在证券投资中,有分散和集中之争,有多样化和专门化之争。在这里,我们来看看多样化这个原则和策略的优越性和局限性。这里虽然谈的是证券投资,但是,从事其它投资的人,或者从事时间投资、精力投资的朋友,也许也会有兴趣。例如:一个职工是否要用一些业余时间来发展自己其他方面的能力,以便在丢失饭碗的时候,或者本职工作没有发展前途的时候,能够另找出路呢?一个非热门的专业的大学生或者研究生,是否能腾出一部分精力,来学习热门专业课程,以便保证就业 In the securities investment, there is a dispute of concentration and diversification, there is a dispute of diversification and specialization. Here, let us look at the advantages and limitations of this principle and strategy of diversification. Although securities investment is talked about here, people who engage in other investments or those who invest time and energy may also be interested. For example, does a worker need to spend his spare time developing other aspects of his ability to find another way out when he is losing his job or when his job has no future? A non-hot, professional undergraduate or graduate student , Whether it can free up some energy to learn popular professional courses in order to ensure employment