Currently a new Harvard Business School working paper on the role that trust in buyer-supplier relationships plays in context with the diffusion of new products:
The Speed of New Ideas: Trust, Institutions and the Diffusion of New Products
Trust, we conclude, confers competitive advantage by slowing down the diffusion of new ideas and products in the economy. As trust is built up over time, earning a buyer’s trust confers a significant first-mover advantage.
Not really an astonishing finding but although worth reading!

