World Health Organization (2003) Social determinants of health: The solid facts. 2nd Edition, World Health Organization, Geneva.http://www.euro.who.int/__data/assets/pdf_file/0005/98438/e81384.pdf
 Benz, M. and Frey, B.S. (2004) Being independent raises happiness at work. Swedish Economic Policy Review, 12, 97-138.
 Blanchflower, D.G. (2000) Self-employment in OECD countries. Labour Economics, 7, 471-505.http://dx.doi.org/10.1016/S0927-5371(00)00011-7
 Blanchflower, D.G. and Oswald, A. (1998) What makes an entrepreneur? Journal of Labor Economics, 16, 26-60.http://dx.doi.org/10.1086/209881
 Anderson, P. (2008) Happiness and health: Well-being among the self-employed. Journal of Socio-Economics, 37, 213-216.http://dx.doi.org/10.1016/j.socec.2007.03.003
 Taylor, M. (2004) Self-employment in Britain: When, who and why? Swedish Economic Policy Review, 12, 139-173.
 van der Hulst, M. (2003) Long work hours and health. Scandinavian Journal of Work, Environment, & Health, 29, 171-188.
 Monheit, A.C. and Vistnes, J.P. (2006) Research findings #2: Health insurance status of workers and their families, 1996. Agency for Healthcare Research and Quality, Rockville.
 Carper, K. and Beauregard, K. (2009) Characteristics of uninsured workers: Estimates for the US civilian noninstitutionalized population 19-64 years of age, 2006: Statistical brief No. 257. Agency for Healthcare Research and Quality, Rockville.
 Carroll, W. (2005) The health insurance status of US workers, 2003: Estimates for civilian non-institutionalized workers ages 16-64: Statistical brief #71. Agency for Healthcare Research and Quality, Rockville.
 Reinhardt, U.E. (2013) Much ado about nothing: The US Supreme Court’s rules on health reform. Health Economics, Policy and Law, 8, 125-132.
 Lewin-Epstein, N. and Yuchtman-Yaar, E. (1991) Health risks of self-employment. Work and Occupations, 18, 291-312.http://dx.doi.org/10.1177/0730888491018003003
 Stephan, U. and Roesler, U. (2010) Health of entrepreneurs versus employees in a national representative sample. Journal of Occupational and Organizational Psychology, 83, 717-738.http://dx.doi.org/10.1348/096317909X472067
 Hundley, G. (2001) Why and when are the self-employed more satisfied with their work? Industrial Relations, 40, 293-316. http://dx.doi.org/10.1111/0019-8676.00209
 Jamal, M. (1997) Job stress, satisfaction, and mental health: an empirical examination of self-employed and non-self-employed Canadians. Journal of Small Business Economics, 35, 48-57.
 Dolinsky, A.L. and Caputo, R.K. (2003) Health and female self-employment. Journal of Small Business Management, 41, 233-241.http://dx.doi.org/10.1111/1540-627X.00079
 Perry, C.W. and Rosen, H.S. (2001) The self-employed are less likely to have health insurance than wage-earners. So what? NBER Working Paper, No. 8965, National Bureau of Economic Research, Washington DC.
 US Small Business Administration (2010) The small business economy: A report to the President.http://www.sba.gov/sites/default/files/sb_econ2010.pdf
 Perry, C.W. and Rosen, H.S. (2001) Insurance and the utilization of medical services among the self-employed. NBER Working Paper, No. 8490, National Bureau of Economic Research, Washington DC.
 Ware, J.E., Kosinski, M., Turner-Bowker, D.M. and Gandek, B. (2002) How to score version 2 of the SF-12 health survey. Quality Metrics, Lincoln.
 Ai, C. and Norton, E.C. (2003) Interaction terms in logit and probit models. Economic Letters, 80, 123-129.http://dx.doi.org/10.1016/S0165-1765(03)00032-6
 Norton, E.C., Wang, H. and Ai, C. (2004) Computing interaction effects and standard errors in logit and probit models. Stata Journal, 4, 154-167.
 Rivers, D. and Vuong, Q.H. (1988) Limited information estimators and exogeneity tests for simultaneous probit models. Journal of Econometrics, 39, 347-366.http://dx.doi.org/10.1016/0304-4076(88)90063-2
 Blundell, R.W. and Smith, R.J. (1989) Estimation in a class of simultaneous equation limited dependent variable models. Review of Economic Studies, 56, 37-58.http://dx.doi.org/10.2307/2297748
 Terza, J.V., Basu, A. and Rathouz, P.J. (2008) Two-stage residual inclusion estimation: Addressing endogeneity in health econometric modeling. Journal of Health Economics, 27, 531-543.http://dx.doi.org/10.1016/j.jhealeco.2007.09.009
 Bruce, D. (1999) Do husbands matter? Married women entering self-employment. Small Business Economics, 13, 317-329. http://dx.doi.org/10.1023/A:1008179214572
 Lin, Z., Picot, G. and Compton, J. (2000) The entry and exit dynamics of self-employment in Canada. Small Business Economics, 15, 105-125.http://dx.doi.org/10.1023/A:1008150516764
 Borjas, G.J. (1986) The self-employment experience of immigrants. Journal of Human Resources, 21, 485-506.http://dx.doi.org/10.2307/145764
 Yuengert, A.M. (1993) Testing hypotheses of immigrant self-employment. Journal of Human Resources, 30, 194-204. http://dx.doi.org/10.2307/146196
 Broussard, N., Chami, R. and Hess, G.D. (2003) Why do self-employed parents have more children? CESifo Working Paper, No. 1103, Center for Economic Studies & Ifo Institute, Munich.
 Staiger, D. and Stock, J.H. (1997) Instrumental variables regression with weak instruments. Econometrica, 65, 557-586. http://dx.doi.org/10.2307/2171753
 Hansen, L. (1982) Large sample properties of generalized method of moments estimators. Econometrica, 50, 1029-1054. http://dx.doi.org/10.2307/1912775
 Long, J.S. and Freese, J. (2006) Regression models for categorical dependent variables using Stata. 2nd Edition, Stata Press, College Station.
 US Department of Health and Human Services (1999) Mental health: A report of the Surgeon General—Executive summary. US Department of Health and Human Services, Rockville.
 Pauly, M.V. (1968) The economics of moral hazard: Comment. American Economic Review, 58, 531-537.
 Cohen, S.B. (2009) Attitudes toward health insurance and their persistence over time, adults 2006-2007: Statistical brief No. 260.http://meps.ahrq.gov/mepsweb/data_files/publications/st260/stat260.shtml