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...