Earlier quoted context omitted.
The drawback of taxing wealth is that it distorts markets, it discourages saving. EDIT: Can't comment ("You're posting too fast, blah blah blah"). Here are some replies to the comments bellow: > It's encouraging people to make their money be productive instead of stashing it under a mattress. When you have money in the bank, you're effectively lending most of it to other people. Your money is "productive", which is e…
The economy does not care whether you put your money in a bank or under your mattress. The central bank will influence interest rates in response to your actions. What matters is the amount of money that's actually chasing goods and services. If the central bank wants banks to have more reserves for loans, it buys assets from banks in exchange for newly created reserves. Money markets are a command economy.
Of course, someone still has to decide whether to consume now or invest. Or whether to invest in economically efficient ways, or in ways that are only economically efficient because of weird tax arrangements (but are actually less productive).