This theory has in fact been in existence since the beginning of scholarly research in the field. An excellent short version of it can be found in the Encyclopaedia Britannica Volume I, s.v. Amorites; in B. Landsberger, “Period IV 1100–1500:” “ … In addition, the name Hatti came to be used almost synonymously with Amurru: this shift of meaning for these two historical terms is paralleled by the use of the term Emori and Hitti in the Old Testament.”