这其中的部分原因在于美国儿童进入幼儿园的年龄限制。因为入园儿童的年龄门槛通常在9月到1月初之间，夏天生的孩子通常是班级里年龄最小的。(8月份出生的人在某种程度上更可能成为CEO，因为这个月份出生的孩子通常要推迟一年才能入幼儿园，他们在班级里年龄最大。)

The part of the reason is that American children enter kindergarten age limit.Because of the age of the child in the threshold is usually in September to between early January,Children born in the summer is usually the age of the youngest in the class.(People born in August in a certain extent are more likely to become CEO,For this month's child usually want to delay a years to the kindergarten,They are in the class the largest age.)

　　这份报告显示，在标准普尔500指数成分股公司CEO的抽样中，仅有6.1%的人出生在6月，5.9%的人出生在7月，远远低于3月份(12.5%)和4月份(10.7%)出生的CEO的比率。研究者共调查了375名曾在1992年至2009年间拥有CEO头衔的人。

"This report shows that,In the standard &poor's 500 index constituent stock company CEO of sampling,Only 6.1% of the people who was born in June,5.9% of the people who was born in July,Far less than 3 months(12.5%)And April(10.7%)The CEO of birth rate.The researchers were surveyed 375 was between 1992 and 2009 people with CEO title.

　　在班级里，年龄较大的孩子，如3月和4月出生的孩子，往往比年龄小的孩子表现更好。在儿童四五岁的时候，就算仅有几个月的差异，智力发展水平就可能很不相同。年龄较大的孩子在幼儿园里表现出色，识字速度可能更快，并因此被选拔学习更高级的课程，未来高管的材料就这样登场了。

In the class,Older children,Such as march and April's child,Often than young children better performance.In children's four or five years old,Even if only a few months of differences,Intelligence development level may is not the same.Older children do well in the kindergarten,Literacy rate may be faster,And therefore be selection learning more advanced course,The future executives materials so the debut.

　　为了进一步研究学校入学日期的影响，研究人员还特别查看了1960年之后入学的CEO的出生日期。之所以选在1960年，是因为那时大多数州都规定了入学年龄门槛。在1955年及以后出生的43名CEO中，只有一人出生于6月，两人出生于7月，这个比率都远远低于数学意义上的常态。 （中新网生活频道）

In order to further study the influence of the school entrance date,The researchers also examined the special after 1960 entrance CEO date of birth.The reason to choose in 1960,Because at that time most states have stipulated the school age threshold.In 1955 and later was born in 43 CEO,Only one person was born in June,Two people was born in July,This ratio are much lower than mathematical sense of normalcy. (Beijing life channel)