"When you can measure what you are speaking about, and express it in numbers, you
know something about it; but when you cannot express it in numbers, your knowledge
is of a meagre and unsatisfactory kind; it may be the beginning of knowledge, but you
have scarcely, in your thoughts, advanced to the stage of science, whatever the matter may be." Lord Kelvin
Corruption risks in public procurement: EU funds, contractual networks