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Keywords:

  • E52;
  • E58;
  • H21
  • Friedman rule;
  • overlapping generations;
  • spatial separation

Recent models with spatial separation and limited communication suggest that the Friedman rule may not be optimal. This is important in light of the disparity between theory and practice concerning optimal monetary policy. We take a close look at these models and show that intergenerational transfers are key to the suboptimality of the Friedman rule. The Friedman rule is a necessary condition for achieving the efficient allocation in equilibrium. We also show that the Friedman rule is chosen whenever agents can implement mutually beneficial arrangements.