Based on a comprehensive data set comprising 13 countries, 22 industries and a period of 30 years we investigate the impact of internal and external knowledge pools of both green and "other than green" technologies on green patent activities. It turned out that the internal green knowledge stock...

Based on patent data and industry specific energy prices for 18 OECD countries over 30 years we investigate on an industry level the impact of energy prices on green innovation activities. Our econometric models show that energy prices and green innovation activities are positively related and...

Based on representative firm-level survey data for the three countries Austria, Germany, and Switzerland, we investigate the effects of regulation, energy taxes, voluntary agreements, and subsidies, on the creation of green product innovations. Our data set allows us to distinguish between the...

The paper aims at explaining empirically the diffusion of E-commerce based on two largescale sample surveys conducted in the Swiss economy. The paper adds to previous work in two ways: firstly, we estimate separate models for E-selling and E-purchasing, and, secondly, we distinguish between...

This paper analyses the relationship between past innovation output, competition, and future innovation input in a dynamic econometric setting. We distinguish two dimensions of competition that correspond to the concepts of product substitutability and entry barriers due to fixed costs. Based on...