PUBLIC-PRIVATE PARTNERSHIPSA group of experts established by the Dutch government is proposing "Just Water Partnerships" in which development finance institutions would invest alongside private firms to improve water systems in lower-income countries. One of those, the Calvert Global Water Fund, tracks the performance of an index of companies that "are offering products or services that are part of a solution to global water challenges," said portfolio manager Jade Huang. "There is no one-size-fits-all approach that can help to approach the many aspects of dealing with water challenges," Huang added. Lance Coogan, who developed that concept for water price indexing, describes it as "the volume-weighted average of the actual water transactions that are taking place". How can you have those things without having the water price?"

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