利用构造函数的思想探究罗尔定理的一些应用

罗尔定理在一元微分学处于很重要的地位,本文通过构造函数的思想来探究罗尔定理的应用。     

Misunderstanding of Coase's theory in China

Nowadays,many scholars in China have been influenced by Coase's theory,and use his theory to interpret many phenomena in China,especially to justify some government's actions.But in my opinion,some of them mistookadministrative costsastransaction costs and derived wrong conclusions.     

The role of strategic uncertainty in games: An experimental study of cheap talk and contracts in the Nash demand game

We utilise results from a human-subjects experiment to examine the connection between strategic uncertainty and outcomes in games. Our basic game is a Nash demand game where one player has an outside option available. A “chat” treatment allows bargainers to send cheap-talk messages prior to playing the basic game, and in a “contracts” treatment, they can additionally propose and accept binding contracts. We propose that strategic uncertainty comprises at least two facets: “coordination-type”, which is lower in the chat game than in the basic game, and “rationality-type”, which is lower in the contracts game than in the chat game. We find that both types of strategic uncertainty impact bargaining outcomes: moving from the basic game to the chat game, and thence to contracts, improves several aspects of outcomes, such as higher efficiency, less opting out and less under-demanding. Other results include a treatment effect on the types of agreements that are reached.     

单变元多项式正定性的一种判定方法

本文利用斯图姆定理对参系数单变元多项式的实根个数加以判定,进一步给出了一种判定单变元多项式正定性的方法,并利用Maple软件编程实现了常系数情形下多项式正定性的自动判定.     

Integration in the Norwegian pulpwood market: domestic prices versus external trade

Pulpwood from Norway spruce (Picea abies (L.) Karst) traded domestically in Norway, imported to Norway, or exported from Norway is investigated with respect to commodity homogeneity and market integration. The prices imply that pulpwood from Norway spruce is a homogenous commodity, and the three price series are analyzed with respect to market integration. Using the cointegration estimator two cointegrating vectors are found within the system, and the weak Law of One Price can be imposed on domestic- and import prices. Imports are weakly exogenous to the two other variables, indicating that international pulpwood prices leads the domestic market.     

Auctions with resale and bargaining power

We show that when the weak bidder’s bargaining power in the resale market is weakened, the auctioneer’s revenue from the first-price auction with resale is lower. Using the idea of Coase Theorem, we show that when the resale market is a sequential bargaining model with no commitment, the auctioneer’s revenue is substantially reduced, and the ranking is the opposite of Hafalir and Krishna (2009). We establish a version of the Coase Theorem in the context of the auctions with resale. When Coase Theorem holds, we show that the revenue of the auction with resale is lower than the revenue of the same auction without resale. We also provide the existence and uniqueness of equilibrium for our model of auctions with resale.     

企业理论的起源和发展:一个时间演绎视角

民众、企业、政府是经济社会的三大主体;现在是,以后是,甚至永远都是.正因如此,企业理论成为了过去三十多年间主流经济学中发展最为迅速、也最富有成果的领域之一,它与博奕论、信息经济学、激励机制设计理论、新制度经济学和演化经济学相互交叉,大大丰富了微观经济学内容,改进了人们对市场机制及企业组织制度运行的认识.本文作者以时间为序,搜集、整理了企业理论起源和发展方面的内容,分三个阶段阐述了曾在学界产生一定影响的企业理论观点.     

Strategic information exchange

We analyze a toy class of two-player repeated games with two-sided incomplete information. In our model, two players are facing independent decision problems and each of them holds information that is potentially valuable to the other player. We study to what extent, and how, information can be exchanged at equilibrium. We show that, provided oneʼs initial information is valuable to the other player, equilibria exist at which an arbitrary amount of information is exchanged at an arbitrary high rate. The construction relies on an indefinite, reciprocated, exchange.     

科斯定理、货币异化和资源浪费

科斯定理认为,通过明晰产权和降低交易成本,可以实现外部性的内部化和资源的优化配置。本文认为:但在这个过程中,我们首先要解决一种特殊资源的产权问题,这就是货币资源。在一切资源均可以货币化的今天,如果货币资源得不到有效管理,那么,即使其他资源产权明晰,也会存在浪费。本文从货币异化的角度看待我国的经济发展,并提出了问题的解决思路。     

我国科技企业孵化器发展的新制度经济学分析

运用科斯定理、国家理论、产权理论和意识形态理论等新制度经济学的分支理论分析了我国科技企业孵化器发展的内涵和特征,探讨了科技企业孵化器进一步发展的方向和模式选择。