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Search in Asset Markets

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  • Ricardo Lagos

    ()
    (Economics New York University)

  • Guillaume Rocheteau

Abstract

This paper investigates how the degree of trading frictions in asset markets affects portfolio allocations, asset prices, efficiency, and several measures of liquidity, such as execution delays, bid-ask spreads, and trade volumes. To this end, we generalize the search-theoretic model of financial intermediation of Duffie, Garleanu and Pedersen (2005) to allow for more general preferences and idiosyncratic shock structure, unrestricted portfolio choices, aggregate uncertainty, and entry of financial intermediaries (dealers). Investors are subject to shocks that periodically change their desired asset holdings, and contact dealers to rebalance their portfolios. Investors and dealers are matched bilaterally according to a stochastic, time-consuming process, and the latter have instantaneous access to a competitive (inter-dealer) market for the asset. We study the model with a fixed measure of dealers and show that a steady-state equilibrium exists and is unique. We provide a simple condition on preferences under which a reduction in trading frictions (e.g., a reduction in execution delays) will lead to an increase in the price of the asset. We also study the connection between the volatility of asset prices and the degree of trading frictions. From a normative standpoint, we find that the asset allocation is constrained-inefficient unless investors have all the bargaining power in bilateral negotiations with dealers. We also analyze the model with entry of dealers, thereby endogenizing the extent of the trading frictions. We show that the dealers' entry decision introduces a feedback that can give rise to multiple equilibria, and construct examples. With entry, we find that both the portfolio allocation across investors and the number of dealers are socially inefficient

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Bibliographic Info

Paper provided by Society for Economic Dynamics in its series 2006 Meeting Papers with number 869.

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Date of creation: 03 Dec 2006
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Handle: RePEc:red:sed006:869

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Keywords: Search; asset markets;

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References

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Citations

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Cited by:
  1. Ricardo Lagos & Guillaume Rocheteau & Pierre-Olivier Weill, 2007. "Crashes and recoveries in illiquid markets," Working Paper 0708, Federal Reserve Bank of Cleveland.
  2. Veronica Guerrieri & Guido Lorenzoni, 2009. "Liquidity and Trading Dynamics," Econometrica, Econometric Society, vol. 77(6), pages 1751-1790, November.
  3. Nicolae B. Garleanu & Lasse H. Pedersen, 2009. "Dynamic Trading with Predictable Returns and Transaction Costs," NBER Working Papers 15205, National Bureau of Economic Research, Inc.
  4. Georges, Christophre, 2008. "Staggered updating in an artificial financial market," Journal of Economic Dynamics and Control, Elsevier, vol. 32(9), pages 2809-2825, September.
  5. Ricardo Lagos, 2008. "The Research Agenda: Ricardo Lagos on Liquidity and the Search Theory of Money," EconomicDynamics Newsletter, Review of Economic Dynamics, vol. 10(1), November.
  6. Huberto M. Ennis & John A. Weinberg, 2007. "Interest on reserves and daylight credit," Economic Quarterly, Federal Reserve Bank of Richmond, issue Spr, pages 111-142.
  7. Guillaume Rocheteau & Ricardo Lagos, 2008. "Liquidity in asset markets with search frictions," Working Paper 0804, Federal Reserve Bank of Cleveland.
  8. Ricardo Lagos & Guillaume Rocheteau, 2007. "Search in Asset Markets: Market Structure, Liquidity, and Welfare," American Economic Review, American Economic Association, vol. 97(2), pages 198-202, May.

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