Although true, there really is no substitute for money (cash or a deposit account) in terms of liquidity and fungibility.
You need at least some liquid capital, and those with the least money will always be 100% liquid (or very close to it), and are hence the worst off under negative interest.
You need at least some liquid capital, and those with the least money will always be 100% liquid (or very close to it), and are hence the worst off under negative interest.