Feature selection methods involving support vector machines for prediction of insolvency in non‐life insurance companies

We propose two novel approaches for feature selection and ranking tasks based on simulated annealing (SA) and Walsh analysis, which use a support vector machine as an underlying classifier. These approaches are inspired by one of the key problems in the insurance sector: predicting the insolvency of a non‐life insurance company. This prediction is based on accounting ratios, which measure the health of the companies. The approaches proposed provide a set of ratios (the SA approach) and a ranking of the ratios (the Walsh analysis ranking) that would allow a decision about the financial state of each company studied. The proposed feature selection methods are applied to the prediction the insolvency of several Spanish non‐life insurance companies, yielding state‐of‐the‐art results in the tests performed. Copyright © 2005 John Wiley & Sons, Ltd.     

世界银行卡产业发展研究

随着全球经济的复苏和银行卡受理环境的改善,近年来世界银行卡产业保持着迅捷的增长势头,银行卡作为支付手段对现金和支票的替代作用也日益明显。本文从总量指标和人均指标两方面对当前世界主要国家和地区银行卡产业的交易状况进行了实证研究,分析了全球银行卡市场在区域和品牌上的分布结构,并对该产业近年来的发展趋势进行了总结与探讨。     

Competition and Concentration in the New European Banking Landscape

This paper measures the degree of concentration and competition in the enlarged European Union (EU) banking environment over the period 1998–2002. In the empirical part we opt for a methodology as proposed by Panzar and Rosse based on a non‐structural estimation of market competition. Our results suggest that European banks were operating under conditions of monopolistic competition and that bank interest revenues in the 10 new EU member states was earned under conditions of higher competition than those that existed in the old EU banking countries. The opposite result was observed for total operating revenues. Smaller banks earn interest income in a less competitive environment than larger banks, while the opposite is observed for total revenues.     

Sticky Expectations and the Profitability Anomaly

We propose a theory of the “profitability” anomaly. In our model, investors forecast future profits using a signal and sticky belief dynamics. In this model, past profits forecast future returns (the profitability anomaly). Using analyst forecast data, we measure expectation stickiness at the firm level and find strong support for three additional model predictions: (1) analysts are on average too pessimistic regarding the future profits of high‐profit firms, (2) the profitability anomaly is stronger for stocks that are followed by stickier analysts, and (3) the profitability anomaly is stronger for stocks with more persistent profits.     

Dory & Nemo Early Learning Center

The case requires students to evaluate the current situation and growth options of a small business, Dory & Nemo Early Learning Center (D&N), which provides intergenerational programming to preschool children at a retirement home. The learning center was opened in September 2014, and it was able to make a small profit each year. However, it is projected that there would be a 75 percent decrease in net income from $8,072 in Fiscal 2016 to $1,819 in Fiscal 2017. Davis and Nathans, business partners of D&N, met to discuss the following growth options: (i) Mosaic Retirement Residences' proposal to set up two learning centers at their retirement homes each year for a total of six in three years and (ii) Harmony Retirement Residences' proposal for leasing space to set up learning centers at their retirement homes, one new learning center a year for a total of three in three years. Furthermore, Davis and Nathans had decided to increase the program fee from $320 to $350 per week for the 2017–18 academic session in September. They would also like to reduce their workload from 50 to 40 hours per week, increase their vacation time from two to three weeks, and increase their salaries and bonuses. Students must consider personal objectives of business partners and mission of D&N in the analysis. They learn to identify relevant information for decision making, apply appropriate analytical tools for quantitative analysis, integrate qualitative and quantitative factors in decision making, and make recommendations consistent with analysis.     

Teamwork,Skill Development and Employee Welfare

There has been a sharp divergence in the literature about the benefits of teamwork. Some have claimed that it is solely in the interests of management, others that it is beneficial for employees and yet others that it makes little difference to either productivity or well‐being. This article draws upon the British Skills Survey Series. It shows that while teamwork did expand between the early 1990s and 2006, this was due primarily to the growth of the type of teamwork that allowed employees little in the way of decision‐making power. Indeed, there was a decrease in the prevalence of self‐directive teamwork. At the same time, our evidence shows that the benefits of teamwork, in terms of both enhancing work motivation and employee welfare, are confined to self‐directive teams, while non‐self‐directive teams suppress the use of personal initiative and discretion at work.     

强化我国垄断企业成本监审的思考

我国的垄断企业凭借其行业地位,获得大大超过平均利润的高额利润,这引起人们的广泛关注,并成为社会的一个热点问题,也是一个亟待解决的重大社会经济问题。为提高垄断企业经营成本的透明度,本文通过研究现行成本监审的实际情况及分析存在的问题,提出改进现状的建议。     

通过知识获取型跨国经营提升中国企业技术能力

近几年来,中国企业海外投资日益呈现出新的趋势：对外直接投资以获取发达国家的技术开发人才,机构及相关知识要素为目的,即进行知识获取型跨国经营。这种现象丰富了传统的发展中国家跨国公司理论。本文阐明了知识获取型跨国经营对提高中国企业的技术能力的重要意义,分析了中国企业进行这种类型的投资所具备的竞争优势,并讨论了其关键性成功因素。     

我国企业发展中的法律事务管理战略

一、发展企业法律事务管理的依据。一个企业根据企业发展层次和利益的进行法律规范方面的相应的战略规划，其进行企业法律事务管理建设的可能性主要取决于以下3方面。