Yang, Juan; Leatham, David J. - Agricultural and Applied Economics Association - AAEA - 2012
2004 to 2010. The Error correction model (ECM) and the directed acyclic graphs (DAG) are applied to identify price dynamics … among these six variables: rice, wheat, corn, coal, crude oil and ethanol. Our major contribution to the existing literature … lies in two perspectives: 1) We firstly employ the error correction model with directed acyclic graphs to study the price …