From cf7e4a5e062d17dd5efc86796b0d51b79853261c Mon Sep 17 00:00:00 2001
From: Hui Lan <lanhui@zjnu.edu.cn>
Date: Sat, 22 Feb 2020 15:41:30 +0800
Subject: spm-slides.tex: lock in
---
spm-slides.tex | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/spm-slides.tex b/spm-slides.tex
index 15a46a2..4489f69 100644
--- a/spm-slides.tex
+++ b/spm-slides.tex
@@ -556,6 +556,16 @@ The value of a network grows by the square of the size of the network.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\foilhead{Lock-in}
+
+Unable / unwilling to switch.
+
+Phone number.
+
+Word processor.
+
+
%A record of the past activities for future reference.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%\foilhead{Choosing a license and applying it}
--
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