We study the timing of new technology adoption in markets with input outsourcing, and thus with vertical relations. We find that technology adoption can take place earlier when firms engage in input outsourcing than when they produce the input in-house. Hence, the presence of vertical relations can accelerate the adoption of a new technology. We also find that particular features of a vertically related market, such as the distribution of bargaining power and the contract type through which trading is conducted, can crucially affect the speed of technology adoption. (C) 2015 Elsevier B.V. All rights reserved.