Population per copy is 2.38 and copies per household is 1.22. Press Club system in Japan's newspaper journalism. Writers who cover specific field usually register the appropriate press club and have their own desks at the club.
Journalists can get information while sitting in their desks.
Corporations can efficiently hand out their newsreleases. Also, club members usually enjoy privilege to have regular round-table conference with the officials. Still, there are many arguments over this system. Typically, most articles of Japanese newspapers have no signature. This could be a root of some trouble or miss-leading articles.