On the surface, it may seem that lack of job security is something undesirable. Indeed, pessimists point out that it is certainly a cause ot stress. Many people find an identity-a When they through their work. their job (or are afraid of losing it), they also lose their self confidence, or belief in their own ability. This causes worry and depression. In Japan, for example, the daily newspaper Asahi reports a sudden rise in the number of businessmen who need psychological help for their clinical depression. However, this decrease in job security may not necessarily be something bad. It is true that these days, workers must be more flexible--able to change to fit new situations. But optimists claim that flexible people are essentially happier, more creative, and more energetic than people who are rigid