Firm-level interactions between exporting and productivity: Industry-specific evidence

This paper investigates interactions between exporting and productivity at the firm level, using a panel of firms in the UK chemical industry. This is both highly technology intensive and the UK’s largest exporting sector. We find exporters are more productive than non-exporters, but are also on average smaller. This superior productivity performance among exporters appears to be caused by both self-selection and learning-by-exporting effects. In contrast to other studies, we find learning effects are significantly positive among new entrants, weaker for more experienced exporters and negative for established exporters. JEL no. F14, D21, L65     

重新审视我国农业劳动力转移的选择

一、引言。目前，我国农村有1．5亿多富余劳动力，使这些人科学合理地转移到其它领域工作，是发展农村市场、增加农民收入、全面建设小康社会的当务之急。回眸我国农业劳动力流动转移的状态，我们会发现有许多需要重新调整、重新认识、重新提高的理论与实践。因此，慎重审视劳动力的转移，促使人力资源的优化配置，是我们理论工作的一项义不容辞的任务，本拟从我国农业劳动力剩余的原因状况，慎选和应选转移模式以及政府应给予如何政策扶持等问题进行讨论。     

Finding Pareto Optimal Insurance Contracts

This paper deals with on-line computation—or step-wise learning—of Pareto optimal insurance contracts. Our approach tolerates that the loss distribution might be unknown, intractable, or not well specified. Thus we accommodate fairly inexperienced parties. Losses are here simulated or observed, one at a time, and they cause iterated revisions of the premium. The mechanical and global nature of probability calculus thereby yields to more tentative, myopic procedures, possibly closer to how humans operate or reason in face of risk. Sequential revisions may also reduce the expense of insurers' time and money in seeking sufficient statistics. Emphasized below is the remarkable simplicity and stability of the resulting adaptive procedures. Special attention goes to catastrophic risks, and to subsidized or competitive insurance.     

WPS在处理质检办公文件中的合理使用

通过ＷＰＳ汉字编辑软件在处理质检办公文件的合理应用，提出了使用ＷＰＳ某些功能键的技巧，可使文件处理更规范，更完整。     

Effectiveness and Effects of China’s Capital Controls

I. IntroductionNations at every stage of development and in every region of the world are more closelylinked through trade in goods and services, through flows of funds and investments ineach others’ economies than ever before. But in sharp contrast to more and more nationsloosening restrictions on international trade, controls over capital flows are still substantialnearly everywhere except in the most developed economies. This is certainly the case inChina, where restrictions on movements …