According to this website: http://www.ncsl.org/research/health/small-business-health-insurance.aspx http://www.ncsl.org/research/health/small-business-health-in

According to this website: http://www.ncsl.org/research/health/small-business-health-insurance.aspx http://www.ncsl.org/research/health/small-business-health-in... "On average, small businesses paid about eight to 18 percent more than large firms for the same health insurance policy" Not sure how many of those small businesses bought directly, or from the ACA exchanges.