The Covid Economic Slump: Let's consider the economic impact of the pandemic on the economy. Assume that the pandemic evolves according to the basic SIR model: SIR=S(t)I(t)=S(t)I(t)I(t)=I(t) with initial conditions S(0),I(0), and R(0), satisfying S(0)+I(0)+R(0)=1 and S+I+R=0S(t)+I(t)+R(t)=1 for all t0. Assume that some fraction 0