After all, corporate borrowers do not borrow at the “risk-free” yield of, say, US Treasury bonds, and evidence shows that monetary expansion can push down the interest rate on government debt, but have hardly any effect on new bank lending to firms or households. In fact, the causality is the reverse: the reason why government interest rates in the UK and elsewhere are so low is that interest rates for private-sector loans are so high.
最后，政府借债的低成本并不会自动拉低私人部门的资本成本。毕竟，公司借款人不可能以像美国国债那样的“无风险”收益率借钱，有证据表明，货币扩张可以拉低政府债务的利率，但很难影响银行向公司和家庭发放的新贷款的利率。事实上，这里的因果关系正好相反：英国和其他地区的政府利率之所以如此之低，是因为私人部门贷款利率太高了。