Collaboration, peer review and open source software

Open source software development may be superior to proprietary development because the open source organizational form naturally minimizes transactions costs associated with privately distributed information. This manifests itself in the ability of open source communities to encourage critical peer review and the sharing of ideas. When these activities are important, the open source organizational form may do better than a proprietary organizational form. My results suggest why open source is particularly powerful when maintainability of software is critical, and also suggest that the founder of a software project may be more likely to choose open source if there is an existing dominant proprietary software project.     

The effectiveness of the ECB’s unconventional monetary policy: Comparative evidence from crisis and non-crisis Euro-area countries

During the European financial crisis, the European Central Bank implemented a series of unconventional monetary policy measures. We argue that these programs lowered the bond yield spreads of Euro-area countries. This hypothesis is tested using pooled OLS estimations and two different datasets: monetary policy event dummies and the purchase volumes of the Securities Markets Programme (SMP). Overall, we find significantly negative effects on bond yield spreads for both datasets, leading us to accept the hypothesis. While the OMT reduces the spreads of both crisis and non-crisis countries, LTROs and the lowering of the deposit rate to 0 percent are mainly effective in non-crisis countries. The SMP lowers the spreads of crisis countries, but it has the opposite effect on non-crisis countries. This converse effect is explained by the risk that increasingly accumulates on the ECB’s balance sheet through the SMP and that way constitutes a fiscal risk for non-crisis countries. The results are confirmed by pooled OLS estimations that measure the effect of unconventional monetary policy on central government debt.     

信誉的价值:以网上拍卖交易为例

本文使用网上拍卖交易数据,就卖者信誉对市场交易的影响进行了实证研究。我们发现,卖者的信誉评价一方面影响物品成交的价格,另一方面还对物品拍卖成功的概率有着显著的正面影响;但相对来说,卖者的信誉评价对后者的效果比对前者要更显著。这是本文的主要发现。该结果验证了在一个没有政府干预、近乎自由放任的“虚拟”市场上信誉机制的积极作用。     

关联交易与控制性股东的"隧道行为"

在信息不对称情况下,控制性股东能够利用其对上市公司的控制力或影响力进行非公允关联交易,从而以其他投资者的利益为代价从上市公司攫取财富.本文以1998-2005年实施配股的上市公司为样本,分析了配股后上市公司关联交易的分布特征,并研究了关联交易对控制性股东资金占用行为、股票收益和企业价值的影响.研究结果表明:(1)控制性股东通过关联借贷大量侵占了上市公司的资金;(2)投资者在关联交易发生后相应调整了股票价格,导致了上市公司股票收益下降;(3)控制性股东通过隐蔽的关联交易从上市公司输出了财富,造成了以托宾Q衡量的公司价值下降,关联交易与公司价值之间存在负相关关系.非公允关联交易成为控制性股东掠夺中小股东财富的重要方式,导致上市公司的资源被不断输送出去.     

Stock exchange competition in a simple model of capital market equilibrium

This paper uses a simple model of mean-variance capital markets equilibrium with proportional transactions costs to analyze the competition of stock markets for investors. We assume that equity trading is costly and endogenize transactions costs as variables strategically influenced by stock exchanges. Among other things, the model predicts that increasing financial market correlation leads to a decrease of transaction costs, an increase in cross-border trading activity, and to a decrease in the home bias of international equity flows. These predictions are consistent with the recent evolution of international stock markets.     

关于地方政府融资平台的观察与思考——基于大额资金监测分析视角

相关监督管理部门如何能够迅速洞察地方政府债务的实际情况并考察其风险,如何能在政策制定过程中合理平衡与地方融资平台密切相关的地方政府、银行、金融中介与项目公司等各方的利益,是本文的研究内容。我们认为,通过收集与分析地方政府融资平台的大额资金交易数据,能够以最小成本在最短时间内获得真实的一手数据,完整再现平台公司的资金流全景,有助于我们分析判断平台公司真实的财务与债务状况,能够在一定程度上防范和化解地方政府债务的各种风险。     

Women rule: potato markets,cellular phones and access to information in the Bolivian highlands

In highland Bolivia, potato markets are widespread and access to market information has entered the digital age. Information networks lubricated by ubiquitous cellular technologies are supplanting traditional means of information‐gathering. We explore the impacts of access to cellular phones on market selection, use of social networks to acquire information, and gendered responsibilities within the potato market chain near Cochabamba. The entire family participates in potato production and marketing, but responsibilities are differentiated by gender. Men take a leading role in potato production and women in marketing. Access to cellular phones affects decisions about where to market potatoes and improves the potato marketing process.     

Mature relationships: Why does relational orientation turn into transaction orientation?

One of the fundamental assumptions of relationship marketing is that the length of the relationship increases the relational orientation of the partners. Recently, however, researchers have suggested that the benefits of relationship marketing are not evident in a large number of industries [e.g., Journal of Marketing 64 (2000, October) 17]. In this paper, we examine these contradictory results and, using extant research in this area, we model the antecedents of mature relationships that lead to relational versus transactional orientation. Most buyer seller associations follow an s-shaped curve between partners' length of association and the relational orientation of the buyer. However, for some buyer-seller associations, we suggest that there is an inverted u-shaped relationship between relational orientation and length of association. We examine relational attributes and propose variables that are the antecedents of transactional orientation in mature relationships. Implications for theory and managerial practice are highlighted.     

我国上市公司关联交易中盈余管理问题探析

近几年,我国企业之间的并购、联合、相互参股等商业活动使得关联企业之间的交易形式愈来愈复杂,许多上市公司利用虚构的关联交易进行盈余管理而使会计信息失去公允性、可靠性。本文通过对关联交易中盈余管理的影响分析,提出了规范对策,以期对我国有效治理上市公司关联交易中盈余管理问题有所帮助。     

独立董事制度实施效果分析——基于上市公司关联交易的证据

本文借助独立董事在监管大股东与上市公司之间的关联交易来研究独立董事制度实施的效果。我们的实证结果表明,我国独立董事在关联交易方面是起到了积极的作用。也就是说独立董事的实施起到了应有的效果。