Posts

Inefficiency of markets with negative prices?

In this post, I briefly describe the event of negative prices market which occured on the NYMEX WTI crude oil May contract Event …

Multivariate break test

In this tutorial, I explain how to implement, in a flexible way, the algorithm of Bai, Lumsdaine, and Stock (1998). Step 1: Lag …

Security Exchange Commission: web browsing emulation and natural language processing

In this tutorial, I explain how to emulate navigation on the SEC website, perform bulk downloads of forms (e.g. 10-K forms) and extract …

Incremental efficient frontier

In this tutorial, I quickly describe how to compute and update an efficient frontier in adding stocks to an existing porfolio with R. …