Skip to content

The LA Fires Are Not a Black Swan Event

The LA fires have devastated Southern California. According to US Weather Service, the financial loss due to the still ongoing fires is already estimated at $135-$150 billion. Whatever the final total ends up being, the… 

The Myth of the Efficient Frontier in Investing

In developing Modern Portfolio Theory, economist Harry Markowitz posited a relationship between risk and reward that exhibited a positive correlation between risk and return, like the one shown in the figure below: The blue curve… 

Why Cost Uncertainty Is Lognormal

I was recently asked by a client why cost uncertainty is lognormal. While the normal distribution is familiar to every statistics student, the lognormal is often less encountered in an academic setting. The normal distribution… 

Five Myths About Quantitative Risk Analysis

I recently saw yet another article about quantitative risk analysis that made me cringe because of its mistaken claims. It was, in the words of the famous physicist Wolfgang Pauli, “not even wrong.” As a…