The recent financial market turmoil in the US triggered by the collapse of the Silicon Valley Bank has raised questions about the impact of the US Fed’s monetary policy on the stability of the banking system. More generally it has brought back to fore a fundamental question that central banks all over the world have been grappling with for a while now – should financial stability be given priority over inflation in the conduct of monetary policy? There is no easy answer to this as both problems are serious.
This issue is of crucial importance for India as well. It has been less than a decade since the Reserve Bank of India adopted inflation targeting as its monetary policy framework and under IT, the primary goal of monetary policy is achieving price stability. Expecting monetary policy to also keep an eye on financial stability, will distract attention from the central bank’s legally mandated objective, and may lead to destabilising outcomes for the economy in general.
There are some practical as well as conceptual problems in making financial stability an objective of monetary policy.
First of all, it is difficult to define financial stability. We can only see financial sector instability when it manifests for example through the failure of a systemically important bank, or the bursting of an asset price bubble, but before such an event occurs, we cannot precisely describe what is financial sector stability. Moreover, there are various institutions in the financial system involving a large number of participants that interact with each other thereby creating a complex, interconnected network. Within this system, sources of financial instability can be varied. We have seen financial instability occurring due to failures of banks, insurance companies, pension funds or mutual funds, and we have seen crises in the stock market and bond market. Ex-ante, it is often difficult to identify the specific part of this vast, complex network where a risk is building up.
Also, once instability occurs in any part of this network, given the interconnectedness, it can spread through the entire system leading to what is commonly known as contagion. It is difficult to predict whether an event of financial instability will indeed trigger a contagion, how rapidly the contagion will spread through the system or what impact it will have on different parts of the network.
Secondly, given that financial stability is difficult to define, it is also hard to measure. Often financial sector regulators use "stress tests" to assess the resilience of the system under various scenarios. Problem is that they only test for risks that they are worried about. There are many other risks beyond the obvious ones and typically those are the ones that get financial institutions into trouble, all the more making financial stability difficult to measure.
Monetary policy works best when it has clearly defined objectives and quantitative targets that guide its formulation. Given the challenges of defining and measuring, it is difficult for monetary policy to target financial stability as compared to price stability which can be both defined as well as measured. In India, for example, the IT framework clearly lays out the goal of the RBI’s monetary policy as achieving a 4% CPI (consumer price index) target. Such a clear, quantitative target is inconceivable when it comes to financial stability.
Finally, and most importantly, policymaking must be guided by the Tinbergen principle which conceives of economic policy as the relation between instruments and goals. It stipulates that the number of achievable goals is limited by the number of available policy instruments. Under the inflation targeting framework, the repo rate in India (or the Fed funds rate in the US) must be used to target inflation. It is therefore best to find another tool to address financial stability so that the Tinbergen principle can be applied.
So if monetary policy is not the answer, then what can be done to address financial instability?
Some have argued that central banks can inject liquidity to safeguard financial instability. There are three problems with this. First, injecting liquidity only makes sense when the underlying problem is illiquidity, say an irrational run against a bank with safe but illiquid assets (such as a loan to a profitable factory). But this is hardly ever the case. Usually, as in the case of SVB, runs occur because banks are insolvent i.e. the value of their assets has fallen below the value of their liabilities. In such a situation, the only solution is to inject capital. Injecting liquidity can in fact make matters worse because it enables more people to flee the ailing bank(s), thereby increasing -- not reducing – panic.
Secondly, liquidity can be a temporary solution in situations involving a credit freeze and, it may help restore confidence in the system. But it is like calling the fire brigade in the event of a fire; it is needed to douse the fire but does not help prevent future fires.
Third, addressing instability using liquidity may also mean keeping the system flooded with excess liquidity for a long time which in turn may endanger price stability.
Broad based financial stability can be achieved only by improving governance standards, and establishing strong supervisory oversight over the concerned institutions to help avoid the build-up of risks. The SVB collapse, like the Global Financial Crisis of 2008, reflected a colossal failure of governance and supervision.
In summary, in the short run, the solution to financial instability is capital; in the long run, it is better governance and supervision. Monetary policy would then be free to pursue its "natural target": price stability.
In the case of India on the other hand, price stability is a pressing concern. CPI inflation has been higher than the RBI's target level of 4% for a while now and in particular, core inflation has been remarkably stubborn at 6% for a long period of time. Hence, as the RBI gears up to announce its monetary policy decision on April 6, it needs to retain its focus on lowering the CPI inflation to the target level. The US Fed may have slowed down the pace of rate hikes in view of the latest financial market turmoil but that should not distract the RBI from prioritising domestic macroeconomic stability and inflation control.
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