As Tohoku struggles to rebuild from last year's quake and tsunami, money continues to pour into the region in the form of central government subsidies for cleanup, repair and reconstruction.

The result has been a reconstruction bubble providing a massive cash infusion to not only construction-related companies, but also local service industries. People from all over the country are moving into the region in search of work, although concern is growing that once the subsidies dry up, it could face a long and protracted slump.

The following are some questions and answers about the reconstruction boom in Tohoku.