本文基于2001-2016年的146起中国制造业上市公司海外并购样本的事件研究与大数据B o o tstrap检验,发现,内外网络均衡有助于提升中国企业海外并购后创新质量,且对国内创新质量的促进作用高于国际创新质量;母国和东道国的数字化水平高时...本文基于2001-2016年的146起中国制造业上市公司海外并购样本的事件研究与大数据B o o tstrap检验,发现,内外网络均衡有助于提升中国企业海外并购后创新质量,且对国内创新质量的促进作用高于国际创新质量;母国和东道国的数字化水平高时,网络均衡对并购后创新质量的提升作用更为显著;当母国与东道国数字鸿沟小时,并购方网络均衡与东道国数字化水平的交互作用更能提升中国并购后创新质量;当并购目标方知识复杂度高时,网络均衡与数字化的交互作用对提升中国企业海外并购后创新质量的作用更显著。表明保持内外部网络均衡以及提高我国数字化水平是弥合复杂性知识缺口的重要机制。本研究为形成数字经济情境下一“网络优势决定论”一的新兴市场跨国公司竞争优势的新理论体系提供了重要实证依据,对中国制造业企业通过高质量海外并购弥合复杂知识缺口,走向世界创新中心具有重要价值。展开更多
Choroidal capillary endothelia cell （CEC） plays a critical role in the development of choroidal neovascularization which is one of the major causes of blindness. An effective method for CEC cultivation was proposed....Choroidal capillary endothelia cell （CEC） plays a critical role in the development of choroidal neovascularization which is one of the major causes of blindness. An effective method for CEC cultivation was proposed. The isolation of human choroidal CECs using micro dissection followed by the use of superparamagnetic beads （Dynabeads） coated with the CD 31, which selectively binds to the endothelial cell surface. Cells bound to beads were isolated using a magnetic particle concentrator. The CECs were planted into type Ⅳ collagen coated 24 well plates. The results show that the primary cultured CEC is induced to tube formation in collagen Ⅳ coated environment, which can be presented as an in vitro model of choroidal neovascularization.展开更多
The existing literature on innovation concentrates mostly on large industrial firms and high-technology industries, whereas, little attention has been given to agribusiness. Empirical evidence regarding the driving fo...The existing literature on innovation concentrates mostly on large industrial firms and high-technology industries, whereas, little attention has been given to agribusiness. Empirical evidence regarding the driving forces behind innovation in agribusinesses in developing countries, China in particular is scarce. This paper helps fill that void. It develops a framework in which innovation results from synergies between internal resources and external networks. This paper applies and tests the framework using 2003-2005 data from a panel survey of 32 leading agribusiness firms in Shandong Province, China. The empirical results indicate the importance of internal resources, external networks and the synergies between them. We find that R＆D expenditures and the number of technical employees are internal resources that are both important to product innovation. Surprisingly, management quality is negatively related to the possession of a unique technology and new products as a proportion of all products. It is possible that management quality is associated with more formalization and rigidity in decision-making, hindering creativity and lengthening the new product development cycle. In order to develop innovative products, our results suggest that investing in R＆D and hiring more technical staff may be more effective approaches than spending on managerial talent.展开更多
文摘本文基于2001-2016年的146起中国制造业上市公司海外并购样本的事件研究与大数据B o o tstrap检验,发现,内外网络均衡有助于提升中国企业海外并购后创新质量,且对国内创新质量的促进作用高于国际创新质量;母国和东道国的数字化水平高时,网络均衡对并购后创新质量的提升作用更为显著;当母国与东道国数字鸿沟小时,并购方网络均衡与东道国数字化水平的交互作用更能提升中国并购后创新质量;当并购目标方知识复杂度高时,网络均衡与数字化的交互作用对提升中国企业海外并购后创新质量的作用更显著。表明保持内外部网络均衡以及提高我国数字化水平是弥合复杂性知识缺口的重要机制。本研究为形成数字经济情境下一“网络优势决定论”一的新兴市场跨国公司竞争优势的新理论体系提供了重要实证依据,对中国制造业企业通过高质量海外并购弥合复杂知识缺口,走向世界创新中心具有重要价值。
基金The Shanghai Science and Technology Com-mittee "Qi Ming Xin" Project ( No02QB14037 )The Youth Foundation ofShanghai Jiaotong University,School ofMedicine (No 040202)
文摘Choroidal capillary endothelia cell （CEC） plays a critical role in the development of choroidal neovascularization which is one of the major causes of blindness. An effective method for CEC cultivation was proposed. The isolation of human choroidal CECs using micro dissection followed by the use of superparamagnetic beads （Dynabeads） coated with the CD 31, which selectively binds to the endothelial cell surface. Cells bound to beads were isolated using a magnetic particle concentrator. The CECs were planted into type Ⅳ collagen coated 24 well plates. The results show that the primary cultured CEC is induced to tube formation in collagen Ⅳ coated environment, which can be presented as an in vitro model of choroidal neovascularization.
文摘The existing literature on innovation concentrates mostly on large industrial firms and high-technology industries, whereas, little attention has been given to agribusiness. Empirical evidence regarding the driving forces behind innovation in agribusinesses in developing countries, China in particular is scarce. This paper helps fill that void. It develops a framework in which innovation results from synergies between internal resources and external networks. This paper applies and tests the framework using 2003-2005 data from a panel survey of 32 leading agribusiness firms in Shandong Province, China. The empirical results indicate the importance of internal resources, external networks and the synergies between them. We find that R＆D expenditures and the number of technical employees are internal resources that are both important to product innovation. Surprisingly, management quality is negatively related to the possession of a unique technology and new products as a proportion of all products. It is possible that management quality is associated with more formalization and rigidity in decision-making, hindering creativity and lengthening the new product development cycle. In order to develop innovative products, our results suggest that investing in R＆D and hiring more technical staff may be more effective approaches than spending on managerial talent.
