Pareto Improving Price Regulation when the Asset Market is Incomplete

P.J.J. Herings, H.M. Polemarchakis

Research output: Working paperDiscussion paperOther research output

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Abstract

When the asset market is incomplete, competitive equilibria are constrained suboptimal, which provides a scope for pareto improving interventions. Price regulation can be such a pareto improving policy, even when the welfare effects of rationing are taken into account. An appealing aspect of price regulation is that it that it operates anonymously on market variables. Fix - price equilibria exist under weak assumptions. Such equilibria permit a competitive analysis of an economy with an incomplete asset market that is out of equilibrium. Arbitrage opportunities may arise: with three or more assets actively traded, an individual may hold an arbitrage portfolio at equilibrium. The local existence of fix- price equilibrium for prices that are almost competitive may fail for robust examples. Under necessary and sufficient conditions for the local existence of fix - price equilibria, pareto improving price regulation is generically possible.
Original languageEnglish
Place of PublicationTilburg
PublisherMicroeconomics
Number of pages44
Volume1999-30
Publication statusPublished - 1999

Publication series

NameCentER Discussion Paper
Volume1999-30

Fingerprint

Pareto
Asset markets
Equilibrium price
Price regulation
Arbitrage
Competitive equilibrium
Incomplete asset markets
Welfare effects
Competitive analysis
Assets
Rationing

Keywords

  • incomplete asset market
  • fix - price equilibria
  • Pareto improvement

Cite this

Herings, P. J. J., & Polemarchakis, H. M. (1999). Pareto Improving Price Regulation when the Asset Market is Incomplete. (CentER Discussion Paper; Vol. 1999-30). Tilburg: Microeconomics.
Herings, P.J.J. ; Polemarchakis, H.M. / Pareto Improving Price Regulation when the Asset Market is Incomplete. Tilburg : Microeconomics, 1999. (CentER Discussion Paper).
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Herings, PJJ & Polemarchakis, HM 1999 'Pareto Improving Price Regulation when the Asset Market is Incomplete' CentER Discussion Paper, vol. 1999-30, Microeconomics, Tilburg.

Pareto Improving Price Regulation when the Asset Market is Incomplete. / Herings, P.J.J.; Polemarchakis, H.M.

Tilburg : Microeconomics, 1999. (CentER Discussion Paper; Vol. 1999-30).

Research output: Working paperDiscussion paperOther research output

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Herings PJJ, Polemarchakis HM. Pareto Improving Price Regulation when the Asset Market is Incomplete. Tilburg: Microeconomics. 1999. (CentER Discussion Paper).