The article examines how economic reforms affect Russia, Saudi Arabia, and the UK. By using models, the researchers found that each country responds differently to shocks due to their unique policies and structures. Russia would benefit from a smaller government, while Saudi Arabia needs structural reforms to avoid output decline. Lower oil prices can be positive for countries with oil-intensive production, but have hurt these oil exporters due to their reliance on oil revenues. Implementing productivity gains and structural reforms, along with fiscal and monetary changes, could help these economies perform better during oil price drops by diversifying exports.