A broad consensus indicates that Brexit could also negatively affect the level of real per capita income in the UK and could also cause uncertainty and chaos.
On the other hand, Brexit supporters argue that the cessation of net contributions to the EU could offset such a situation. At the same time, IFS has claimed that the total amount of savings in membership fees for the EU would amount to £8 billion, while the total cost of Brexit's negative impact on the economy would be around £70 billion. More and more companies are relocating their activities abroad, according to estimates that indicate a 6% decrease in investment in the first two years after the referendum and a decrease in the number of employees (1.5%).
Companies in the UK economy that export more goods and services to the EU, import more materials from the EU and employ more labor from the EU were more uncertain and Brexit expected it would eventually have a more negative effect on their sales. The impact of this reallocation should ultimately reduce the UK production rate by around 0.5%. As the UK economy has experienced slow productivity growth over the last decade, this effect is equivalent to around 50 % of productivity growth. However, there are considerable doubts about the magnitude of the impact, with cost projections likely to vary between 1 and 10% of UK per capita income.
At that time, the 9% among them declared that Brexit the most prominent element and the 27% stated that it was one of the two or three main sources of uncertainty, but not the principal reason. Given these factors, it is assessed that the unpredictability of Brexit has been associated with a decrease of 6% in investment in the first year after the referendum on Brexit (between July 2016 and June 2017). The economic attractiveness of Britain anyway, will not go down and a trade war with London is in no one's interest,' M Nicolas Firzli, director-general of the World Pensions Council (WPC) says.