摘要
按照演化经济学的观点，从经济学的角度可以找到企业核心竞争力的真正内涵。首先对企业的核心竞争力理论分别从经济学与管理学方面做简要的阐述，然后利用演化经济学的理论，对企业的核心竞争力——“惯例”作了分析、归纳，并给出了企业惯例的假设与特征。
Aim:To establish the frequency of Y chromosome microdeletions in an unselected group of infertile Croatian men. Methods:An unselected group of 105 patients (male partners of infertile couples),both with idiopathic and non- idiopathic infertility,consecutively referred to the outpatient infertility clinic,gynecology department,General Hospital Pula,Istria County,Croatia,was examined for the presence or absence of Y chromosome microdeletions by poly- merase chain reaction analysis.Results:One of the 105 men (0.95 %,95 % CI=0.17-5.2 %) was found to have a microdeletion.Conclusion:A low frequency of Y chromosome microdeletions was found in the group of unselected infertile Croatian men.
