Measuring the consequences of promoting inner city homeownership

This paper examines low- and moderate-income households in the City of Philadelphia who are becoming homeowners for the first time. We examine two Nehemiah developments subsidized by the City of Philadelphia that offer newly constructed homes at well-below cost. This paper uses a unique survey of these new owners to measure what Nehemiah residents gain in terms of structure and community attributes as they make the transition from renting to owning. The new owners in the Nehemiah complexes significantly improve their housing structures while raising their exposure to crime and weak local public schools. As part of the City’s community development strategy, these developments were expected to increase economic activity near these sites. We document that there is no evidence of local benefit spillovers for census tracts where the Nehemiah developments were built. Our survey results suggest that the new housing developments represent an “oasis” where there are few interactions between the new homeowners and the incumbent residents of the greater community.     

Adaptation investments and homeownership

This article develops a model where ownership improves the efficiency of the housing market as it enhances the utility of housing consumption for some consumers. The model is based on an extended Hotelling–Lancaster utility approach in which the ideal variant of housing is obtainable only by adapting the home through a supplementary investment. Ownership offers low costs of adaptation, but has high contract costs compared with renting. Consumers simultaneously choose housing demand and tenure, and because of the different cost structure only consumers with strong preferences for individual adaptation of the home choose ownership. This article analyses the consumer’s optimization. The model provides an explanation for the observation that homeowners typically live in larger dwelling units than tenants. It also provides an explanation for a high price of housing services tending to reduce homeownership rates.     

The benefits of international diversification: Re-examining the effect of market allocation constraints

This paper makes adjustments to the data, methods and perspective as presented in Chiou (2008) to report lower potential benefits from international diversification for U.S. investors during the previously reported 1988–2004 investment period. The extended results for 1988–2014 are also presented. Naive international diversification is not found to provide positive return-to-risk (RR) gains or volatility reducing benefits versus the U.S. market. Portfolios optimized with no short sales and weakened weight constraints on positive market allocations can provide RR gains and volatility reducing benefits. The positive RR benefits from diversification out of the U.S. market portfolio are not found to be statistically significant for both periods measured.     

Translating macro-ideas into micro-level practices: The role of social interactions

Translation studies have conceptualized language, editing and meaning in the adoption of new ideas or policies, but left the role of interpersonal relationships largely unexplored. This paper contributes to translation theory by using insights from social exchange theory to analyze the role of social interactions in translation. Our case is the translation of the macro-idea of ‘activation’ in practices of sickness absence management within Dutch and Danish hospitals. The study reveals that the translation of this macro-idea into micro-practices varies along with the local managers’ positive or negative interpretation of social interactions with their sick-listed employees. The findings thus suggest a crucial role for interpersonal relationships in explaining meaning, reciprocity and outcomes of translation. The findings are used to develop a model of how macro-ideas are related to micro-practices via mechanisms of social exchange.     

The financial investment decision of non-financial firms in China

This paper constructs a portfolio model to analyze the determinants of the financial investment decision of non-financial firms in China. Unlike the literature assuming that financial investments are riskless, our model allows risks in both fixed and financial investments. We show that this extension provides an analytically similar but economically different model from the literature. In particular, it is relative risk and risk-adjusted return gap, not pure risk and simple return gap that enter into firms’ financial investment decision model. Using firm-level panel data of 1902 firms listed in Chinese stock market over the period from 2006 to 2016 with semi-annual frequency, we find that the ratio of fixed investment risk over total risk dominates financial investment decisions of non-financial firms. However, rates of risk-adjusted return gap between financial and fixed investments play no role in Chinese firms’ financial investment decisions, which is in stark contrast to the results using a model assuming riskless financial investments. The baseline findings are robust to alternative measures of financialization and investment risk and different firm sizes, ownership structures and time periods.     

The antecedents and consequences of charitable donation heterogeneity on social media

This study claims that donating is a rational behavior that balances altruism and self‐interest; therefore, the frequency and magnitude of donating are picked as crucial criteria to classify different crowdfunders because both of them reflect the rationality of donating. This study identifies 6 clusters of crowdfunders and explores the antecedent variables of the typology based on self‐system theory, as well as reveals the social influence of different types of crowdfunders. Data of the crowdfunders (n = 13,868) were collected from “Micro Philanthropy,” a popular SNS crowdfunding platform for charity in China. Social Network Service (SNS) profile information such as network features, social interaction features, and the identity of users was found to be significantly related to the typology. Active donors and bounteous donors are more influential than other donors in absorbing the attention of SNS users and attracting new donors.     

The economic benefits of market timing the style allocation of characteristic-based portfolios

Many exchange traded funds track simple characteristic-based equity portfolios such as the market capitalization, the fundamental value or the inverse volatility portfolio. This paper provides theoretical and empirical evidence for the economic benefits in exploiting the timing-gains that result from the time-varying relative performance of these characteristic-based portfolios. Under a factor model for expected returns, we show that this dynamic portfolio allocation can be efficient across the low-dimensional set of characteristic-based portfolios. We assess the out-of-sample performance on the S&P 100 universe over the period 1990–2013 and show gains in stability and significant positive risk-adjusted returns for the dynamic style portfolio. We conduct several robustness tests and extensions confirming the benefits of dynamic style allocation across characteristic-based portfolios.     

Market effects of private equity placement: Evidence from Chinese equity and bond markets

Research has provided empirical evidence for the stock market reaction toward private placement; however, similar research has not been conducted in terms of the bond market. Using the event study method, we empirically examine the explanatory power of the signaling, free cash flow, and wealth transfer hypotheses based on the reaction of the stock market, bond market, and firm abnormal returns to the private placement announcement. The results show that the stock market has a negative reaction toward private placement, whereas the bond market has a positive reaction. The results also show that the scale of private placement is correlated with the severity of the market reaction. Abnormal returns indicate no significant change both before and after the private placement, and they are unaffected by the scale of private placement. These results are consistent with the wealth transfer hypothesis; however, the market reaction is not attributable to the signaling hypothesis and the free cash flow hypothesis. Extensive research shows that the abnormal returns of private placement change dramatically in non-state-owned enterprises and firms with low credit rating bonds, whereas the bond maturity has no significant impact on the abnormal returns—the wealth transfer effect of private placement is stronger in non-state-owned enterprises and firms with low credit rating bond.     

中外城市群发展经验及其对山东半岛城市群的启示

城市群(带)是在工业化基础上而产生的一种城市高级化的空间组织形式,是区域参与国际竞争的战略支点。本文从解析城市群(带)研究的相关理论入手,着重分析了中外城市群发展的一般特征和形成的经验,提出了良好的区位和基础设施是城市群(带)发展的条件,工业化是其动力,产业转移是其发展的机遇,产业联系是其成功的关键。并以此为基础,对山东半岛建设城市群的路径和措施进行了对比分析,提出了对策建议。     

Rational plunging and the option value of sequential investment: The case of petroleum exploration

The potential to invest sequentially in related assets creates a tradeoff between diversification and concentration. Loading a portfolio with correlated assets has the potential to inflate variance, but also creates information spillovers and real options that may augment total return and mitigate variance. We examine this tradeoff in the context of petroleum exploration. Using a simple model of geological dependence, we show that the value of learning options creates incentives for investors to plunge into dependence; i.e., to assemble portfolios of highly correlated exploration prospects. Risk-neutral and risk-averse investors are distinguished not by the plunging phenomenon, but by the threshold level of dependence that triggers such behavior. Aversion to risk does not imply aversion to dependence. Indeed the potential to plunge should be larger for risk-averse investors than for risk-neutral investors. We test the empirical validity of our theory by examining bidding activity in petroleum lease sales. We find significant plunging behavior across a broad sample of oil companies. We also find that privately-held firms pursue even more concentrated (less diversified) prospect portfolios than publicly-held firms—which we attribute to risk aversion rather than size.     

资本主义与城市社会变迁--新马克思主义城市理论视角

新马克思主义城市理论是对20世纪60年代以来西方城市社会发展和变迁中出现的城市问题进行的一种理论解读.它认为在现代资本主义社会,城市屈从于一个更大系统,是资本主义体系的一部分,对城市的理解和认识必须放到资本主义生产方式理论框架下去考察,资本主义体系包含着内在的基本矛盾,正是这些基本矛盾影响并决定着资本主义城市社会的发展,城市的变迁连接、反映并调节着资本主义基本矛盾,是与资本积累、资本循环、劳动力再生产等资本主义运作过程相联系的,体现了资本主义的运作逻辑.新马克思主义城市理论发展并创新了马克思主义理论,为丰富和发展城市社会学理论做出了很大贡献.     

The productivity of private and social farms: Multilateral Malmquist indices for Slovene dairying enterprises

Applying programming techniques to farm-level panel data for four cooperative and 12 private dairy farms in the Yugoslav Republic of Slovenia gives estimates of technical efficiency, scale efficiency, and technical progress. These are used to construct multilateral Malmquist indices of total factor productivity (TFP). For the cooperatives, TFP growth has been slow and is attributable to technical progress. For the private farms, technical progress was also slow, but TFP growth was faster due to improved efficiency. Scale inefficiency explains the poorer absolute performance of the private farms, indicating the need for land reform as well as technological change.     

项目团队的组织结构选择

随着组织外部环境和内部条件的多变性发展以及不确定性的提高,项目管理得到了广泛的应用并引起了大量的研究,但对项目管理的实施主体的组织形式研究缺乏,文章以项目团队的组织结构为研究对象,在项目目标性、独特性、约束性等特点下对其设计原则、影响因素进行分析,并对常见的四类结构类型进行比较,为项目团队组织结构选择提供一般性建议。     

中国上市公司的股权结构：成因与影响

股权结构对公司绩效、治理模式具有重要的影响。影响一国公司股权结构的因素是多方面的,但证券市场监管水平的差异和对中小投资者的法律保护程度差异是主要的因素。当前中国上市公司股权结构、证券监管及法律环境造成了公司治理及绩效中的诸多问题,特别是控股股东对外部投资者利益的侵害。本文对这些问题进行了研究和探讨,并提出了相应的改善措施。     

Antecedents and consequences of social capital on buyer performance improvement

The ability to leverage social capital within strategic buyer–supplier relationships is increasingly cited as a key driver of value creation. Despite the importance of strategic partnerships, the process by which social capital accumulates within buyer–supplier relationships and contributes to buyer performance improvements is not well understood. Drawing on social capital theory, we develop a model linking positive relational capital, and its antecedents, supplier integration and supplier closeness, to buyer performance improvements. Further, we hypothesize that structural capital, as reflected in managerial communication and technical exchanges, is also positively related to buyer performance improvements. Using data provided by 111 procurement executives from the United Kingdom, we find support for our hypotheses. The study extends the supply chain management and social capital literature and suggests important implications for both research and practice.     

Housing-choice hindrances and urban spatial structure: Evidence from matched location and location-preference data in Chinese cities

In a monocentric city with a well-functioning residential market, Pareto-efficient spatial equilibrium entails the sorting of residents according to their bid–rent gradient in descending order away from city center. Violation of this sorting condition creates opportunities for Pareto-improving trading of locations and can be sustained only if the market is hindered. We propose a simple ordered-location-choice model using matched location and location-preference data of individual households to examine violations of the Pareto-efficient spatial sorting condition. In so doing we are able to identify population groups facing housing-choice hindrances. We find in a sample of Chinese cities undergoing housing market liberalization that poor marketability of the previously state-provided homes, inadequate provision of housing finance, and spatial mismatch between job-market and housing-market opportunities contribute to a Pareto-inefficient spatial structure.     

发展民营经济需拓宽民营企业的融资渠道

阐释了民营经济在国民经济和社会发展中的作用,分析了当前民营企业融资的现状,提出了进一步发展民营经济需解决好民营企业的融资问题,指出了拓宽民营企业融资的渠道。     

企业债权融资的理论基础及现实选择

债权融资是企业外部融资的主要方式之一。适度负债和最优融资结构问题始终是学术界和实务界的一个研究焦点。本文从我国上市公司的债权融资问题出发,以西方现代融资结构理论框架为基础进行分析,在剖析成因、把握现状的前提下,基于微观的视角提出了公司应采取的一些对策建议。