Decision making, selecting from the available options, a definition:
The thought process of selecting a logical choice from the available options.
When trying to make a good decision, a person must weight the positives and negatives of each option, and consider all the alternatives. For effective decision making, a person must be able to forecast the outcome of each option as well, and based on all these items, determine which option is the best for that particular situation.
http://www.businessdictionary.com/definition/decision-making.html
Now why can't Brexiters tell us what the model for UK-EU trading will be, in the case of Brexit, so we can weigh up the options?
Currently there are only two options available to us: IN or OUT.
The Outers are dreaming up a utopia if we Exit, but without the necessary base lines on which to project economic forecasts, it is a leap of faith into the unknown.
The Remainers, at least, have a base line on which to project economic forecasts, supported and emphasised by the G7.
http://www.bbc.com/news/business-36394905
Systems thinking in the case for Brexit.
We've been told so many times that the Brexiters want to "take back control".
Applying a systems thinking to this idea:
Systems exist in two types of environment, the main, inner environment where everything can be considered as part of the system, or as a controlled or controllable part of that system.
Then there's the other environment, outside the boundary, that is an environment that influences, or is influenced by the system. But it is not controllable.
The Brexiters keep saying that they want to take back control, but i would argue that the things that they want to control are outside the boundary. They can only be influenced, or the system is influenced, by those things that Brexiters want to control.
For instance: Immigration (or net migration)
Brexiters say that they want to control EU migration, they give the impression that it would be so easy, at a stroke of a pen.
However, it's far more complex than that.
In addition, so far, non-EU is nearly half of the equation, and that has not been controlled so far. How will it magically become controllable in the case of Brexit, especially when they Border Agency have their hands full of other issues?