The IMF recently published the net worth of selected countries taking the latest available data. In other words it looked at the assets available to government with its long term liabilities. The UK was close at the bottom of this chart, and it will have to do some serious efforts to build its net worth again. As the FT writes, since the financial crisis, the negative net worth of the UK government has doubled, the IMF calculated, representing a £1,000bn decline in the government’s wealth.
Pop this up with the consequences of Brexit, than we start to understand that the IMF starts getting worried about the UK.