Price determinants of bred heifers: Do reputations matter?

Replacement brood cows are among the most significant investments for cow-calf operations, thus crucial to profitability. Many cow-calf producers find it cost effective to purchase replacements from a reliable replacement heifer seller, though by doing so they increase risk of reproductive inefficiency due to unknown characteristics of the heifers. When important information about a product is missing to buyers, a seller can build a reputation over time that acts as signal for quality. Previous work has explored reputation effects in feeder cattle markets, but to our knowledge we are the first to explore reputation effects in bred replacement cattle markets. Using data from an annual replacement heifer sale, we analyze the values of heifer characteristics and test for premiums from reputation development. After controlling for reproductive practices, breed, and other characteristics, we find reputation does not play the role that Shapiro theorized. In this sale, the lot order is strategically chosen and may indicate bred heifer quality to buyers, replacing the need for reputation as a signal. This study highlights the importance of quality signals and regional preferences in bred replacement cattle marketing and lays the empirical groundwork for future studies to test Shapiro's theory.     

信用效应认识的深化与信用秩序的恢复和增强

市场经济从本质上讲是信用经济.在市场经济条件下,信用是最基本的社会经济关系,是整个社会经济得以维系和发展的基础.随着中国经济改革的逐步深入,特别是在加入WTO后,信用的作用逐步显现出来.但是,人们对信用效应的认识还有待深化,尤其是对信用关系紊乱可能带来的负面作用认识得不多,而对信用的积极作用往往习惯于借鉴美欧现成的信用模式.本文从深化对信用效应的认识入手,分析了信用秩序混乱的形成原因,并在简要评价我国信用基本状况的基础上,提出了恢复和增强我国信用秩序的建议.     

品牌,为解决信息不对称而付出的额外成本

品牌本身不会改变商品实体性能。但从信息经济学的角度分析,在信息不对称的现实市场中,品牌作为一种发信号的机制,可以把优质企业和劣质企业区分开,从而对优质企业和消费者都有好处。虽然建立品牌让厂商花费了额外成本,但是只要建立品牌的费用控制在一定范围内,厂商建立的品牌就是一种合理的有利于提高社会福利的行为。     

潜性与显性修辞原则：诚信与得体

修辞的原则是修辞界讨论较多的内容，但把修辞的原则分解为潜性原则和显性原则采讨论，尚不多见。修辞应该有潜性原则和显性原则之分。修辞的潜性原则是诚信，它是内在的，看不见，摸不着的；修辞的显性原则是得体，它是外在的，听得见，感受得到的。诚信是表达的出发点和落脚点。得体是诚信的结果和表现形式。诚信必须通过得体这个美丽的外衣来显现。但诚信和得体之问是非对称关系，因此，不可逆向推断。     

关于风险投资内在机理的经济学分析

从经济学的角度对风险投资进行了内部和外部两个方面的具体分析。根据交易成本理论和信息不对称理论分析了风险投资的特点 ,揭示了风险投资迅速发展的内在机理 ;依据科斯定理和“囚徒困境”模型 ,阐明了政府积极参与的必要性     

非对称信息下的电力产业需求侧管理机制设计

应用机制设计理论的一般方法,对需求侧管理合约进行分析,认为传统的峰值定价不能有效的解决信息不对称的问题,偏离了需求侧管理的目标。激励性需求侧管理可以根据消费者的类型,提供不同的合约,从而有效地解决信息不对称条件下社会福利偏离的问题。这种合约在一定的范围内解决电子资源供给与需求的矛盾,符合需求侧管理的目标,实现市场环境下电力资源的最优配置。     

基于促销投资的非对称信息供应链契约研究

利用了委托代理理论和最优控制理论,分析对称信息和不对称信息两种情况下制造商和零售商的供应链契约。零售商进行促销投资,在对称信息情况下,制造商以批发价作为线性契约来协调供应链系统,批发价是促销投资的减函数;在非对称信息情况下,制造商以批发价和补贴作为非线性契约的协调机制,而批发价和补贴都是促销投资的增函数。     

Venture Capital Valuation,Partial Adjustment,and Underpricing: Behavioral Bias or Information Production?

Using a sample of venture capital (VC)‐backed initial public offerings (IPOs), we analyze the role played by perceived valuation changes on IPO underpricing. We find that perceived valuation change from the last pre‐IPO VC round to the IPO affects IPO underpricing in a nonlinear way. Further analysis indicates that information‐based theories, not behavioral biases, explain this nonlinearity. We also find that the previously documented partial adjustment effect and its nonlinear impact on IPO underpricing are related to the trajectory of the perceived valuation changes, which stands in stark contrast to prior evidence of the importance of behavioral biases.     

我国蔬菜价格垂直传导的非对称性研究——基于面板VAR模型的实证

运用面板向量自回归模型(PVAR)对我国蔬菜的生产价格、批发价格和零售价格的垂直传导机制进行实证研究,结果表明我国蔬菜三种价格的波动幅度和增长速度自上而下呈依次增强的特征;价格的正向传导顺畅,逆向传导存在一到两期的滞后,传导强度上存在正向传递强度明显高于逆向传递的非对称现象;生产价格在整个价格波动的传导链中占主导地位,蔬菜价格的稳定在很大程度上依赖于蔬菜的生产环节。