The recent Pandora Papers fuss has prompted me to ask a question that has been on my mind for a while.

Does money hidden in offshore trusts, nominee companies and the various other Moneyland arrangements get included in macro-economic statistics like M2, M3 and the Savings Ratio? How visible is this money to econometrics?

I'm not an economist so its possible I just don't know the right keywords, but Google isn't turning up anything on the macroeconomic impact of all this money. There don't seem to be any good estimates of just how much money is hidden this way, so the possibility that it also isn't visible to e.g. central bankers planning the next round of QE is distinctly worrying.