Earlier blogposts are in THE SCHOLAR'S SURVIVAL MANUAL:
"I remember with fondness the advice Martin Krieger gave me when I was writing THE SECOND SELF and my tenure case was soon to come up. He said, 'Write every day, you can always revise later.' Krieger is an ally who keeps pragmatism and scholarly aspiration in his sights. Only that strategy will help you have the career of your dreams."
Sherry Turkle, Abby Rockefeller Mauzé Professor of the Social Studies of Science and Technology, MIT.
Wednesday, April 24, 2013
Robert Litterman (a protege of Fischer Black at Goldman-Sachs):
Given the nonnormality of daily returns that we find in most
financial markets, we [Goldman Sachs] use as a rule of thumb assumption that four-[daily]-standard-deviation events in financial markets happen
approximately once per year.
in Lehmann, The Legacy of Fischer Black, chapter 4 (2004).
He also points out that in general daily Value at Risk is about 4 times the daily variance, but not always.
There are also excellent chapters by Myers and Ross, a nice brief discussion of real options, etc