Preface 1. Introduction 2. Exporting as a Decision Under Uncertainty: The Basic Model 3. The Potential Exporter Under Uncertainty: Extensions of the Basic Model 4. Measuring Changes in Uncertainty 5. Relative Price Incentives to Export: Brazilian Commercial and Exchange Policies and Their Effects 6. An Econometric Test of the Uncertainty Hypothesis 7. Conclusion: Some Observations on Price Uncertainty and Trade. Appendices