have been extensively studied there are still many problems regarding equilibrium existence and characterization waiting for resolution in this survey we review the landmark results and highlight open questions in addition we review the standard assumptions underlying these results and discuss the suitability of the nash equilibrium solution concept we focus our review on single object auctions but also review results in multi unit divisible combinatorial and double auctions

rational expectations information acquisition and competitive bidding most rational expectations market equilibrium models are not models of price formation and naive mechanisms leading to such equilibria can be severely manipulable in this paper a bidding model is developed which has the market like features that bidders act as price takers and that prices convey information higher equilibrium prices convey more favorable information about the quality of the objects being sold than do lower prices bidders can benefit from trading only if they have a transactions motive or if they have access to inside information apart from exceptional cases prices are not fully revealing a two stage model is developed in which bidders may acquire information at a cost before bidding and for which the equilibrium price is fully revealing resolving a well known paradox

equilibrium in sealed high bid auctions there is a voluminous theoretical literature on sealed high bid auctions auctions in which bids are sealed and the high bidder pays his bid see for example vickrey 1961 myerson 1981 riley and samuelson 1981 milgrom and weber 1982 matthews 1983 maskin and riley 1984 holt 1980 cox smith and walker 1988 a critical property on which this literature relies is the existence of equilibrium in which buyers bidding strategies are monotonic in their types this enables the analyst to perform comparative statics as the distribution of types changes and to compare the welfare properties of the high bid auction with those of other auction institutions one case in which the existence of monotonic equilibrium is readily established is that in which buyers types are distributed smoothly independently and symmetrically in this case there exists a symmetric equilibrium one in which all bidders share the same bidding behaviour as a function of their valuations and this bid function is the solution to a first order differential equation

corrigendum to existence of equilibrium in single and double private value auctions this is a corrigendum to theorem 15 of jackson and swinkels 2005 existence of equilibrium in single and double private value auctions econometrica 73 93 140 which proves the existence of equilibrium with positive probability of trade for private value

present situation problems and solutions of china s biomass power generation industry abstract with the reduction of global oil reserves developing renewable energy has become an important issue for each country biomass power is an important kind of clean energy as it has abundant resource and is environmental friendly in the past few years china biomass power industry has developed rapidly accompanied with some problems this paper analyzes the current situation of china biomass power generation from several aspects such as power structure resource distribution investment strength and policy environment etc we focus on the problems existed in practical operation and analyze the outstanding problems at last this paper offers several suggestions for future development on the relevant fields such as cost strategic planning and policy

crime induced poverty traps abstract poverty makes thieves and thieves hamper economic growth we study these linkages in a model of modern sector job creation job creation has two effects higher labor demand tends to lower crime while higher output gives more to steal tending to increase crime at low levels of modernization the second effect dominates and as a consequence the model has decreasing returns to scale at higher levels of modernization there is increasing returns to scale due to declining crime the economy may end up in a poverty trap with high crime and low production or obtain full modernization with low crime rates the danger of ending up in a poverty trap has implications for economic policies we show for instance that a reform intended to improve efficiency may throw the economy into a vicious circle of increasing crime and stagnation if implemented too fast

what causes violent crime this study uses panel data of intentional homicide and robbery rates for a sample of developed and developing countries for the period 1970 1994 based on information from the united nations world crime surveys to analyze the determinants of national crime rates both across countries and over time a simple model of the incentives to commit crimes is proposed which explicitly considers possible causes of the persistence of crime over time criminal inertia a panel data based gmm methodology is used to estimate a dynamic model of national crime rates this estimator controls for unobserved country speci ce ects the joint endogeneity of some of the explanatory variables and the existence of some types of measurement errors a icting the crime data the results showthat increases in income inequality raise crime rates crime tends to be countercyclical and criminal inertia is signi cant 2002 elsevier science b v all rights reserved

supply chain and logistics issues of bio energy production abstract within the concert of renewable energy technologies bio energy can play a decisive role during the next decades when smartly designed and applied under favorable conditions in this respect efficient and effective supply chain and logistics management represent one key parameter this paper presents a literature review of articles published in english speaking peer reviewed journals from 2000 to 2009 which cover the interface of bio energy production and issues of logistics and supply chain management first the articles are assessed according to descriptive criteria such as journal year of publication and research design applied then issues and challenges of designing and operating biomass chains that secure stable and competitively priced feedstock supply for bio energy plants have been classified 1 into the operations harvesting and collection storage transport and pre treatment techniques as well as 2 into overall supply system design although biomass supply chains for energy use are manifold in terms of size design and functioning most relevant issues regarding supply chain management and logistics of bio energy production are identified the findings are discussed against the backdrop of bio energy as sustainable renewable energy option

possibilities and challenges of china s forestry biomass resource utilization abstract forestry biomass resource has many advantages which makes it a significant new energy to substitute fossil energy as an important role of biomass resources for the utilization of china s forestry biomass resources this paper analyzed the possibilities of its development from the aspect of policy resource endowment market and technology and discussed its development challenges from the aspect of policy economy society technology and resource endowment forestry biomass resources are very abundant in china it has made a significant breakthrough in forest biomass resource utilization with great prospects although there are still some difficulties and challenges in the policy resource endowment and other aspects these challenges are not insurmountable therefore forestry biomass resources should develop in a way with chinese characteristics considering the national condition

developing a sustainability framework for the assessment of bioenergy systems the potential for biomass to contribute to energy supply in a low carbon economy is well recognised however for the sector to contribute fully to sustainable development in the uk specific exploitation routes must meet the three sets of criteria usually recognised as representing the tests for sustainability economic viability in the market and fiscal framework within which the supply chain operates environmental performance including but not limited to low carbon dioxide emissions over the complete fuel cycle and social acceptability with the benefits of using biomass recognised as outweighing any negative social impacts this paper describes an approach to developing a methodology to establish a sustainability framework for the assessment of bioenergy systems to provide practical advice for policy makers planners and the bioenergy industry and thus to support policy development and bioenergy deployment at different scales the approach uses multi criteria decision analysis mcda and decision conferencing to explore how such a process is able to integrate and reconcile the interests and concerns of diverse stakeholder groups

modeling of biomass to energy supply chain operations applications challenges and research directions reducing dependency on fossil fuels and mitigating their environmental impacts are among the most promising aspects of utilizing renewable energy sources the availability of various biomass resources has made it an appealing source of renewable energy given the variability of supply and sources of biomass supply chains play an important role in the efficient provisioning of biomass resources for energy production this paper provides a comprehensive review and classification of the excising literature in modeling of biomass supply chain operations while linking them to the wider strategic challenges and issues with the design planning and management of biomass supply chains on that basis we will present an analysis of the existing gaps and the potential future directions for research in modeling of biomass supply chain operations

pure strategy equilibria of single and double auctions with interdependent values we prove the existence of monotonic pure strategy equilibrium for many kinds of asymmetric auctions with n bidders and unitary demands interdependent values and independent types the assumptions require monotonicity only in the own bidder s type the payments can be a function of all bids thus we provide a new equilibrium existence result for asymmetrical double auctions and a small number of bidders the generality of our setting requires the use of special tie breaking rules we present an example of a double auction with interdependent values where all equilibria are trivial that is they have zero probability of trade this is related to akerlof s market for lemmons example and to the winner s curse establishing a connection between them however we are able to provide sufficient conditions for non trivial equilibrium existence

a feedstock supply model integrating the official organization for china s biomass generation plants abstract shortage of feedstock has hindered the development of china s biomass power generation because it is highly difficult to collect straw in china we pioneered a new feedstock supply model in which the formal official organization of villagers committees is introduced different from the previous feedstock supply patterns the immaterial utility of relative stakeholders and the impact of villagers committees on farmers behavior are considered in this paper to compare this pattern s performance with that of the conventional ones this paper developed a multi agent model specifically for china s situation we applied the model to simulate the operation of a biomass supply chain the results show that the proposed feedstock supply pattern can significantly increase the profits of biomass plants biomass supply amounts and farmers participation and in contrast with the broker pattern it can lower feedstock prices through disintermediation sensitivity analyses show that preferential feed in tariffs are still necessary for biomass power and that the new pattern can ease the government s subsidy burdens additionally farmers opportunity costs for supplying biomass their perceptions of immaterial utility and the cooperative s financial resource schemes of the public welfare fund all have differing impacts on the achievement of the new pattern

first price auctions in the asymmetric n bidder case i consider the first price auction when the bidders valuations may be differently distributed i show that every bayesian equilibrium is an essentially pure equilibrium formed by bid functions whose inverses are solutions of a system of differential equations with boundary conditions i then prove the existence of an equilibrium i prove its uniqueness when the valuation distributions have a mass point at the lower extremity of the support i give sufficient conditions for uniqueness when every valuation distribution is one of two atomless distributions i establish inequalities between equilibrium strategies when relations of stochastic dominance exist between valuation distributions

analysis on the policies of biomass power generation in china abstract this paper systematically collects and sorts out china polices of biomass power generation policy mainly from 2006 to 2012 based on the actual demand of the biomass power generation project according to the effect of the policy implementation it analyzes the problems about the policies such as the development goal being too large tax policies not being easy to implement the relevance amongst some policies being poor and provides some suggestions finally it concludes that biomass power generation should be developed steadily in china and fiscal supporting should not be introduced any more

poverty and crime in 19th century germany we estimate the impact of poverty on crime in 19th century bavaria germany rainfall is used as an instrumental variable for grain rye prices to address econometric identification problems in the existing literature the rye price was a major determinant of living standards during this period the rye price has a positive effect on property crime a one standard deviation increased property crime by 8 ols estimates are twice as large as instrumental variable estimates highlighting the value of our empirical approach higher rye prices lead to significantly less violent crime though and we argue that higher beer prices caused by the higher rye prices are a likely explanation