Imperfect Information and Saving in a Small Open Economy
AbstractEmerging markets are more volatile and face different types of shocks, in size and nature, compared to their developed counterparts. Accurate identification of the stochastic properties of shocks is difficult. We show evidence suggesting that uncertainty about the underlying stochastic process is present in commodity prices. In addition, we build a dynamic stochastic general equilibrium model with informational frictions, which explicitly considers uncertainty about the nature of shocks. When formulating expectations, the economy assigns some probability to the shocks being temporary even if they are actually permanent. Parameter instability in the stochastic process implies that optimal saving levels (debt holdings) should be higher (lower) compared to a process with fixed parameters. Imperfect information about the nature of shocks matters when commodity GDP shares are high. Thus, economic policies based on misperception of the underlying regime can lead to substantial over/under saving with important associated costs.
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Bibliographic InfoPaper provided by International Monetary Fund in its series IMF Working Papers with number 11/60.
Date of creation: 01 Mar 2011
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This paper has been announced in the following NEP Reports:
- NEP-ALL-2011-04-02 (All new papers)
- NEP-CBA-2011-04-02 (Central Banking)
- NEP-DGE-2011-04-02 (Dynamic General Equilibrium)
- NEP-LAM-2011-04-02 (Central & South America)
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- Laura Veldkamp, 2003.
"Learning Asymmetries in Real Business Cycles,"
03-21, New York University, Leonard N. Stern School of Business, Department of Economics.
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