As Chair of the Public Accounts Committee I have been conducting an investigation into the collapse of Carillion and I recently told Parliament: The system is broken.

There are not enough suppliers bidding for contracts across whole swathes of Government, and the system is skewed against smaller, specialist businesses that get work only as part of a longer supply chain.

At each stage, margins are squeezed, and too often we see poor service, sharp practice and an unnecessary cost to taxpayers.