WTO negotiations on agriculture and the distributional impacts for US rice farm households

The policies of wealthy countries have proven the most difficult to reform in the WTO Doha Round negotiations. Considerable emphasis has been placed on developing country impacts, but a gap in the literature remains on the stakes for rich country farmers despite the large role these countries play in global agricultural protection. The research here considers the particular case of US rice households and their sensitivity to Japanese market access reform. Using an applied general equilibrium model with multiple farm households we highlight the distributional impacts among these producers. We argue that concessions to Japan on market access make domestic reforms in rice a difficult political sale in the US since the wealthiest producers bear the largest losses. Improving our understanding of the distributional impacts and political realities of the richest countries is critical to informing the negotiating process because the gains to the world’s poor can only be realized with creative policy redress in these rich nations.     

Sales Promotion and Cooperative Retail Pricing Strategies

Supermarket retailers make strategic pricing decisions in a high-frequency, repeated game environment both in buying and selling fresh produce. In this context, there is some question as to whether a non-cooperative equilibrium can emerge that produces margins above the competitive level. Supermarket pricing results from tacitly collusive equilibria supported by trigger price strategies played in upstream markets. Upstream activities are, in turn, driven by periodic retail price promotions. This hypothesis is tested using a sample of fresh produce pricing data from 20 US supermarket chains. The results support the existence of tacitly collusive non-cooperative equilibria in upstream and downstream markets.     

Product Market Competition,Information and Earnings Management

We study theoretically the effect of product market competition on the incentives to engage in earnings manipulation, and we show how manipulating earnings is particularly rewarding in more competitive markets since the boost in market value of reporting good earnings is especially important. Using a panel dataset of about 70,000 observations spanning the period 1989–2011, we document that the competitive environment is an important determinant of Jones type discretionary accruals and it also affects real earnings management. In additional analysis, we find that the effect of competition on earnings manipulation is particularly important for companies that seem to be underperforming their competitors and that the competition‐earnings management linkage is moderated by the degree of information visibility at the industry level.     

Market risks in asset management companies

This paper shows that revenues from a sample of publicly traded US asset management companies carry substantial market risks. Not only does this challenge the academic risk management literature about the predominance of operative risks in asset management, it is also at odds with current practice in asset management firms. Asset managers do not hedge market risks even though these risks are systematically built into the revenue generation process. This is surprising as shareholders would not optimally choose asset management companies as their source of market beta. They rather prefer to participate in alpha generation and fund gathering expertise of investment managers as financial intermediaries. At the very minimum, asset managers need to monitor their ‘fees at risk’ to understand what impact product design, benchmark choice and fee contract design have on revenue volatility. This calls for a much wider interpretation of the risk management function that too narrowly focuses on client risks.     

中国的通货膨胀:一个新开放宏观模型及其检验

本文基于新开放宏观经济学(NOEM)框架分析了中国的通货膨胀问题,探讨了导致通货膨胀的原因以及各原因之间的相互关系,并利用贝叶斯向量自回归模型(BVAR)进行了计量检验。发现新开放宏观模型对中国的通货膨胀有较好的解释力,货币供应量无论是在长期还是短期都是诱发通货膨胀的主要原因,而外部冲击向中国的传导路径是受阻碍的。     

Monetary aggregates and the business cycle

A monetary aggregate consisting predominantly of zero-maturity deposits, called MZM, tends to systematically lead output in the US business cycle. Such fluctuations are observed both before and after the 1979 monetary policy change. Similar dynamics are obtained in a model with multi-stage production and purchase-size heterogeneity when agents optimally choose their mix of cash, checkable, and time deposits used in transactions. The causality in the model runs from real activity to money, rather than the other way around. Although the monetary base is endogenous, through a Taylor-type rule, the lead in MZM is primarily driven by deposit creation.     

Mixed signals: A dynamic analysis of warranty provision in the automotive industry, 1960–2008

Often, signaling research in the strategy and economics literature postulates the existence of an ostensible signal and then empirically tests its veracity, utilizing cross‐sectional data. We argue that this static approach does not allow researchers to fully incorporate the concept of equilibrium in their analysis, thereby potentially violating a key axiom of signaling theory. We propose that a dynamic analysis of signals can address this omission, and then conduct such an analysis. We use empirical data on warranty coverage offered by automobile manufacturers in the U.S. market extending from the first warranty offered by the industry in 1960 through to 2008. Our findings support the notion that signaling behavior differs in periods of equilibrium and disequilibrium, in turn influencing signal accuracy. Copyright © 2013 John Wiley & Sons, Ltd.     

Can An 'Estimation Factor' Help Explain Cross-Sectional Returns?

Abstract:  We show in a theoretical model that the expected excess return on any asset depends on its covariance not only with the market portfolio, but also with changes in the representative agent's estimate. We test our model using GMM and compare it to the CAPM. The results suggest that adding an 'estimation factor' to the CAPM helps explain cross-sectional returns and that, unconditionally, this estimation factor carries a negative risk premium.     

农民工流入地劳动市场均衡工资与价格歧视实证研究——基于贵州农民工调查数据

欠发达地区大部分农民工缺乏技能,他们的首要目标是在流入地站稳脚跟、再谋发展,为了解决生存问题,只能接受低工资.欠发达地区农民工工资价格与流入地职工工资存在显著差异,农民工工资价格歧视现象严重,贵州农民工歧视系数高达87.8%.缩小城乡差别,增加农民工收入,维护农民工合法权益,需要政府支持、企业规范,更重要的则是农民工自身素质的提高.