这一政策并不新鲜 — — 欧洲央行、瑞典银行、瑞士国民银行和其他央行都已在实施这一政策 — — 但对日本银行来说，这是个未知领域。
Though this policy is not new – it is already being pursued by the European Central Bank, the Bank of Sweden, the Swiss National Bank, and others – it is uncharted ground for the BOJ.