diff --git a/pdf/2004-Punishing_the_Innocent_along_with_the_Guilty_The_Economics_of_Individual_versus_Group_Punishment.pdf b/pdf/2004-Punishing_the_Innocent_along_with_the_Guilty_The_Economics_of_Individual_versus_Group_Punishment.pdf
new file mode 100644
index 000000000..058271524
Binary files /dev/null and b/pdf/2004-Punishing_the_Innocent_along_with_the_Guilty_The_Economics_of_Individual_versus_Group_Punishment.pdf differ