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According to the study, a modest premium of 200 Swedish crowns (almost 20 euros) increased the vaccination rate by 4.2 percentage points to 76 percent. Meanwhile, psychological persuasions did little for vaccination.
The results of a study carried out by an international team of scientists are presented in the specialized journal Science. In many parts of the world, very few people have so far been vaccinated to control the virus.
Some cities and countries use financial incentives to encourage vaccination. The Lithuanian government has also proposed balloon payments for people aged 75 and over vaccinated against the coronavirus. If the Seimas approves it, the corresponding law will enter into force on October 18.
In May-July this year, researchers interviewed 8,286 Swedes about their intention to vaccinate online. They are then divided into five groups. One of them was promised 200 crowns for the vaccine, the other was explained the safety and efficacy of the vaccine, and the third was told that the vaccine would protect the others. Another group was asked to make an argument about why the vaccine should be given. The fifth group was a control.
Thirty days after the start of the experiment, anonymized data from the Swedish health services showed that more people in the group who were promised the voucher, regardless of gender, age and income, were actually vaccinated. Meanwhile, other methods did not encourage more active vaccination.
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