Can Beer Taxes Affect Teen Pregnancy? Evidence Based on Teen Abortion Rates and Birth Rates

Economists have investigated the effects of increased alcohol taxes on various alcohol-related phenomena like traffic fatalities, but to my knowledge, this study is the first to investigate the effects of beer taxes on teen pregnancy outcomes, namely abortion and birth rates. The study employs state-level data for 15-19-year-old women for the years 1985, 1988, 1992, and 1996. The smallness of the panel imposes some constraints on the statistical methods used. Results indicate that higher beer taxes have statistically significant negative effects on teen abortion rates, though the magnitudes of the effects are quite small. Effects on birthrates are statistically insignificant. This suggests that increased beer taxes may help prevent some unwanted pregnancies that would typically be terminated via abortions rather than culminating in live births. However, the small magnitudes of the effects strongly caution against relying on increased beer taxes to noticeably reduce teen pregnancy rates.     

为什么恰恰承诺对于理性是重要的

当前,随着博弈论的深入,关于理性内容的定位已成为限制其发展的一个主要瓶颈.人的物质偏好究竟在理性中占有怎样的位置?它是否是理性取舍的唯一尺度?文章作者认为,非物质偏好因素在理性抉择中同样占有重要位置,譬如说,承诺.     

人口流动导致区域差异化效应分析——基于空间经济学原理

从人口流动对区域差距影响的视角出发,运用空间经济学理论,将我国东、西部地区作为两个独立的经济体,构建了劳动力人口流动向量模型,分析了人口流动对区域差距的影响及作用机制。得出结论:人口流动对区域差距的影响呈阶段性变化。最后,结合阶段规律和当前经济危机背景提出缩小区域差距的人口流动政策建议。     

基于三阶段Malmquist模型的我国服务业效率研究

文章运用三阶段Malmquist指数模型,对我国各省服务产业2003～2007年期间的相对效率及全要素生产率进行评估分析。研究结果表明:各地区服务业发展受当地环境因素影响显著,经济开放度的提高对当地服务业有显著促进作用,城乡差距的缩小也在一定程度上阻碍服务业发展;我国服务业整体投资规模有所上升,但受技术退步影响导致我国近几年服务行业全要素效率有所退步。另外,从地区差异角度分析,我国服务业整体效率降低很大程度上是由中部地区和西部地区服务业效率退步造成的。     

独立学院《光学薄膜技术》课程体系的构建和主动式教学方法研究

在光学薄膜课程的教学中,采用完善的教学体系和互动式教学方法,科学地组织庞杂的知识点,将抽象的概念具体化,渗入课程前沿领域的知识,在课堂教学中重视采用多种表现形式,探索出了一种适合独立学院的教学方法。     

论建筑工程施工企业内部审计实施重点

现代建筑施工市场竞争的日益激烈,使得施工企业必须从管理工作入手提高经济效益,以此促进企业的发展。工程审计工作是影响项目成本、工程造价实施的关键,是现代建筑工程施工企业向管理要效益、提高综合成本控制的重要方式。本文就建筑工程施工企业内部审计实施重点进行了简要论述。     

我国商业银行利差容忍度测度

文章假定我国商业银行贷款实际利率等于市场利率,模拟存款利率上限放开情境,选择2005年到2010年作为研究区间,对我国10家商业银行的利差容忍度进行测度。结果显示,2005年到2010年,随着我国商业银行,尤其是国有大型商业银行,经营效率的不断提高,对利差缩小的容忍能力显著增强,并且中型规模商业银行对利率市场化改革过程中利差缩小的容忍能力普遍强于国有大型商业银行,国有大型商业银行强于小型股份制银行。     

建筑供应链管理下库存成本控制模型

根据建筑业库存管理出现的问题,提出了运用建筑供应链管理来控制库存成本.进而分析了建筑供应链管理下库存管理的方式,建立了库存成本控制模型,最后通过与传统模式下模型的数学对比,证实了建筑供应链管理比传统模式更节约成本.     

POVERTY IN RURAL INDIA: CASTE AND TRIBE

This paper analyzes the determinants of rural poverty in India, contrasting the situation of scheduled caste (SC) and scheduled tribe (ST) households with the non-scheduled population. The incidence of poverty in SC and ST households is much higher than among non-scheduled households. By combining regression estimates for the ratio of per capita expenditure to the poverty line and an Oaxaca-type decomposition analysis, we study how these differences in the incidence of poverty arise. We find that for SC households, differences in characteristics explain the gaps in poverty incidence more than differences in transformed regression coefficients. In contrast, for ST households, differences in the transformed regression coefficients play the more important role.     

Market value,market share,and mergers: Evidence from a panel of U.S. firms

Improving shareholder value has often been cited as a merger determinant. Because mergers create larger firms and less competition, they may increase shareholder value through higher market share and stock‐market value. We investigate merger impacts on firms' stock‐market value and market share. We construct panel data from 4 different data sources on public merging and non‐merging U.S. manufacturing firms for 1980–2003. Instrumental variables and factors such as R&D, patents, and citations control for endogeneity. We find that mergers are positively correlated with stock‐market value and market share.