The Belgian Federal Planning Bureau publishes a study entitled The Macroeconomic Effects of an Oil Price Shock on the World Economy : A Simulation with the NIME Model. No coincidence that they publish it now.
Even though it takes only a macro-economic perspective of an "oil price shock" (and not of gradual and continuous decline in oil), it gives an interesting insight into what might happen to the world.
http://www.plan.be/nl/pub/wp/WP0506/WP0506en.pdf
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The Belgian Federal Planning Bureau (FPB) is a public agency under the authority of the Prime Minister and the Minister of Economic Affairs. The FPB has a legal status that gives it an autonomy and intellectual independence within the Belgian federal public sector.
FPB’s activities are primarily focused on macroeconomic forecasting, analyzing and assessing policies in economic, social and environmental fields.



