Will it bounce back or will it be another downdraft on the roller coaster?

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And from the top of the roller coaster, it's a long, scary ride back to Earth.

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Dowell Myers, a professor of urban planning and demography at the University of Southern California, said the state's growth has been a "roller coaster, " but he doesn't expect the ride to go back up in the future.

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Nice, but here's the grim arithmetic of roller-coaster returns: If you lose 50%, you can't make it back by gaining 50%.

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