抄録
The bridging to the remote island brings convenient traffic and economic effect. On the other hand, it reduces local community and becomes the negative effect deteriorating environment. For many islanders, it is because of bridging that the procurement of daily commodities becomes convenient. However, it may lead to losing the small store in the island to build a bridge. It is very inconvenient for social vulnerable such as disadvantaged shoppers. In this way, bridging to the remote island has positive factors and negative factors. In this paper, we analyze it from the viewpoint of economics how utility of the disadvantaged shopper changes before crosslinking and after. And we consider about the policy that can regain the lost market of the island after crosslinking.
