Notes, Comments and Preliminary results Apr 26 2012 Yoichi Tsuchiya   Is the Purchasing Managers' Index useful for assessing the economy's strength? A directional analysis   Abstract  Contact Information  Citation  Full Text  -  Note   Jul 13 2010 Yoichi Tsuchiya   Linkages among precious metals commodity futures prices: evidence from Tokyo   Abstract  Contact Information  Citation  Full Text  -  Note