commodities;this model has been further developed by others (Jones 1965,1971;Hill and Mendez 1983:Parai and Yu 1989;Hiscox 2002b).The model reveals a clear linkage between levels of interindustry labor mobility (ILM)and the relative income of labor and capital owners.We build upon this model to analyze the relationship between ILM and constituency cohesiveness. Directly related to our purpose here,from this model we can have the following relationships: d-D<0 (1) onL 6-业，0 (2) onL Wheredenotes the absolute difference between relative changes of labor factor returns for the same labor factor in different industries,here a caret""over a variable denotes the percentage change in that variable,e.g.,w=dw,/w.This absolute difference therefore can be taken to indicate "labor class solidarity".4 Similarly denotes the absolute difference between relative changes of rental rates for the same capital asset used in different industries.n denotes the level of interindustry labor mobility within this economy.5 Since the utility to owners of any type of factors would depend on the income derived from their assets,the model can shed important insight on how the fundamental 4Conforming to the literature,"class solidarity"is measured as the absolute differences between relative changes of returns for the same factor used in different industries,with smaller absolute differences denoting tighter class solidarity.Shrinking absolute differences indicate higher solidarity,which means that given any skill level,returns to different owners of the same factor across industries are more likely to be stable and the relative positions of each factor owner within the economic structure tend to be fixed;less solidarity means such structure is less stable and more prone to change.Hence the absolute difference between relative changes of wages indicates labor class solidarity,while the absolute difference between relative changes of capital returns measures capital class solidarity.. 5A complete derivation of the model can be available upon request.commodities; this model has been further developed by others (Jones 1965, 1971; Hill and Mendez 1983; Parai and Yu 1989; Hiscox 2002b). The model reveals a clear linkage between levels of interindustry labor mobility (ILM) and the relative income of labor and capital owners. We build upon this model to analyze the relationship between ILM and constituency cohesiveness. Directly related to our purpose here, from this model we can have the following relationships:   0 ˆ ˆ 1 2     L w w  (1)   0 ˆ ˆ 1 2     L r r  (2) Where   1 2 wˆ  wˆ denotes the absolute difference between relative changes of labor factor returns for the same labor factor in different industries, here a caret “  ” over a variable denotes the percentage change in that variable, e.g., 1 1 1 wˆ  dw / w . This absolute difference therefore can be taken to indicate “labor class solidarity”. 4 Similarly   1 2 rˆ  rˆ denotes the absolute difference between relative changes of rental rates for the same capital asset used in different industries.  L denotes the level of interindustry labor mobility within this economy. 5 Since the utility to owners of any type of factors would depend on the income derived from their assets, the model can shed important insight on how the fundamental 4 Conforming to the literature, “class solidarity” is measured as the absolute differences between relative changes of returns for the same factor used in different industries, with smaller absolute differences denoting tighter class solidarity. Shrinking absolute differences indicate higher solidarity, which means that given any skill level, returns to different owners of the same factor across industries are more likely to be stable and the relative positions of each factor owner within the economic structure tend to be fixed; less solidarity means such structure is less stable and more prone to change. Hence the absolute difference between relative changes of wages indicates labor class solidarity, while the absolute difference between relative changes of capital returns measures capital class solidarity.. 5 A complete derivation of the model can be available upon request