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Brown, Williams, Moorhead & Quinn, Inc.

Market concentration is an indicator that some market participants may have the ability to engage in anticompetitive practices to the detriment of the consumers. The standard measure of concentration is the Herfindahl-Hirschman Index ("HHI"), which gives greater weight to the market shares of larger firms. In the gas and oil industries, the HHI is given great weight in evaluating market power and approving market based rates. In the electric industry, HHI can be misleading when a single pivotal supplier can withhold participation and endanger a whole market. Brown Williams helps clients assess the situation with tools such as the Pivotal Supplier Screen, Market Share Screen, and Delivered Price Test analyses. Brown Williams’ experts can guide a client through a market share analysis or review another party’s application to ensure its client’s interests are well represented