Personal income taxation under mobility, exogenous and endogenous welfare weights, and asymmetric information

This paper analyses how governments should tax labour income accruing to a group of highly skilled and geographically mobile individuals who divide their time or career between several jurisdictions. The analysis differs from previous models on migration and taxation by addressing optimal regulation when agents work for several principals. Optimal taxation is developed for social welfare functions with exogenous and endogenous welfare weights. Marginal income taxes are applied for screening purposes, and the rates are lower with endogenous than with exogenous welfare weights. Received: 22 January 1998/Accepted: 3 July 1999)     

2,3──二氨基吩嗪光谱特性研究及应用

研究了各种介质中不同酸度对2，3──二氨基吩嗪（DAP）的光谱特性的影响，发现非离子表面活性剂以及极性有机溶剂对其荧光具有强烈的增敏作用，荧光量子产率大大提高，而且强极性有机溶剂在无水环境下，对其荧光增敏比非离子表面活性剂更强。建立了有机介质和非离子表面活性剂介质荧光增敏的测定方法，并对各种介质增敏机理进行了讨论。     

英汉数字“三”的文化对比及其翻译

在不同的文化中，数字不仅具有简单的计算功能，而且蕴含的文化信息能鲜明地体现该民族的思维方式、社会政治、传统习俗、社会心理，等等。文章比较了数字“三”在中西文化中的不同涵义，并对其差异形成的原因进行分析，探讨可行的翻译方法。     

Approximate optimal allocation in repeated sampling from a finite population

Samples of size n are drawn from a finite population on each of two occasions. On the first occasion a variate x is measured, and on the second a variate y. In estimating the population mean of y, the variance of the best linear unbiased combination of means for matched and unmatched samples is itself minimized, with respect to the sampling design on the second occasion, by a certain degree of matching. This optimal allocation depends on the population correlation coefficient, which previous authors have assumed known. We estimate the correlation from an initial matched sample, then an approximately optimal allocation is completed and an estimator formed which, under a bivariate normal superpopulation model, has model expected mean square error equal, apart from an error of order n^-2, to the minimum enjoyed by any linear, unbiased estimator.     

从1929看2009,经济危机下的中国电影

1929年的美国和2009年的中国都同样处在经济危机的寒潮之下,对比二者电影业的发展状况,分析经济危机对电影业产生的诸多影响,可以看出：首先,由于＂口红效应＂的影响,中美电影在经济危机中都出现了票房的大幅攀升,特别是中国电影增长迅速;其次,危机中的电影技术都得到了进一步的发展,如同1929年声音技术的运用一样,2009年的中国电影则是3D技术崭露头角,3D电影以及3D银幕的数量激增;再次,危机中电影内容普遍具有疗伤倾向,无论是当年美国盛行的歌舞片或是2009年中国主旋律电影的商业化,无一例外;最后,从娱乐产业的更迭趋势来看,1929年美国的百老汇逐渐衰落,电影逐渐取而代之。2009年的中国则是互联网迅速发展的一年,媒介融合趋势下电影的传播介质可能也会发生相应变化。     

Bringing the owners back in: An analysis of a 3-mode interlock network

This paper examines the association between ownership and director interlocks in Swedish big business during the period 1990–2005. By analyses of the 3-mode network of owners, firms, and directors, multiple director assignments are shown to be highly dependent on owner interlocks. The findings provide a new understanding of the mechanisms behind the formation of director interlocks. Furthermore, the association between the interlock types suggests that the ownership network may potentially (co-)produce some of the phenomena that have been attributed to the director network. Future analyses of director interlocks have to bring the owners back in.     

Influencing behaviour: The mindspace way

The ability to influence behaviour is central to many of the key policy challenges in areas such as health, finance and climate change. The usual route to behaviour change in economics and psychology has been to attempt to ‘change minds’ by influencing the way people think through information and incentives. There is, however, increasing evidence to suggest that ‘changing contexts’ by influencing the environments within which people act (in largely automatic ways) can have important effects on behaviour. We present a mnemonic, MINDSPACE, which gathers up the nine most robust effects that influence our behaviour in mostly automatic (rather than deliberate) ways. This framework is being used by policymakers as an accessible summary of the academic literature. To motivate further research and academic scrutiny, we provide some evidence of the effects in action and highlight some of the significant gaps in our knowledge.     

An exploratory analysis of composite choices: Weighing rationality versus irrationality

Humans are engineered neurologically to make rational and irrational choices. This paper introduces a new paradigm for decision making – a composite choice model – in which economic agents are constantly weighing rationality versus irrationality when encountering options. In an exploratory, deterministic, two-period model, an assumption of a two-way cross-embedment (i.e., a two-way interaction between the rational and irrational components) results in a paradoxical phenomenon, an outcome of either tending toward bliss or abyss at the end of the first period. This implies, for instance, a psychological struggle between two selves within the mind. The paradigm proposed is compared to the dual-process theories recently developed by the cognitive sciences. Future research will explore implications for public policy design and implementation.     

Characterizations based on order statistics under sampling without replacement

In this paper, we consider finite populations and investigate their characterizations by regressions of order statistics under sampling without replacement. We also investigate some asymptotic results when the size of the population goes to infinity.     

1-苯基环己硅烷类液晶化合物的量子化学研究──联苯基乙烷系列

运用ＰＭ３ 和ＡＭ１ 两种ＳＣＦ－ ＭＯ 方法，通过能量梯度全优化计算，给出了５ 种１－ 苯基环己硅烷类液晶化合物的稳定几何构型、电子结构和生成热、偶极矩等基本性质，并联系有机电子结构理论进行了讨论