2007 McMaster University survey published in Open Medicine comparing 38 studies that look at outcomes of medical care in the two countries.
2004 American Education Research Association study in the Review of Education Research comparing the results of 232 studies of distance education.
2003 examination of the relationship between corporate social and environmental responsibility and financial performance.
2006 metastudy on the effect of prison education programs on recidivism and post-incarceration employment rates.
2008 Harvard, Duke and University of California study on the contributions of highly skilled and educated immigrants to the United States economy.