The Institute
has regularly encouraged symphony organizations to become less
hierarchical and generally to employ more group process throughout
the organization involving participants from various organizational
constituencies. Many people resist this idea because they feel
that group decision making, despite some virtues, is inherently
slower than individual decision making, and even results generally
in less good decisions.
As
reported by Alan B. Krueger in the New York Times, December
7, 2000, sec. C, two Princeton professors recently conducted some
interesting experiments comparing the results of group versus
individual decision making. They published their findings in a
report entitled Are
Two Heads Better than One: An Experimental Analysis of Individual
versus Group Decisionmaking. Follow the link to access their
research report on the Internet.
As reported
in the Times article, the results of one experiment, using
the same conditions and incentives, indicated that groups of five
individuals solving a statistical game problem and acting jointly,
reached decisions just as quickly as individuals solving the same
problem acting individually. Further, group decisions were more
"accurate;" groups were less likely than individuals,
by a significant difference, to arrive at an incorrect outcome.
And whether the groups operated by unanimous consent or majority
rule did not appear to make any difference in group decision making
results.
In a second
experiment, addressing decision choices within a small scale microeconomic
model, groups once again made decisions equally quickly as individuals,
and more accurately.
The New
York Times story goes on to report that group performance
was not explainable by the average, median, or best performance
of members as individuals.
One of the
researchers, Professor Blinder (formerly Vice Chairman of the
Federal Reserve Board), is quoted as follows:
"What
the results suggest is that the interaction that takes place in
a group does improve the decision making, so a group should not
just have one person decide."
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