Why so many Koreans are called Kim
economist.com
economist.com
- Kim & Chang;
- Bae, Kim, & Lee;
- Lee & Ko;
- Shin & Kim
- Jeong, Kim & Lee, etc etc.
http://www.economist.com/news/books-and-arts/21611039-how-re...
http://www.economist.com/blogs/economist-explains/2014/08/ec...
Unfortunately they are all behind a pay wall.