How does the visibility (identifiability) of groups such as Blacks and Asians contrast with the invisibility of White ethnics in shaping their organizational experiences?

In several ways

Explanation:

The visibility of certain race groups can contrast wit their white counterparts in different and negative ways. The clearest example is the ¨invisibility¨ of a white criminal versus a black one. For many people a white criminal is just a criminal but a black criminal can be marked for the rest of his life as a black criminal. In respect to organizational experiences I recall the different music unions in L.A. in the late fourties: The white music union got all the well-paid jobs and the black music union the left-overs. This prompted black saxophonist Buddy Collette and Charlie Mingus to seek cooperation between the two unions and in the early fifties they succeeded in amalgating both unions.  

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the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.