1. Abbott, M., & Doucouliagos, H. (2004). Research output of Australian universities. Education Economics, 12(3), 251–265.
2. Abramo, G., D’Angelo, C. A., & Di Costa, F. (2008). Research collaboration and productivity: Is there correlation? Higher Education, 57(2), 155–171.
3. Australian Academy of Science. (2014). 2014–2015 Federal budget: Analysis of measures relating to science, research and innovation. Retrieved from https://www.science.org.au/sites/default/files/user-content/2014-15federalbudgetinitialanalysis.pdf
4. Baum, C. F. (2007). checkreg3: Stata module to check identification status of simultaneous equations system. Retrieved from http://ideas.repec.org/c/boc/bocode/s456877.html
5. Baum, C. F., Schaffer, M. E., Stillman, S. (2007). Enhanced routines for instrumental variables/GMM estimation and testing. Working paper no. 667. Retrieved from http://fmwww.bc.edu/ec-p/WP667.pdf