抄録
The purpose of this study is to analyze the changes in the sports industry in Japan, mainly from the viewpoint of family income and expenditure. The market of the sports industry has a deep relation to personal life style, and thus it must be considered from the side of personal demand. Considering today's trends, sports are being played by the old and young, the rich and not rich, and are becoming one of the important factors that make one's life vital and satisfactory. The Sports Quotient, which means the proportion of sports expenditure to household expenditure, clearly shows that sports is becomingg a necessity for people just as eating and sleeping, and that it will play an important role in analyzing people's living standard, in place of Engel's Quotient.
