Statistical survey discovered that foreigners will activate Tokyo economy. But Tokyo has a problem of lone seniors.
We selected 121 factors from eStat data and made network analysis where factors connect each other with correlation coefficients.
We focused on Tokyo cities from the previous Japan network analysis.
Rich and Poor
We progressed network analysis of 121 factors on Tokyo cities. The factor network of Tokyo shows that factors are mainly divided into 3 regions in left, middle, and right. The yellow green left region indicates poor people since the factor of unemployed people stands at the center of this region. The right region shows the supercluster of rich people or high income taxpayers as tax income are situated near this region. In the middle, there were foreigners of large circle and workers.
Foreigner as a new working class in Tokyo
The following is top 10 of betweenness among 121 factors.
Label Description Betweenness foreigner.log foreigner 164.7 family_trans family in 2005 129.2 family_worker.log worker in family business 119.9 farmer_product.log agricultural product price 109.2 worker worker 106.1 family_senior_single single senior family 105.1 commuter_in commuter coming to this city 99.5 worker_3 tertiary industry worker 85.3 worker_miner.log mining worker 84.0 worker_3b tertiary industry worker 75.9
The factor of foreigner has the highest betweenness score. As the network diagram shows, foreigner is a hidden activator in Tokyo as workers. On the contrary to our expectation of Japanese homogeneity, foreigner may be a new working class in Tokyo cities, which connects the boundaries of rich and poor people in Tokyo.
Lone Senior Problem in Metropolis
When we look at the poor people region, single senior family is a remarkably large circle there. This suggests that the problem of lone seniors may drag other factor in the poverty in Tokyo.
Immigration Policy in Aging Society
We Japanese continued ethnic homogeneity long years. But in the coming age, we must confront multivalued society which accepts foreigners as living partner in all aspects for our future. Increasing foreign population may lead to some problems, but may also lead us to a rich cultural diversity. We expect policy in Tokyo will improve immigration environment.
And solution to the problem of lone seniors is also important since this problem is the critical point of poverty in metropolis.
This survey was done by data galaxy team on the competition of data journalism camp & award in Dec, 2013.