Tikz is a drawing language commonly used in LaTex. The following contains a large number of templates for commonly used economic diagrams. You are welcome to use it. If you have developed some nice templates, I would be very happy to post it here if you are willing to share.
This is a tool that allow user to generate simple diagram.
##Acknowledgement
Some graphics are created with financial support from NUS Education Enhancement Grant (TEG) under the project titled "I hear I forget, I see I remember, I draw I understand''---Development of Easily customizable templates for visual organizers and graphical illustrations. I would like to thank research assistant by Ren Yunfei and Zhang Jin (for generator), Zhan Mingjie, Cao Wanzhong and Zhang Jin (for templates).