Volume 14, Issue 2 March 2018

Learning about Commodity Cycles and Saving-Investment Dynamics in a Commodity-Exporting Economy

Abstract

Despite high levels of commodity prices, the current accounts of several commodity exporters have deteriorated or even reverted recently. This phenomenon is examined using a quantitative small open-economy model with a commodity sector and with imperfect information and learning about the persistence of commodity price shocks. The model predicts that during a persistent commodity price increase, agents believe at first that this increase is temporary but then revise their expectations upward as they are surprised by higher effective prices. Investment therefore expands gradually, driven by the commodity sector, while domestic savings fall, which explains the observed current account dynamics.

Authors

  • Jorge Fornero
  • Markus Kirchner

JEL codes

  • E32
  • D80
  • F41

Other papers in this issue

Eero Tölö and Helinä Laakkonen and Simo Kalatie

Michael T. Belongia and Peter N. Ireland

Andrew K. Rose and Mark M. Spiegel

Mirko Abbritti and Salvatore Dell'Erba and Antonio Moreno and Sergio Sola

Jane Ihrig and Elizabeth Klee and Canlin Li and Min Wei and Joe Kachovec