About 63% of Americans have gotten at least one dose of the COVID-19 vaccine. The Biden administration would like to get that number up to 70% by July 4. One way it’s trying to do that is through incentives. There are lots of incentives now to get the vaccine, aside from the fact that it’ll protect you from getting COVID-19. Free baseball tickets, gift cards, donuts, beer. Also the chance to win a free cruise, or a year of free flights, or $1 million. First things first: There are some people who, no matter what, are not going to get vaccinated. So incentives will not work on them. But there are also people who wanted to wait a little longer or just haven’t gotten around to getting vaccinated yet. “It’s generally believed that these kinds of incentive approaches could help sway many of those people in the middle,” said Kevin Volpp, director of the Penn Center for Health Incentives and Behavioral Economics. Read and listen more at Marketplace.