Does Animal Feeding Operation Pollution Hurt Public Health? A National Longitudinal Study of Health Externalities Identified by Geographic Shifts in Livestock Production

The Environmental Protection Agency is currently gathering data to regulate livestock facilities under the Clean Air Act, legislation that purports to protect public health. To set rational policy, estimates of health externalities associated with livestock farming are necessary. This study uses geographic shifts in the industry to measure the impact of pollution on infant health. The article finds that a doubling of production leads to a 7.4% increase in infant mortality. This finding is robust with respect to the inclusion of multiple fixed and time-varying controls. The mortality increases are driven by elevated levels of respiratory diseases, providing suggestive evidence of an air pollution mechanism.     

The Dynamics of Household Wealth Accumulation in Italy

We examine the dynamics of wealth accumulation distribution in Italy using data drawn from the Survey of Household Income and Wealth, a representative survey of the Italian population conducted by the Bank of Italy. We compare survey data with National Accounts data and discuss sample representativeness, attrition and measurement issues. We then look at wealth inequality (the cross‐sectional dispersion of wealth) and wealth mobility (individual transitions across the wealth distribution) and examine the age profile of wealth using repeated cross‐sectional data. Finally, we consider various explanations for the pattern of wealth accumulation in Italy, focusing on retirement, bequests, income risk, health shocks and credit market imperfections.     

民营科技企业发展中若干问题的思考

民营科技企业是推动我国经济增长的一支重要力量 ,但目前面临着不少问题 ,包括认识、资金、产权、管理、服务、人才及法律等。解决这些问题的对策是解放思想 ,提高认识 ;建立多元化的投融资体系 ;深化产权制度改革 ,建立现代企业制度 ;加强科学管理 ,提高管理水平 ;建立和完善服务体系及人才培养体系 ;加强法制建设 ,切实保障民营科技企业的合法权益。     

新疆民间融资行为分析

新疆民间融资经过20几年的发展,规模逐渐扩大,对新疆地方经济的发展起到了一定的积极作用,但民间融资也产生了一些消极的影响(增加了风险、不利于监管)。需要通过积极引导,规范民间融资行为,推动地方经济的发展。     

农村污染的经济学解析

农村污染直接关乎长期的、宏观的经济效益,关乎农民和全国人民的健康,是值得关注的大问题。而农村环境问题又属公共品范畴,如何解决好农村公共品的供给和管理的制度创新,又是从根本上解决农村污染问题的关键。因此,文章试图从博弈论和新制度经济学角度对其进行解析,进而提出理论和现实研究对策。     

零售企业自有品牌发展研究

零售企业开发自有品牌是零售企业发展的一个显著特征,本文对零售企业发展自有品牌获得成本、营销组合、竞争、差别优势及提升零售商的品牌价值等方面进行了研究,提出了中国零售企业发展自有品牌应以跟随型自有品牌在价格上形成优势,用高端卖场品牌型自有品牌在质量上竞争,使零售企业利润达到最大化。     

Diversity of Slovenian high-growth companies

Firm growth is critical to economic development and the creation of wealth and employment. Exploring issues and challenges facing high-growth companies may offer valuable insights into promoting dynamic entrepreneurship in contemporary society. This paper investigates Slovenian high-growth companies （data from the Slovenian 500 fastest growing gazelles competition2007 to 2009）. Fundamental research questions are： Why do some firms continue to create new employment and find innovative solutions to old problems （i.e., they grow） whereas others--the majority, remain small and behave in accordance with the traditions of their respective industry？ Where do explanations for such divergence lie, in companies＇ size or industry--in entrepreneurs＇ or managers＇ gender, or in technology orientation （high-tech versus low-tech）？ This study aims to add to the literature on high-growth companies by examining high-growth companies to help people better understand the attributes associated with companies＇ growth. The findings provide evidence of considerable heterogeneity among Slovenian fast-growing companies, making any kind of policy which linked to ＂common characteristics＂ hard to formulate and implement. The discussion focuses on the importance of policies using a character framework to foster the working of markets, while removing unnecessary obstacles.     

The Intellectual Structure Of Research Into PPPs

Abstract

Public–private partnerships (or PPPs) encompass a broad spectrum of public sector infrastructure and service initiatives. Recently, some scholars have undertaken literature review studies of the various definitions of the concept of PPPs and its research traditions, identifying several distinct PPP research approaches. This article aims to: (1) enhance the findings of these literature reviews; (2) identify the cited works and authors (intellectual structure) in the published research on PPPs; (3) define the subfields that constitute the intellectual structure of PPP research fields. The methodology is based on the bibliometric techniques of citation and author co-citation analysis applied to published research on PPPs included in the Social Science Citation Index.     

A note on Heckman-type corrections in models for zero expenditures

In Heien and Wessells (1990), a two-step estimation procedure, that makes use of Heckman-type corrections, is proposed to estimate consumption on household budget surveys. It is shown that this approach, which draws from switching regressions models, leads to inconsistent estimates.