While prep at all levels will help, no deal Brexit will be "highly disruptive" + have "profound political, economic and legal implications, first and foremost for the UK, including most significantly NI + having sig impacts on Ireland and EU.
"There are likely to be significant job losses in the most exposed sectors in a no deal scenario, with an estimated increase in unemployment of 50-55,000 after the UK leaves the EU."
"no deal scenario could involve a headline deficit in the region of 0.5-1.5 per cent GDP for next year, depending on magnitude of economic shock - a deterioration in the General Govt Balance (GGB) of up to €6.5bn