Rates of COVID deaths and cases differ markedly across U.S. states, as do rates of vaccination. This study uses cross …-sectional regressions arise, including omitted variables, behavioral responses to vaccination, and reverse causation. The benefits from a … along these lines reveal sizable negative effects of vaccination on deaths and cases up to early December 2021, although …

that, although initially, vaccines have little effect on new infections they strongly reduce the share of mortality out of … hypothesis that the ratio of current mortality to lagged infections is decreasing in the total number of vaccines per one hundred … conclusion from the statistical analysis is that, passed a certain threshold, vaccines moderate the share of mortality from a …

strongly reduce the share of mortality out of a given pool of infections. This paper examines the extent to which this … phenomenon is more general by testing the hypothesis that the ratio of lagged mortality to current infections is decreasing in … that vaccines moderate the share of mortality from a given pool of lagged infections. This is essentially a favorable shift …

, vaccination efficiency was lower in states with a centralized public health agency. States with a larger share of the elderly … performed using vaccination from a more recent period. Finally, a state’s legacy of corrupt activity, across two different time …

as vaccination proceeds. Meanwhile, the disease may continue to spread exponentially unless checked by Non … Pharmacological Interventions (NPI). The key factors are that the mortality risk from a Covid-19 infection increases exponentially … into account, we derive an expression for a critical threshold, which determines the minimal speed a vaccination campaign …