Diversification and Capital Structure: Some International Evidence

This study examines the effects of international and product diversification on capital structure with 232 firms from 30 countries. Results for the full sample show that international diversification is negatively related to financial leverage, but further analyses indicate that this is mainly attributable to US firms. For non-US firms, we fail to find a significant relationship. Results also show that product diversification is positively related to financial leverage, indicating that such diversification allows firms to reduce their risks, thereby enabling firms to carry higher debt levels.     

再论普惠金融及其本质特征

普惠金融是引领、规范与实现金融发展的,突出强调秉持金融的哲学人文发展理念,突出强调彰显金融为促进人类经济与社会发展而生,突出强调坚持金融为最广泛社会大众竭诚服务的一种共享的金融发展方式.对普惠金融概念的再界定回答了普惠金融是什么及其本质性特征是什么等问题,并在某种意义上辨析了其与小微金融、扶贫金融、农村金融等相关概念的混淆,对规范普惠金融相关研究具有指导意义.     

Size of nested cities

Models of cities based on conventional spatial market theory are unable to replicate a realistic size distribution. The stochastic process approach to size distribution, which assumes proportionate growth, does not provide an economic foundation for spatial trades. There is an apparent irreconcilability. We propose that since there is a continuum of equilibria in models of spatial markets with endogenous location, proportionate growth can work as equilibrium selection. We present computations for an urban configuration that has not been presented in the literature before. A small city locates inside a larger city's agricultural supply zone. This generates a larger variation in city size that may include a realistic size distribution.     

RETRACTED ARTICLE: Modern Business Ethics Research: Concepts,Theories, and Relationships

The main purpose of this study is to explore and map the intellectual structure of business ethics studies during 1997–2006 by analyzing 85,000 cited references of 3,059 articles from three business ethics related journals in SSCI and SCI databases. In this article, co-citation analysis and social network analysis techniques are used to research intellectual structure of the business ethics literature. We are able to identify the important publications and the influential scholars as well as the correlations among these publications by analyzing citation and co-citation. Three factors emerged in this study are: (1) ethical/unethical decision making, (2) corporate governance and firm performance, and (3) ethical principles and code of conduct.     

微波反馈放大器匹配及增益带宽的研究

本文介绍的是小信号微波反馈放大器的分析与综合。放大器是采用通常的增益级的框图,并取并联反馈。文中提供全部网络元件值的估算和预测闭环宽频带增益、带宽和双端口的匹配值。简述匹配值与增益用图解法的权衡。最后描述了综合方法并举例说明设计实例。     

解非线性电路稳态响应的一种有效算法

本文提供一种计算非线性电路的稳态响应的有效算法,在多频信号激励的强迫振荡电路和耦合振荡电路都可使用。该方法可称为“代换算法”。因为,它每一步的变量都是用残留误差的各个频率分量解关联时不变电路,该电路是用“松弛法”将时变电路转换而来。此算法非常简单而有效,并且可应用于各种非线性电路。     

Voluntary contributions to multiple public goods in a production economy with widespread externalities

In a production economy, multiple public goods are produced by firms in competitive markets, and provided by the government together with contributions from consumers. There are widespread externalities: all consumers’ consumption and contributions and all firms’ production enter into utility functions. Public goods can be imperfect substitutes or complements, and they can be local public goods or club goods. Zero bounds that require consumers to make nonnegative contributions complicate the differentiable approach. Applying the transversality theorem for smooth economies in a regular parameterization, we obtain the existence of equilibrium in such an economy, and generically equilibria are regular and locally unique.     

The Influence of Takeover Protection on Earnings Management

Abstract:  We examine the relationship between takeover protection and earnings management. Existing theories suggest two contradictory effects of takeover protection on opportunistic earnings management: entrenchment theory suggests an exacerbating effect, whereas both alignment theory and quiet life theory posit a mitigating effect. We find that takeover protection is associated with lower levels of abnormal working capital accruals, lower levels of performance-adjusted abnormal accruals and timelier recognition of losses. Further tests show that takeover protection is associated with lower firm value, which contradicts alignment theory but supports quiet life theory. The results suggest that takeover protection allows managers to enjoy the quiet life and thus mitigates earnings management.