I am grateful to my hon. Friend for that point. I shall come on to address it in a moment.
I was just going to say that some of the uncertainty is inevitable and will not be resolved until the negotiating process has been concluded, but some of it is the result of different things being said by different members of the Government—one has to acknowledge that—as well as the things that have been left unsaid, which may lead others to draw conclusions and then act on them in the absence of clarity.
The announcement by Nissan that it will not invest any more in this country without guarantees from the Government is indeed unwelcome, but it is entirely understandable. What car manufacturer—my hon. Friend the Member for Birmingham, Erdington (Jack Dromey) talked about Jaguar Land Rover—will invest in additional capacity if there is still some doubt that we might leave with no agreement on trade and tumble out on World Trade Organisation terms, which would lead to those cars facing a tariff? I accept that, in the end, we are likely to get an agreement in which there are no tariffs on manufactured goods, and, frankly, the sooner that that can be made clear, the better. There are those who argue that it would be perfectly possible within the two years provided by article 50 not only to negotiate the mechanics of our withdrawal—and that is quite a task—but to conclude a new trading agreement that will give access to the single market for our goods and our services, which have not been much talked about but my hon. Friend made the point that 80% of our economy depends on services. Those who argue that may be right, but I somehow doubt it.