The limits of negative interest rates

Negative interest rates have been introduced by some central banks in order to stimulate the economies. However, the idea of a negative interest rate is not widely accepted, and currently only the central banks' base rates have been changed below zero. There are several limits of negative interest rates. Firstly, it has a limit from politics. People like accumulating their wealth; therefore, negative interest rates, which could damage savers' profits, could face lots of political pressure. Secondly, it has a limit from the current monetary system. Introducing negative interest rates could damage the current financial system, as lenders will not lend their money for negative returns. The third limit is about wealth distribution. When there is a monetary stimulus policy, usually the wealthiest class benefits the most from such policy. The big businesses generate incomes for the wealthiest class and lower interest rates create an environment for those big businesses to grow faster. Lowering interest rates could widen the wealth gap in the society. Based on these three limits, further lowering interest rates might cause social, political and economic chaos.