Livestock Disease Indemnity Design When Moral Hazard Is Followed by Adverse Selection

Averting or limiting the outbreak of infectious disease in domestic livestock herds is an economic and potential human health issue that involves the government and individual livestock producers. Producers have private information about preventive biosecurity measures they adopt on their farms prior to outbreak ( ex ante moral hazard), and following outbreak they possess private information about whether or not their herd is infected ( ex post adverse selection). We investigate how indemnity payments can be designed to provide incentives to producers to invest in biosecurity and report infection to the government in the presence of asymmetric information. We compare the relative magnitude of the first- and second-best levels of biosecurity investment and indemnity payments to demonstrate the tradeoff between risk sharing and efficiency, and we discuss the implications for status quo U.S. policy.     

复合沉淀剂FCJ的研究

在分析现行废铬鞣液处理可使用的沉淀剂的基础上，运用电荷效应及高分子吸附层的凝聚作用原理，研究出用硬脂酸钠、聚丙烯酰胺和氢氧化物按一定比例制成复合沉淀剂，用于废铬鞣液处理，效果良好。     

Restricted access: Real estate agent response to client race,ethnicity, gender,and side of market

We design and implement a correspondence experiment to test for differences in real estate agent response across client race, ethnicity, gender, and side of market. Real estate agents are more likely to respond to White clients than Black or Hispanic clients—Whites have a 32.18% higher response rate than Hispanics and an 8.48% higher response rate than Black clients. We also find that real estate agents are more responsive to sellers (23.81% premium over buyers) and female clients (13.57% premium over males).     

Conflicts of interest and agent heterogeneity in buyer brokerage

This article investigates the incentives of agents working with buyers (buying agents) under the fixed percentage commission system and the implications on housing market outcomes. Our model shows that the absence of a binding contract creates a risk of losing clients for buying agents, which helps mitigate the conflict of interest between buying agents and their clients. Both the buying agent's prediction accuracy regarding their client's reservation prices and the level of tolerance given by the buyer to the buying agent affect the binding force. Results from simulations and empirical analyses using house transactions in Canada support our model predictions.     

Legislators in the crossfire: Strategic non-voting and the effect of transparency

When committee members care about their reputation with a principal, making their choices transparent affects the outcome. In Parliaments, legislators care about their reputation with several principals, namely their constituents and Party leaders. It is thus unclear in which direction votes will move when they become observable, and moreover legislators may prefer to opt out of voting entirely in order to avoid conflict. This paper first uses French voting data to show that reputational concerns drive the decision to participate in a vote: in order to avoid blame legislators are less likely to vote when there is disagreement between the constituents and the Party. Second, making legislators’ votes public increases their incentive to use voting for reputation-building, and, therefore, the distortion in group decision-making. The French transparency reform of 2014 provides a quasi-natural setting for a Difference-in-Differences analysis. Greater transparency led to less participation, as legislators preferred not to take sides.     

The Destination Marketing Organization as an intelligent agent: Evaluating engagement in knowledge management practices

DMOs have been increasingly called upon to adopt the role of knowledge management, becoming intelligent agents with the capacity to gather, assess, and disseminate information among internal and external stakeholders. While knowledge management has remained a prominent topic in the literature, its application within the field of tourism management has been limited. The purpose of this study, therefore, was to ascertain to what extent DMOs have engaged in knowledge management practices through a nation-wide survey of 30 Canadian DMOs. The results demonstrate that, while DMOs have made progress toward becoming intelligent agents, there remains a long way to go.     

Belief aggregation for representative agent models

Representative agent models pin down equilibrium asset prices of an underlying heterogeneous agents economy through the utility maximization problem of a representative agent evaluated at aggregate endowment levels. This paper considers a complete markets asset exchange economy in which all economic agents are expected utility maximizers who share the same risk preferences but may have heterogeneous endowments and beliefs. For arbitrary well-behaved Bernoulli utility functions we derive belief aggregation formulas that characterize the beliefs of an expected utility maximizing representative agent.     

人工智能的财富分配效应研究*

人工智能对经济不平等的影响引起学术界的广泛重视，但是现有研究以分析其对劳动收入不平等的影响为主，关于人工智能对财富分配从而对财产性收入不平等影响的相关研究尚有欠缺。本文通过构建一个连续时间异质性个体动态一般均衡模型，将人工智能对生产技术的影响看作一揽子偏向性技术进步，研究人工智能技术对财富分配的影响。分析发现，人工智能对财富不平等的影响在短期和长期表现有所不同，短期中人工智能技术的应用会提高经济中财富分配不平等程度，而长期中其财富分配效应则取决于人工智能对不同类型技术进步的促进程度。核心机制在于，人工智能技术进步的多样性在短期和长期中对资本回报率产生不同影响，短期中各类技术进步总是会提高资本回报率，而在长期，不同类型的技术进步对资本回报率的影响出现差异。基于以上结论，本文就我国如何在应用人工智能促进增长的同时预防不平等程度扩大提出了政策建议。     

柔软剂BT在腈纶绒线上的应用

国内外腈纶织物柔软整理正由传统的手感改良向功能化、仿动物毛感方向发展。本文研究了柔软剂BT在腈纶绒线上的工艺条件,并从柔软剂BT的性能测试、柔软剂用量、温度影响、时间影响进行了探讨。实验结果表明,柔软剂BT柔软效果好,绒线柔软丰满、毛感强、而且耐洗、抗静电,并且不影响染色色光。