"This study reviews regulatory instruments designed to reduce environmental externalities from the transport sector …

find that competition has a negative effect on innovation, especially for firms further from the efficiency frontier, and … we do not find support for an inverted U effect of competition on innovation. The authors show that the supply chain of … multinational enterprises and international trade are important channels for domestic firms' innovation. They detect no evidence …

"It is so widely recognized that innovation is a key driver of economic growth that it is cliche to say so. This … article studies product innovation by firms with data from 68 countries, covering more than 25,000 firms in eight … manufacturing sectors. The author assesses the predictions of inter-disciplinary research on innovation by firms. The econometric …

"Innovation is key to technology adoption and creation, and to explaining the vast differences in productivity across … and within countries. Despite the central role of the entrepreneur in the innovation process, data limitations have … restricted standard analysis of the determinants of innovation to consideration of the role of firm characteristics. The authors …

negative relationship between the concentration of innovation portfolios and performance: countries that are the most …