Knowledge,Competence, And Regional Development

This study examines the impact that locational spillovers have on firm performance. On the basis of a uniquely created data set consisting of high-technology start-ups publicly listed in Germany, this paper tests the proposition of locational spillovers positively affecting firm performance, as measured by abnormally high profits on the stock market. The results provide evidence that geographic proximity and university spillovers are complementary determinants of firm performance. Although neither geographic proximity nor academic research spillovers alone can explain firm performance, a combination of both factors results in significant higher stock market performance. The results also show that academic spillovers are heterogeneous in their impact, depending on the type. In particular, spillovers from social sciences have a different impact on firm performance than do spillovers from natural sciences.     

Multivariate GARCH Volatility Across Major Industry Groups of the Stock Exchange of Thailand

This paper examines the volatility on the time-series relations among the returns of industry group indices in the stock exchange of Thailand. Does volatility of the return series in one industry group indices necessarily lead to volatility in other industry group indices among the sample of eight industry groups？ This research will be valuable to investors utilizing a better understand diversification needed to get good returns. Daily data （2,116 days） are used in this paper covering data for the nine-year period from January 5, 2004, to August 31, 2012. Multivariate Generalized Autoregressive Conditional Heteroscedasticity was tested consisted of： （1） Diagonal VEC Model; （2） Baba Engle Kraft Kroner Models （BEKK Models）; （3） Vector Autoregressive Moving Average GARCH Model （VARMA GARCH Model）; and （4） Constant Conditional Correlation Model （CCC Model）. The findings indicated that the major result shows that, volatility in one industry group necessarily lead to volatility in other industry group indices in the opposite way and in the similar way.     

Inter-industry Technology Spillover Effects in China： Evidence from 35 Industrial Sectors

The present paper calculates 35 industrial sectors’ similarity matrices for the period of 1997-2008 using China’s input-output tables for 1997,2002 and 2007,and uses these to measure inter-industry technology spillover to analyze the spillover effects on industrial sectors’ labor productivity.The empirical analysis shows that inter-industry technology spillover has a significant positive effect on the labor productivity of each industry.The elasticity of productivity effects of inter-industry technology spillover is not only larger than that of direct R&D input,but also increases over time.We group the industries into four major categories and find that the inter-industry technology spillover effect within the categories is,on average,greater than that between the four categories,indicating that technology spillover occurs more easily between similar industries.This research shows that the interindustry technology spillover effect in China has begun to increase,and the government should take advantage of this effect.     

An extension of the multi-output state-contingent production model

This paper presents new developments on the state-contingent theory of production under uncertainty with stochastic prices. Our main purpose is to generalize the usual finite discrete state-contingent production model to infinite dimensional, possibly uncountable spaces which look like a more realistic framework. Usual duality results are established in this general context, shedding some light on the links between risk-neutral probabilities and shadow prices. A direct generalized production risk premium is defined and is shown to be independent of the inputs level when the technology is output translation homothetic. In such a case, the technology exhibits constant absolute riskiness. We thank Bob Chambers for his helpful comments.     

我国股指期货与现货市场信息传递与波动溢出关系研究

股指期货与现货市场关系是监管者关注的重点问题。本文采用我国股指期货上市以来1分钟级高频数据,应用向量误差修正模型、方差分解、多元T-GARCH等,考察期现两市信息传递、波动溢出效应的影响。实证结果表明,尽管股指期货和股票市场之间短期内存在相互引导关系,但股票市场价格变动更多来自于自身影响,起主导作用,而且两市长期均衡收敛也是以股票市场占主导地位;两市存在显著的双向波动溢出,期货市场的波动溢出效应强于股票市场的波动溢出效应;两市场存在明显的非对称效应,期货市场对坏消息更为敏感,而现货市场对好消息更为敏感。     

OFDI绿色技术溢出与全球价值链升级--以中国对“一带一路”沿线国家为例

随着我国与“一带一路”沿线国家交流的加深,我国对“一带一路”沿线国家的直接投资(OFDI)规模呈增长趋势,且绿色技术溢出效应显著。为进一步推动“一带一路”沿线国家经济高质量发展,贯彻人类命运共同体理念,选择2005—2018年“一带一路”沿线26个国家的面板数据,利用基于数据包络分析法的曼奎斯特指数法(DEA—Malmquist)测算我国OFDI绿色技术溢出,实证分析其对沿线国家全球价值链参与度和地位跃升的影响,并以地区、发展程度、产业为分组依据进行分样本回归,考察OFDI绿色技术溢出对全球价值链升级的异质性影响。研究结果表明,我国OFDI绿色技术溢出显著促进了“一带一路”沿线国家全球价值链参与度和地位的跃升。尽管OFDI绿色技术溢出与全球价值链参与度和地位具有非线性关联和时序异质性,但均处于非线性曲线的上升阶段;在区际经济地理禀赋约束下,OFDI绿色技术溢出的全球价值链升级效应呈现出禀赋异质性、空间异质性、状态依存性特征。首先,与“一带一路”沿线欧洲国家和发达国家相比,我国OFDI绿色技术溢出对“一带一路”沿线亚洲国家和发展中国家的全球价值链升级效应更显著;其次,与农业和工业相比,服务业的全球价值链升级效应更显著。为实现“一带一路”沿线国家全球价值链向高端环节跃升,既要通过扩大规模、提高质量、多元发展的方式增强我国对“一带一路”沿线国家的OFDI绿色技术溢出效应,又要切实提高区际经济外向度与契约质量,加强营商环境建设,充分利用东道国禀赋优势,强化OFDI绿色技术溢出的全球价值链升级效应。     

Information transmission between the Gulf equity markets of Saudi Arabia and Bahrain

This paper examines whether the emerging Gulf markets of Saudi Arabia and Bahrain in conjunction with the US market exhibit cointegrating relationship. Additionally, the transmission of information and volatility spillover between the Gulf markets is explored using a bivariate EGARCH model. We find that although the markets are not cointegrated, the Gulf markets do share information flows. Specifically, we observe an asymmetric spillover of volatility from the smaller though more liberal and accessible Bahraini market to the larger and less accessible Saudi market. The observed difference in information processing may partly be due to a well-developed Bahraini financial sector that encourages wider participation by international investors who play a significant role in assimilating new information.     

外商在华直接投资的溢出效应——基于地区层面的研究

运用面板数据对外资的溢出效应进行了初步分析，实证结果证明了外资正面溢出效应的存在。对东、中、西部地区的进一步分析表明，外资在中部地区产生的溢出效应相对较大。最后依据实证结果，从三个地区的实际出发，分别给出了相应的政策建议。     

自适应SLC系统的方向性隐零点

本文通过对自适应旁瓣对消系统(SLC)的方向性图的分析,证明了位于干扰方向的隐零点的存在,首次得出了用单辅助天线即可对付多干扰这一重要结论.     

An Empirical Study of Volatility in Seven Southeast Asian Stock Markets Using ARV Models

This paper investigates the volatility persistence, volatility variability from day to day and transmission of volatility in seven Southeast Asian stock markets from 1980 to 1991 using the ARV approach. We found strong evidence that shocks to volatility are persistent in Taiwan. Moreover, the Stock Exchange of Thailand Daily Index has the strongest interday volatility fluctuation. Instantaneous causality of volatility among six of the seven markets (except Seoul) was discovered. Besides, there is significant volatility spillover effect from Hong Kong to Taiwan, Malaysia to Singapore and Singapore to Malaysia in the period 1980 to 1991.