CBS News
With millions of Americans still opting against getting vaccinated against COVID-19, retailers, companies and local governments are offering incentives including free beer, donuts and even cash to encourage them get their shots. … Yet while some vaccine holdouts may be swayed by free cash or other offers, such programs have not been shown to boost vaccination rates, new research from the Center for Health Incentives and Behavioral Economics (CHIBE) at UPenn shows.