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Well-accepted , path-breaking research on learning ( see , for example , Bransford , et al ., " How People Learn " , and Claude Steele 's work on " stereotype threat " ) , shows that expectations heavily influence performance , particularly on tests . But they had better order the data values compatibly with the SORT operators , or mergejoin will fail to work . In practice , though , nothing is ever that simple . If it is found and it does not yet have a commutator itself , then the commutator 's entry is updated to have the newly created operator as its commutator . There are few signs of a quick turnaround for Japan , where policy options are heavily circumscribed by structural weaknesses . The World Investment Report 2001 examined in depth one development dimension issue , that of the promotion of backward linkages between foreign affiliates and local suppliers , and indicated a menu of policy options which could form the basis for a concrete linkage promotion programme .