This paper revisits the link between oil price uncertainty and macroeconomy in the context of a net oil exporting country, Canada. Results obtained from alternative Structural VAR models suggest that while shocks to oil price level do not affect the aggregate level of output, the oil price...

Various forms of instability can be observed in macroeconomic and financial data including changes in variance, changes in cycle properties, or both. Traditional tests do not allow to distinguish between these different cases. This paper proposes and compares two alternative approaches. The...