Are USDA reports still news to changing crop markets?

This study investigates whether major USDA reports still provide important news to changing crop markets. The news component of each report, or market “surprise,” is measured as a difference between the USDA estimate and its private expectation in corn, soybeans, and wheat markets. Changes in the relevance of USDA information are assessed by examining changes in the magnitude of market surprises and shifts in the futures price reaction to these surprises, which isolates the impact of each report. The stable size of market surprises over time suggests that competition from alternative data sources has not reduced the news component of USDA crop reports. Increasing price reaction to most reports, including those facing competition from alternative information sources, suggests that value of public information may be enhanced in uncertain markets affected by structural changes.     

Pre-Harvest Price Expectations for Corn: The Information Content of USDA Reports and New Crop Futures

This article examines the puzzle of why futures prices continue to react to USDA crop reports despite the fact that reports appear to be no longer "newsworthy," that is, provide no better production estimates than private forecasts. The information value of reports is measured in terms of their influence on rational agents' harvest-time corn price expectations, which are uncovered using a Hamilton-type modeling approach. Results show that reports are still "newsworthy," as they would contribute to agents' price expectations if released a day early. Thus futures price reactions, which closely reflect price expectations, are rational and consistent with efficient markets hypothesis.     

审计师对舞弊报表说不了吗——来自配样本的初步证据

本文以1998—2005年上市公司舞弊样本与配对样本作为研究对象,实证分析了非标审计意见与舞弊报表的关系。研究结果表明,审计师能够以出具非标审计意见的方式揭露报表舞弊。     

中国证券市场年报补丁公司特征研究

在上市公司午报披露之后，屡屡可见公司对年报的各类补充公告与更正公告（即年报补丁），年报朴丁不仅受到媒体的强烈抨击，也为监管部门所关注。本文选取发布2001～2003年年报补丁的公司作为研究样本，并分年度、行业、公司规模选取配对样本，考察补丁公司的经济特征，研究表明，相对配对样本而言，补丁公司的业绩较差，公目的总资产增长较快，较少设置审计委员会，且审计质量较差。     

上市公司会计稳健性的时序演进与行业特征研究

会计稳健性（accounting conservatism）是财务报告的一个重要特征和惯例。稳健原则的贯彻实施是我国会计改革与国际接轨的突出特征。为分析中国的会计稳健性在实证上的特征，本文采用中国上市公司1993～2003年的数据，运用basu（1997）模型，计算了上市公司分年度的会计稳健性以及行业特征。实证研究发现，随着中国会计制度的改革，证券市场监管和处罚力度的强化，注册会计师的脱钩改制，会计稳健性在1998年后逐渐增强，2001年以后上市公司的会计具有稳健性，会计稳健性具有行业特征，在制造业尤其明显。     

楼盘管理系统销售报表模块的设计与实现

楼盘管理系统是一个功能完善的管理系统,由于篇幅的限制,主要介绍了系统中的销售报表模块的设计。系统是基于winform下的Grid View控件来实现的,数据可以导出Excel,方便相关人员的二次处理的需求,整体采用了C/S结构及Web Service技术。     

Bankruptcy prediction for small- and medium-sized companies using severely imbalanced datasets

Bankruptcy prediction is still important topic receiving notable attention. Information about an imminent bankruptcy threat is a crucial aspect of the decision-making process of managers, financial institutions, and government agencies. In this paper, we utilize a newly acquired dataset comprising financial parameters derived from the annual reports of small- and medium-sized companies. The data, which reveal the true ratio between bankrupt and non-bankrupt companies, are severely imbalanced and only contain a small fraction of bankrupt companies. Our solution to overcome this challenging scenario of imbalanced learning was to adopt three one-class classification methods: a least-squares approach to anomaly detection, an isolation forest, and one-class support vector machines for comparison with conventional support vector machines. We provide a comprehensive analysis of the financial attributes and identify those that are most relevant to bankruptcy prediction. The highest prediction performance in terms of the geometric mean score is 91%. The results are validated on two datasets from the manufacturing and construction industries.     

环境检测报告质量的提升策略分析

环境检测工作对于环境保护具有重要影响,这要求全社会稳步提升对于环境检测工作的认识水平,积极地参与相关工作实践,为环境保护提供可靠的参考依据。论文重点分析了环境检测报告质量的提升策略,结合提升环境检测报告质量的意义,提出对应的方案,以期推动环境检测报告的质量提升至新的高度。     

The Informational Role of Short Sellers: The Evidence from Short Sellers’ Reports on US‐Listed Chinese Firms

Using US‐listed Chinese firms as the setting, this paper studies a novel channel through which investors can acquire information about firms’ financial reporting quality, that is, the reports published voluntarily by short sellers. I find that short sellers tend to target firms that have financial reporting red flags and that exhibit ‘good’ operating performance and stock valuations. Targeted firms experience an average three‐day cumulative abnormal return (CAR) of ?6.4%, and ?13.6% for initial coverage of the firm, and the CARs are more negative when the reports allege more severe misconduct of the firms. Non‐targeted firms also experience losses in value following short seller reports, especially when they hire the same non‐Big 4 auditors as targeted firms and when their earnings quality is poor. In comparison, analysts fail to perform proper due diligence and are much less effective than short sellers in exposing misreporting risk in Chinese firms.     

USDA Certification of Food as Organic: An Investigation of Consumer Beliefs about the Health Benefits of Organic Food

Back in 2002, the United States Department of Agriculture (USDA) implemented the final national standards and began certifying foods as having met the criterion in the production, handling, and processing of organically grown agricultural products. Consumers began seeing the USDA seal displayed as well as, the word “certified” and various levels of organic content on the front display panel of the product. The USDA stresses that the organic standard and label requirements do not imply organic foods are healthier. This research analyzes possible implications of consumers incorrectly inferring that food products with the USDA-organic certification label are healthier than food products without that certification.