The labor shortage is met in part by workers brought in from other parts of Japan, who have filled up the area's hotels and apartments.

WSJ: One Year Later, Japan City Sees a Light��at End of a Long Tunnel

It's a complex comprising offices, hotels, apartments and inviting public plazas.

FORBES: They Will Rise Again

Most U.S. real estate investment trusts own office buildings, shopping centers, hotels or apartments and are in business to funnel rental income to shareholders without paying corporate income tax.

FORBES: Acreage plays