productivity and unions

[Whitalone@xxxxxxx]

Pkters,

    It has been a reoccurring theme over the years among pkt discussions that
the decline in union representation has widen the gap in wealth distribution.
The most basic question is how this decline in union representation has
affected the productivity and profits in those firms where this decline has
occurred. I am wondering if anyone can provide me with resources that analyze
productivity gains/losses in companies with strong union representation as
opposed to those firms with weak union representation and perhaps even with
firms with no representation.  Even better would be analysis that discusses
these gains/losses in firms that have moved from strong to weak union
representation. The more recent the analysis the better.

thanks again

Scott Simpson