我们生活的时代似乎比以往任何一个时期都无序和复杂。竞争和选择渗透到我们生活的各个角落。作为消费者,我们在消费品市场上面对着令人眼花缭乱的商品和服务,在相互竞争的产品中作出抉择。而在劳动力市场上,我们又在不断地与别人竞争,选择适合自己的工作职位。父辈们不但对我们新奇的发型和服饰感到不可思议,更对我们飘忽不定的生活、时常变换的工作惴惴不安。然 The times we live in seem to be less orderly and complex than at any previous time. Competition and choice permeate every corner of our lives. As consumers, we face a dazzling array of goods and services in the consumer goods market that make a difference between competing products. In the labor market, we are constantly competing with others to choose the job that suits them. Not only are our fathers incredible for our novelty hairstyles and costumes, they are even more anxious about our erratic life and our constantly shifting work. Of course