The premise of the modern portfolio theory (MPT), proposed by Harry Markowitz in 1952, is diversity. Murphy Choy says that means you should “never put all of your eggs in the same basket.” According to Choy, the theory was never meant to be used with complex investment products because they
I received the following email: Dear Dr. Wicklin, Why doesn't SYMPUT work in IML? In the DATA step, I can say CALL SYMPUT("MyMacro", 5) but this doesn't work in IML! Frustrated Dear Frustrated, The SYMPUT subroutine does work in SAS/IML software! However, the second argument to SYMPUT must be a
Ready for some fun facts? These tidbits were all shared during the Western Users of SAS Software (WUSS) conference held in San Francisco this week: 1. How many million dollars did a simple Excel spreadsheet error cost TransAlta? Answer: $24 million 2. What percentage of mobile phone users older
