1988 Volume 383 Pages 86-95
In my previous paper (part 1〜part 3), I mentioned the phenomena that the quantity of furniture in the house-hold has increased in recent years. In this report (part 4) I wish to make a close investiation on this them. Unoccupied space has become smaller and more irregular. The phenomena depends on three variables. The first is the size and the form of the room. The second is the function of the room (eg. Family room, kitichin, dining room, bed room, and gest room) and the type of the furniture in the room. The third is the vareity of actions performed in the room.