Richard Soultanian, director at energy consulting firm NUS Consulting Group in Park Ridge, NJ, says that looking at growth from an energy demand perspective, the economy looks tepid in a best case scenario.

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There is really no other frontier that compares to Africa, from the perspective of the population, the resources that are available, the demand for them and the fact that over 60 percent or 70 percent of that population is under the age of 20 which shows growth opportunities.

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"We fundamentally believe that Midtown Manhattan, from a supply and demand perspective, is going to be at a point where the market is going to turn and you're going to see significant rent growth, " Mr. Rechler said.

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When I look at the global water crisis purely from a market-driven perspective, I see perhaps the single greatest imbalance of supply and demand that exists in the global marketplace.

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This is a world that operates from an inside-out perspective, pushing products at customers, parsing and manufacturing demand, tweaking the value chain to achieve ever greater efficiencies, and concerned about outputs more than outcomes.

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Instead of focusing on aggregate demand replacement, policymakers should view government stimulus spending from an economic return perspective that focuses on the potential value created by government spending versus the potential value created by private spending.

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