Essays

From time to time, I write down some longer-form thoughts and share them below.

• Card Numbers and Fraud
  When people experience card fraud, they often wonder if they did anything wrong. The dirty secret is that card numbers are not random, relatively easy to generate, and card details are likely floating around the dark web.
• Jet Fuel Hedging
  Some airlines hedge jet fuel by purchasing vast quantities of it in advance. Other airlines have sworn off the practice. Why is that?