Over the last 30 years, the US financial system has grown to proportions threatening the global economic order. This column suggests a 'doomsday cycle' has infiltrated the economic system and could lead to disaster after the next financial crisis. It says the best route to creating a safer system is to have very large and robust capital requirements, which are legislated and difficult to circumvent or revise.
Over the last three decades, the US financial system has tripled in size, as measured by total credit relative to GDP (see Figure 1). Each time the system runs into problems, the Federal Reserve quickly lowers interest rates to revive it. These crises appear to be getting worse and worse – and their impact is increasingly global. Not only are interest rates near zero around the world, but many countries are on fiscal trajectories that require major changes to avoid eventual financial collapse.
Figure 1.
Source: Bloomberg, Department of Commerce USA
What will happen when the next shock hits? We believe we may be nearing the stage where the answer will be – just as it was in the Great Depression – a calamitous global collapse. The root problem is that we have let a 'doomsday cycle' infiltrate our economic system (see Figure 2 and Haldane and Alessandri 2009).
Figure 2.
The doomsday cycle has several simple stages. At the start, creditors and depositors provide banks with cheap funding in the expectation that if things go very wrong, our central banks and fiscal authorities will bail them out. Banks such as Lehman Brothers – and many others in this past cycle – use the funds to take large risks, with the aim of providing dividends and bonuses to shareholders and management.
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