In a Bank of England Financial Stability Paper, Olga Cielinska, Andreas Joseph, Ujwal Shreyas, John Tanner and Michalis Vasios analyze transactions on the Swiss Franc foreign exchange over-the-counter derivatives market around January 15, 2015, the day when the Swiss National Bank de-pegged the Swiss Franc. From the abstract:
The removal of the floor led to extreme price moves in the forwards market, similar to those observed in the spot market, while trading in the Swiss franc options market was practically halted. We find evidence that the rapid intraday price fluctuation was associated with poor underlying market liquidity conditions, in particular the limited provision of liquidity by dealer banks in the first hour after the event. Looking at longer-term effects, we observe a reduced level of liquidity, associated with an increased level of market fragmentation, higher market volatility and an increase in the degree of collateralisation in the weeks following the event.
In his blog, Ben Bernanke discusses the merits of longer-term interest rate targeting as a monetary policy tool.
A lot would depend on the credibility of the Fed’s announcement. If investors do not believe that the Fed will be successful at pushing down the two-year rate … they will immediately sell their securities of two years’ maturity or less to the Fed. … the Fed could end up owning most or all of the eligible securities, with uncertain consequences for interest rates overall. On the other hand, if the Fed’s announcement is fully credible, the prices of eligible securities might move immediately to the targeted levels, and the Fed might achieve its objective without acquiring many securities at all.
… A policy of targeting longer-term rates is related to quantitative easing in that both involve buying potentially large quantities of securities. An important difference is that one sets a quantity and the other sets a price. … Concerns about “losing control of the balance sheet” were a factor behind the Fed’s choice of quantitative easing over rate targets while I was chairman.
Conceivably, QE and rate-pegging could be used together … with QE working through reduced risk premiums while the rate peg operates indirectly by affecting the expected path of short-term interest rates. … The principal limitations of rate pegs are similar to those of forward guidance: Both tools are relatively less effective at affecting interest rates at longer maturities, and even at shorter horizons both must be consistent with a credible or “time-consistent policy” path for short-term interest rates.