2.6.4

Monetary Policy Lags & Pitfalls

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Pitfalls of Monetary Policy

In the real world, effective monetary policy faces a number of significant hurdles:

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Monetary policy lags

  • Monetary policy affects the economy only after a time lag that is typically long and of variable length.
  • Remember, monetary policy involves a chain of events: the central bank must perceive a situation in the economy, hold a meeting, and make a decision to react by tightening or loosening monetary policy. The change in monetary policy must percolate through the banking system, changing the quantity of loans and affecting interest rates.
  • When interest rates change, businesses must change their investment levels and consumers must change their borrowing patterns when purchasing homes or cars.
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Monetary policy lags

  • As a result of this chain of events, monetary policy has little effect in the immediate future. Instead, its primary effects are felt perhaps one to three years in the future.
  • The reality of long and variable time lags does not mean that a central bank should refuse to make decisions.
  • It does mean that central banks should be humble about taking action, because of the risk that their actions can create as much or more economic instability as they resolve.
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Excess reserves

  • If banks decide to hold excess reserves, monetary policy cannot force them to lend.
  • Banks are legally required to hold a minimum level of reserves, but no rule prohibits them from holding additional excess reserves above the legally mandated limit.
  • For example, during a recession banks may be hesitant to lend, because they fear that when the economy is contracting, a high proportion of loan applicants become less likely to repay their loans.
  • When many banks are choosing to hold excess reserves, expansionary monetary policy may not work well.

Jump to other topics

1Microeconomics

2Macroeconomics

2.1The Level of Overall Economic Activity

2.2Aggregate Demand & Aggregate Supply

2.3Macroeconomic Objectives

2.4Economic Growth, Poverty & Inequality

2.5Fiscal Policy

2.6Monetary Policy

2.7Supply-Side Policies

3The Global Economy

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