The world economy is visibly sinking, and the policymakers who are supposed to be its stewards are tying themselves in knots. Or so suggest the results of the G-20 summit held in Shanghai at the end of last month.
The International Monetary Fund, having just downgraded its forecast for global growth, warned the assembled G-20 attendees that yet another downgrade was pending. Despite this, all that emerged from the meeting was an anodyne statement about pursuing structural reforms and avoiding beggar-thy-neighbor policies.
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Negative rates, moreover, have begun to impair the health of the banking system. Charging banks for the privilege of holding reserves raises their cost of doing business. Because households can resort to safe-deposit boxes, it’s hard for banks to charge depositors for safekeeping their funds.
In a weak economy, moreover, banks have little ability to pass on their costs via higher lending rates. In Europe, where experimentation with negative interest rates has gone furthest, bank distress is clearly visible.
The solution is straightforward. It is to fix the problem of deficient demand not by attempting to further loosen monetary conditions, but by boosting public spending. Governments should borrow to invest in research, education, and infrastructure. Currently, such investments cost little, given low interest rates. Productive public investment would also enhance the returns on private investment, encouraging firms to undertake additional projects.
