Before revision:  Our work sheds new light on the role of oil prices in shaping the world economy by investigating the metabolic paths of value across trade between 1960 and 2010 , by means of Markov Chain  analysis.
After revision:  Our work sheds new light on the role of oil prices in shaping the world economy by investigating flows of goods and services through global value chains between 1960 and 2010 , by means of Markov Chain analysis.