diff --git a/economics/README.md b/economics/README.md
index 594d587..ac433df 100644
--- a/economics/README.md
+++ b/economics/README.md
@@ -6,4 +6,6 @@
 
 * [Optimal Bidding in Online Auctions (2001)] (http://www.mit.edu/~dbertsim/papers/Revenue%20Management/Optimal%20Bidding%20in%20Online%20Auctions.pdf) by Dimitris Bertsimas, Jerey Hawkinsy, Georgia Perakis 
 
+## Open Source
+
 * [The Simple economics of Open Source  (2000)] (http://www.people.hbs.edu/jlerner/simple.pdf) by Josh Lerner and Jean Tirole