A survey study was conducted in order to examine the hypothesis that workah
olism may be a mode of adapting to a stressful work environment. A question
naire was distributed to members of the Japan Federation of Automobile Work
ers' Unions in Japan. A total of 4,621 workers (4,083 men, 509 women, 29 un
identified) returned usable data (response rate = 71.9%). The results of a
correlation analysis indicated that work overload-quantity and work overloa
d-quality had significantly positive relations with Driven and little or no
significant relations with Enjoyment of work. Blue-collar employees who wo
rk in highly structured and controlled environments were less likely to be
workaholic than white-collar employees (in particular those in sales divisi
ons). The results of ANOVA indicated that work overload had different effec
ts on workaholism by age groups among blue-collar employees. It was found t
hat work overload increased the degree of Driven and Enjoyment of work for
those under 34 years old and it increased Driven and decreased Enjoyment of
work for those over 35 years old.