When Common Agricultural Policy payments come to an end, what will they be replaced with?
Compared to most industries subject to the ups and downs of global markets, farming is a cottage industry.
Where mining has a few operators dominating the scene, agriculture involves thousands of producers in each country.
That simple fact works against the high levels of investment Defra secretary Andrea Leadsom would like to see in the run-up to a hard Brexit.
(Source: The Guardian)