Best classification algorithms in peer-to-peer lending

A proper credit scoring technique is vital to the long-term success of all kinds of financial institutions, including peer-to-peer (P2P) lending platforms. The main contribution of our paper is the robust ranking of 10 different classification techniques based on a real-world P2P lending data set. Our data set comes from the Lending Club covering the 2009–2013 period, which contains 212,252 records and 23 different variables. Unlike other researchers, we use a data sample which contains the final loan resolution for all loans. We built our research using a 5-fold cross-validation method and 6 different classification performance measurements. Our results show that logistic regression, artificial neural networks, and linear discriminant analysis are the three best algorithms based on the Lending Club data. Conversely, we identify k-nearest neighbors and classification and regression tree as the two worst classification methods.     

国民经济优先发展行业排序方法

为优化经济发展途径 ,筛选出经济中的优势行业给予重点支持 ,是宏观经济学的重要任务。本文首先应用统计学中的主成分分析法 ,针对湖北省情况 ,对国民经济 4 0个 1级行业进行排序 ,取得符合实际的结果 ,筛选出消费优势部门及生产优势部门。     

2009年中国企业对外直接投资分省(市)排行榜及其评析

近年来,中国企业对外直接投资在规模和增长速度方面都取得了长足的进步。本文首先对2009年中国对外直接投资分省市排行榜及其总体态势进行了分析,与此同时,论文还就2007-2009年间对外直接投资的变动情况及金融危机带来的影响进行了深入剖析。     

基金业绩如何影响风格漂移和经理离职?——理论与经验分析

本文通过一个两期模型,刻画了基金业绩如何通过影响市场信念,进而影响基金风格漂移和基金公司的解雇行为。若上期基金业绩很好,基金经理就会在乐观的自我能力预期下,完全按照自己的判断选择基金投资风格;若上期业绩一般,基金经理会因为调整成本而不太愿意切换投资风格;而若上期业绩很差导致自我能力预期悲观,基金经理就宁愿模仿上期绩优基金的投资风格。综合起来,基金风格漂移将随上期基金业绩呈现出显著的U型关系。进一步,因为业绩很差的基金经理会采取模仿策略,因此在市场风格发生切换时更有可能发生基金经理解雇事件。此外,本文基于中国开放式基金的季度数据,检验了风格漂移与滞后一期基金业绩之间的关系,经验证据稳健地支持了理论分析的各种结论。     

Market Reactions to Corporate Governance Ranking Announcements: Evidence from Taiwan

This study examines whether market participants react to the announcements of corporate governance ranking exercises. As a regulatory innovation, the Financial Supervisory Commission in Taiwan initiated and administered two ranking exercises, one in 2015 and the other in 2016, on all publicly listed companies. Adopting anchoring-and-adjustment theory, the study predicts that market participants will react strongly to the second announcement if the ranking obtained in the second exercise turns out to be better than the ranking in the first round. Employing an event study methodology, the study shows that market participants react positively and significantly to firms ranked in the top 50% in the second corporate governance exercise. Their reactions to the announcement are even stronger among those that did not list in the top 20% in the first exercise, but made it into the top 50% in the second one. Overall, our analyses support that anchoring-and-adjustment theory effectively explains market participants’ behaviour. Since the monitoring of the board of directors and investors may not effectively mitigate the potential moral hazard committed by family owners/executives, our empirical evidence demonstrates that a ranking exercise probably can be employed to supplement routine corporate governance disclosures made in annual reports, in order to strengthen the check-and-balance mechanism and reduce the risk of principal–principal conflicts. In conclusion, we discuss the implications of the research findings and propose directions for future studies.     

Efficiency vectors, efficiency and performance measures: new methods for ranking efficient organizational units

We present and discuss measures for analyzing productivity in deterministic frontier models. A new efficiency measure is introduced allowing for discrimination among efficient organizational units. In addition, a new performance measure for analyzing productivity of organizational units is presented. This measure fulfills various properties of efficiency measures but relaxes the indicator property. Both new approaches are based on the development of efficiency vectors which is a new vector measure for measuring efficiency. The vector components are efficiency measures related to subsets of a production possibility set. The new approaches are applied in the context of data envelopment analysis.

Finance editorial board membership and research productivity

The research productivity of board members of the top academic finance journals—Journal of Finance, Journal of Financial Economics, Review of Financial Studies, Journal of Financial and Quantitative Analysis, and Financial Management—is investigated. Discipline specific benchmarks for substantial research excellence are determined and an evaluation of influential finance journals is presented. Publication in Journal of Finance is the most notable benchmark for selection to the editorial board of any of the finance journals evaluated. The results imply that publishing one article in Journal of Finance, Journal of Financial Economics or Review of Financial Studies in a 5-year period coupled with additional appearances in the broader top tier finance journals would be representative of exceptional research achievement.

The geographical efficiency of education and research: The ranking of U.S. universities

This paper proposes to study the American efficiency of educational diffusion and research productivity following two distinctions: urban vs. rural areas and public vs. private universities. Following this geographical consideration, knowledge diffusion seems to be homogeneous over the American territory, whereas research productivity is more heterogeneous: American research efficiency decreased of 7% points, due to some rural university localizations. Universities in urban areas favor educational quality through high student selection criteria, contrary to those located in more rural areas. Third, public universities present higher educational efficiency, in favoring educational quality over research productivity: the lesser research efficiency of public institutions comes from difficulties in the management of several campuses, by comparison with the private institutions which are all single-campus.     

土地承包权、土地经营权的性质阐释

着眼于农地“三权分置”改革的政策目标,以既有土地承包经营权制度为基础,通过对“所有权—用益物权”之他物权生成逻辑的拓展,土地经营权得以建立源自“用益物权—次级用益物权”的权利架构。土地经营权是土地承包经营权人设定的次级用益物权,其生成是土地承包经营权人行使其用益物权的结果,分置出土地经营权的土地承包经营权即为土地承包权。通过扩大解释《物权法》第117条中“动产”的含义以及登记技术信息化对物权类型和内容的扩容,物权法完全可以容纳土地经营权这一新型物权。“成员权说”对土地承包权性质的阐释,“总括权利说”“两权说”“债权说”对土地经营权性质的阐释都有偏颇之处,并可能引发实践中的现实问题。