Ibrahim Unalmis

On the Sources of Oil Price Fluctuations

Analyzing macroeconomic impacts of oil price changes requires first to investigate different sources of these changes and their distinct effects. Kilian (2009) analyzes the effects of an oil supply shock, an aggregate demand shock, and a precautionary oil demand shock. The papers aim is to model macroeconomic consequences of these shocks within a new Keynesian DSGE framework. It models a small open economy and the rest of the world together to discover both accompanying effects of oil price changes and their international transmission mechanisms. Our results indicate that different sources of oil price fluctuations bring remarkably diverse outcomes for both economies.

On the Sources and Consequences of Oil Price Shocks: The Role of Storage

Building on recent work on the role of speculation and inventories in oil markets, we embed a competitive oil storage model within a DSGE model of the U.S. economy. This enables us to formally analyze the impact of a (speculative) storage demand shock and to assess how the effects of various demand and supply shocks change in the presence of oil storage facility. We find that business-cycle driven oil demand shocks are the most important drivers of U.S. oil price fluctuations during 1982-2007. Disregarding the storage facility in the model causes a considerable upward bias in the estimated role of oil supply shocks in driving oil price fluctuations. Our results also confirm that a change in the composition of shocks helps explain the resilience of the macroeconomic environment to the oil price surge after 2003. Finally, speculative storage is shown to have a mitigating or amplifying role depending on the nature of the shock.