高校海外学生思想教育工作初探

海外学生是一个比较特殊的群体,做好他们的思想政治工作具有深远而重大的意义.做好这方面学生的思想政治工作首先是要采取多样、有效的方式对海外学生进行熟悉和了解;其次是建立学生个人档案,做到资料真实、完备,教育及时、有针对性;最后是从课程教学安排上进行引导和教育,做到将思想教育工作贯彻到学生在校的各个环节.     

树型网络中IPTV系统的流量均衡策略

提出一种在树型网络中的网络电视(IPTV)系统负载均衡算法,该算法通过服务器放置点的选择和服务器内容分配实现负载均衡.首先把大的树型网络分解成多个小的树型网络,对每个小的树型网络应用一种改进的搜索算法,最后把在多个子树的解组合成原问题的解,较好地将流量均匀分配到整个网络中.     

COVID时代美联储货币政策对我国经济溢出效应分析

通过梳理2020年美联储采取的资产负债表政策,剖析其对我国宏观经济、商品价格、金融市场的溢出效应,并提出积极应对美联储货币政策转向的风险、保持央行资产负债表的健康运行机制、提升人民币国际化地位的政策建议.     

High-speed rail and inventory reduction: firm-level evidence from China

Using a balanced panel of manufacturing firms from China between 2007 and 2013, we estimate that being connected to a high-speed rail (HSR) system leads to 9.5% reduction in local firms’ input inventory spending. The effect is stronger for downstream industries and private enterprises. A back-of-envelope calculation suggests that each dollar of HSR investment reduces input inventory stock by 12 cents, which is significantly larger than the effects found in previous studies based on highway or road investment. Declines in transportation and communication cost, as well as agglomeration effect, are identified as plausible mechanisms. Our findings reveal a micro channel through which improved transport infrastructure brings about economic gains, and contribute to the cost-benefit assessment of HSR investment.     

Facial Structure and Achievement Drive: Evidence from Financial Analysts

We use a large pictorial sample of Chinese financial analysts to test the association between facial width‐to‐height ratio (fWHR) and performance in men. Financial analysts offer an ideal setting for our investigation because we can objectively track individual analysts’ behaviors and performance. We find that high‐fWHR analysts are more likely to conduct corporate site visits and they exhibit better performance. The positive fWHR–performance association survives a battery of robustness checks and the association is more pronounced for analysts with lower status, for firms with higher uncertainty, and for analysts facing more intense competition. Our results suggest that the dominant trait predicted by fWHR is achievement drive.     

Happiness and consumption: evidence from China

Using the 2012 China Household Finance Survey, this study finds that happiness in China is positively associated with expenditures on status-related and socially motivated goods, not with spending on improving material well-being or primarily intended for procuring material goods. It also reveals that socially motivated consumption has a status element and the effects of different types of consumption on happiness vary with people’s educational background.     

How exporting firms respond to technical barriers to trade?

This paper investigates how technical barriers to trade (TBTs) affect firm exports. The implementation of the “child‐resistance” decision (CR decision) in the EU offers an ideal quasi‐natural experiment to identify the causal effect of TBTs on firm performance. Using data on Chinese firms that exported cigarette lighters between 2004 and 2010, we show that firms exporting to the EU not only adjust their product quality to meet the requirements in the CR decision, but also upgrade their product quality in other dimensions. However, both the export value and export volume to the EU decline. At the same time, less productive exporters are forced to exit from the EU market. Lastly, heterogeneous effects of the CR decision are documented.     

Is debt conservatism the solution to financial constraints? An empirical analysis of Japanese firms

ABSTRACT

This paper investigates why firms choose the conservative financing strategy known as non-positive net debt policy, which is a more recent prevalent trend among Japanese firms. The analysis reveals that Japanese firms are more likely to be financially conservative if they are smaller, older and more profitable and have fewer growth opportunities and tangibility. The survival analysis further investigates the duration of conservative debt policy and ordinary debt policy. The evidence shows that firms adopt/abandon the conservative policy with different motivations and preferences over debt conservatism. In particular, we argue that the more financially constrained firms abandon the conservative debt policy sooner than their counterparts, while less financially constrained firms abandon the ordinary (less conservative) debt policy sooner than their counterparts. The results suggest that a firm uses a conservative debt policy in terms of net leverage as a temporary buffer to mitigate financial constraints.     

生命健康领域前沿探测方法和技术预见实践探索

摘?要：把人民生命健康放在优先发展战略地位，以科技创新引领卫生健康事业新发展，需要通过开展技术预见科学判断和前瞻把握生命健康领域的“卡脖子”问题、关键核心技术和未来发展趋势，回答生命健康科学技术如何促进经济社会发展和提升人民群众生活质量等一些科学问题。本研究旨在综合利用多源数据和计算机算法，探索性地构建基于数据挖掘的科技前沿探测方法模型和实施流程，识别出生命健康9个子领域计算机的95个前沿技术课题。同时组织开展德尔菲调查，依靠专家智慧，综合考量未来愿景、社会发展和民生需求，遴选出面向2035年的11项优先发展技术方向，为党和政府科学决策服务、为提高全民科学素质和推动创新驱动发展提供重要的战略支撑。     

Innovation subsidy under duopoly

Innovation plays extremely important roles in the society, and underinvestment in innovation popularly exists. This article aims to capture innovative subsidy with game theory model. First, unilateral subsidy stimulates both innovation and outputs of subsidized firms, while it deters those of opponents. Second, under innovation subsidy, relationship between subsidized firm's innovation and product substitutability satisfies a U shape. For opponents, it is also a U-shaped relationship. Third, under unilateral subsidy, subsidizing high-efficiency firms yields more innovation than subsidizing low-efficiency firms. Finally, bilateral subsidy stimulates more innovation than unilateral subsidy. This study supports theory to subsidize innovation efficiently.