Share of wealth held by the top one percent in the U.S. has increased from 24% in 1980 to 42% in 2012. In this paper, we examine the potential role played by three factors in accounting for this increase: the decline in the progressivity of taxes and the increase in income inequality in the U.S., as well as the decline in the world interest rates. Our model consists of altruistic households who either run a business or work for others. Entrepreneurial households enjoy high returns due to high productivity while the worker household savings earn the bank deposit rate that is determined in a competitive banking sector that equals the rate of return on foreign bonds. While the model economy is calibrated to match the wealth inequality in the U.S. it has other properties that have been difficult to capture in standard life-cycle models such as a positive relationship between life-time income levels and saving rates. We find that the decline in the interest rate plays a major role in accounting for the increase in wealth inequality as it effects the two types of households very differently. Entrepreneurial households benefit from lower financing costs and increase their investments while worker households face lower returns to their savings as the interest rate declines. Other changes such as the decline in the progressivity of taxes plays a less significant role.

讲座从图书、文章和索引三个方面集中介绍了本校图书馆电子资源库的使用方法，着重讲解中国知网、EBSCO、Literature Online、ProQuest、JSTOR及读秀等数据库的检索和使用方法，使英语专业本科生了解文献检索的路径及技巧，学会使用电子资源库，以此打开学术研究之门。

In this presentation, Simon Nelson will discuss the trends impacting education today, asks what this means for the higher and further education sectors, and explains the role that online education can, and should, play in this new world.Education is changing. As our societies adapt to the constantly evolving digital landscape so too does education. The transformative impact of digital technologies and the emergence of new online educational models is not limited by national boundaries. But this new global online higher education eco-system is both an opportunity and a threat. Most traditional universities would have us believe that a “real education” still takes place on-campus, in-class. In the meantime, more innovative universities and new commercial providers scramble to meet increasing demand from industry partners and students themselves for flexible learning, which develops work-ready skills for the 21st Century. Research suggests that jobs for life are a thing of the past, replaced by the gig economy and shorter stints in one role or one company for most employees. This reality, in addition to the widely reported digital skills gap as well as ,the threat of automation is resulting in businesses, governments and individuals seeking new ways to reskill and upskill. Online education may come with grand challenges, and has its critics, yet it presents huge opportunities for bridging skills gaps, sector sustainability and opening access to transformative life-long learning on a global scale.

献礼SISU70华诞。网络教育学院名师系列讲座——莎士比亚作品赏析系列讲座第八讲。

二语学习离不开输入与输出。如何使目标语的输入更加有效？如何使二语者的输出更加接近输入？如何让二者产生积极的互动，最终达成协同？这些是二语学习的关键。讲座结合大量实例，深入浅出地探讨可理解性输入和可理解性输出的关系；结合具体教学和前沿研究，结合“续”理论的实施，讨论如何让互动具有可操作性，并实现高效率的“习得”。通过讲座，让受众学会如何进行师生互动的话语分析和量化研究，如何把握“三段式话语”、垂直结构等方法研究课堂语言，如何进行纠错反馈，如何将输入转化为“吸收”。

报告探讨在欧洲语言文化多元环境下，欧洲汉语外语教学与汉语国际教育之关系及发展途径，提出欧洲汉语外语教学与汉语国际教育是相互依赖、互为表里的关系，要实现国际汉语之长远目标，二者缺一不可，并以教学理念和教材编写关系为例，分享和探讨欧洲汉语外语教学和汉语国际教育在理念及实践上之异同。